[
 {
  "observation_id": 686,
  "peptide": "AAAITSDILEALGR",
  "proforma": "AAAITSDILEALGR",
  "protein_accession": "Q15063",
  "protein_name": "Periostin",
  "measured_mz": 1400.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1400.77437,
  "ppm_error": 4.02,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1066,
  "peptide": "AAFNSGKVDIV",
  "proforma": "AAFNSGKVDIV",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1120.59964,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1120.5997,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 687,
  "peptide": "AALPAGEGGSPEGAK",
  "proforma": "AALPAGEGGSPEGAK",
  "protein_accession": "Q7TQF7",
  "protein_name": "Amphiphysin",
  "measured_mz": 1311.6687012,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1311.65392,
  "ppm_error": 11.27,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 688,
  "peptide": "AAQEEYIK",
  "proforma": "AAQEEYIK",
  "protein_accession": "P05064",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 951.4644165,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 951.47819,
  "ppm_error": -14.47,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 690,
  "peptide": "AAQPPTETAESSQAEEEK",
  "proforma": "AAQPPTETAESSQAEEEK",
  "protein_accession": "P06837",
  "protein_name": "Neuromodulin",
  "measured_mz": 1902.8522949,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1902.85632,
  "ppm_error": -2.12,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 692,
  "peptide": "ADLAEEYSK",
  "proforma": "ADLAEEYSK",
  "protein_accession": "P68037",
  "protein_name": "Ubiquitin-conjugating enzyme E2 L3",
  "measured_mz": 1025.4664307,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1025.47858,
  "ppm_error": -11.85,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 872,
  "peptide": "ADTLTDEINFLR",
  "proforma": "ADTLTDEINFLR",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 1407.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1407.71144,
  "ppm_error": -1.02,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 693,
  "peptide": "AEGAGTEEEGTPK",
  "proforma": "AEGAGTEEEGTPK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 1275.5700684,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1275.56992,
  "ppm_error": 0.12,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 694,
  "peptide": "AEGATLSNATGAVESTSQAGDR",
  "proforma": "AEGATLSNATGAVESTSQAGDR",
  "protein_accession": "Q61644",
  "protein_name": "Protein kinase C and casein kinase substrate in neurons protein 1",
  "measured_mz": 2092.9841309,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2092.97414,
  "ppm_error": 4.77,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 873,
  "peptide": "AGAHLQGGAKR",
  "proforma": "AGAHLQGGAKR",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1065.59114,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1065.5912,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 695,
  "peptide": "AGEASAESTGAADGAAPEEGEAK",
  "proforma": "AGEASAESTGAADGAAPEEGEAK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 2075.9016113,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2075.89998,
  "ppm_error": 0.79,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 696,
  "peptide": "AGEDGHPGKPGRPGER",
  "proforma": "[Oxidation]^3?AGEDGHPGKPGRPGER",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1664.72,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1664.77354,
  "ppm_error": -32.16,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 697,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "A5A3E0",
  "protein_name": "POTE ankyrin domain family member F",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 698,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P0CG38",
  "protein_name": "POTE ankyrin domain family member I",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 699,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P0CG39",
  "protein_name": "POTE ankyrin domain family member J",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 700,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 701,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P60710",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 976.4489,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": 0.63,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 702,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P60710",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 976.4492798,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": 1.02,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 703,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P62736",
  "protein_name": "Actin, aortic smooth muscle",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 704,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 705,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P63267",
  "protein_name": "Actin, gamma-enteric smooth muscle",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 706,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P68032",
  "protein_name": "Actin, alpha cardiac muscle 1",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 707,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 708,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "Q6S8J3",
  "protein_name": "POTE ankyrin domain family member E",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 709,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 976.43,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": -18.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 874,
  "peptide": "AGFAGDDAPR",
  "proforma": "AGFAGDDAPR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 976.454,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 976.44828,
  "ppm_error": 5.85,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 710,
  "peptide": "AGLQFPVGR",
  "proforma": "AGLQFPVGR",
  "protein_accession": "P0C0S5",
  "protein_name": "Histone H2A.Z",
  "measured_mz": 944.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 944.53123,
  "ppm_error": -33.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 711,
  "peptide": "AGLQFPVGR",
  "proforma": "AGLQFPVGR",
  "protein_accession": "Q3THW5",
  "protein_name": "Histone H2A.V",
  "measured_mz": 944.5319214,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 944.53123,
  "ppm_error": 0.74,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 712,
  "peptide": "AGLQFPVGR",
  "proforma": "AGLQFPVGR",
  "protein_accession": "Q6GSS7",
  "protein_name": "Histone H2A type 2-A",
  "measured_mz": 944.5319214,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 944.53123,
  "ppm_error": 0.74,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 713,
  "peptide": "AGLQFPVGR",
  "proforma": "AGLQFPVGR",
  "protein_accession": "Q8CGP5",
  "protein_name": "Histone H2A type 1-F",
  "measured_mz": 944.5319214,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 944.53123,
  "ppm_error": 0.74,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 714,
  "peptide": "AGLQFPVGR",
  "proforma": "AGLQFPVGR",
  "protein_accession": "Q99878",
  "protein_name": "Histone H2A type 1-J",
  "measured_mz": 944.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 944.53123,
  "ppm_error": -33.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1067,
  "peptide": "AGLQFPVGR",
  "proforma": "AGLQFPVGR",
  "protein_accession": "P0C0S8",
  "protein_name": "Histone H2A type 1",
  "measured_mz": 944.54,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 944.53123,
  "ppm_error": 9.29,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 715,
  "peptide": "AGPGGEAGPGGALHR",
  "proforma": "AGPGGEAGPGGALHR",
  "protein_accession": "Q9P2Y4",
  "protein_name": "Zinc finger protein 219",
  "measured_mz": 1303.65,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1303.65017,
  "ppm_error": -0.13,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 716,
  "peptide": "AGRAPGPRPAR",
  "proforma": "AGRAPGPRPAR",
  "protein_accession": "O00220",
  "protein_name": "Tumor necrosis factor receptor superfamily member 10A",
  "measured_mz": 1105.63,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1105.63373,
  "ppm_error": -3.38,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 717,
  "peptide": "AGRVDLVDESGYVPGYK",
  "proforma": "AGRVDLVDESGYVPGYK",
  "protein_accession": "Q7TQD2",
  "protein_name": "Tubulin polymerization-promoting protein",
  "measured_mz": 1824.9105225,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1824.91265,
  "ppm_error": -1.17,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 718,
  "peptide": "AHSSMVGVNLPQK",
  "proforma": "AHSSMVGVNLPQK",
  "protein_accession": "P09411",
  "protein_name": "Phosphoglycerate kinase 1",
  "measured_mz": 1367.7004395,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1367.71,
  "ppm_error": -6.99,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 719,
  "peptide": "AIEQSIEQEEGLNR",
  "proforma": "AIEQSIEQEEGLNR",
  "protein_accession": "P61264",
  "protein_name": "Syntaxin-1B",
  "measured_mz": 1615.7910156,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1615.7922,
  "ppm_error": -0.74,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 720,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTM[Oxidation]DSVR",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1631.8303223,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1631.8309,
  "ppm_error": -0.35,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 721,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTM[Oxidation]DSVR",
  "protein_accession": "Q7TMM9",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1631.8303223,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1631.8309,
  "ppm_error": -0.35,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 722,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTM[Oxidation]DSVR",
  "protein_accession": "Q9CWF2",
  "protein_name": "Tubulin beta-2B chain",
  "measured_mz": 1631.8303223,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1631.8309,
  "ppm_error": -0.35,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 723,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTMDSVR",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1615.8361816,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1615.83598,
  "ppm_error": 0.12,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 724,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTMDSVR",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1615.8349,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1615.83598,
  "ppm_error": -0.67,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 725,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTMDSVR",
  "protein_accession": "Q7TMM9",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1615.8361816,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1615.83598,
  "ppm_error": 0.12,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 726,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTMDSVR",
  "protein_accession": "Q9CWF2",
  "protein_name": "Tubulin beta-2B chain",
  "measured_mz": 1615.8361816,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1615.83598,
  "ppm_error": 0.12,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1068,
  "peptide": "AILVDLEPGTMDSVR",
  "proforma": "AILVDLEPGTMDSVR",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1615.8186,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1615.83598,
  "ppm_error": -10.76,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 875,
  "peptide": "ALDDMISTLK",
  "proforma": "ALDDMISTLK",
  "protein_accession": "P49368",
  "protein_name": "T-complex protein 1 subunit gamma",
  "measured_mz": 1106.57613,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1106.57619,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 727,
  "peptide": "ALGFPLERPK",
  "proforma": "ALGFPLERPK",
  "protein_accession": "Q9CZU6",
  "protein_name": "Citrate synthase, mitochondrial",
  "measured_mz": 1127.6693115,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1127.65716,
  "ppm_error": 10.78,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 728,
  "peptide": "ALIAAQYSGAQVR",
  "proforma": "ALIAAQYSGAQVR",
  "protein_accession": "Q9D8N0",
  "protein_name": "Elongation factor 1-gamma",
  "measured_mz": 1347.7327881,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1347.73792,
  "ppm_error": -3.81,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 876,
  "peptide": "ALLLLCGEDD",
  "proforma": "ALLLLCGEDD",
  "protein_accession": "P08758",
  "protein_name": "Annexin A5",
  "measured_mz": 1061.51829,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1061.51834,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1069,
  "peptide": "ALSTGEKGFGYK",
  "proforma": "ALSTGEKGFGYK",
  "protein_accession": "P62937",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase A",
  "measured_mz": 1257.64732,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1257.64738,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 729,
  "peptide": "ALVFVDNHDNQR",
  "proforma": "ALVFVDNHDNQR",
  "protein_accession": "P04746",
  "protein_name": "Pancreatic alpha-amylase",
  "measured_mz": 1427.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1427.7026,
  "ppm_error": -1.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1070,
  "peptide": "ALVKEQGDR",
  "proforma": "ALVKEQGDR",
  "protein_accession": "Q9BR76",
  "protein_name": "Coronin-1B",
  "measured_mz": 1015.55303,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1015.55308,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 730,
  "peptide": "ALVNFVDNHDNQR",
  "proforma": "ALVNFVDNHDNQR",
  "protein_accession": "P04746",
  "protein_name": "Pancreatic alpha-amylase",
  "measured_mz": 1427.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1541.74553,
  "ppm_error": -73971.69,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "review",
  "flags": "mass_mismatch;not_in_protein"
 },
 {
  "observation_id": 731,
  "peptide": "AMGIMNSFVNDIFER",
  "proforma": "AMGIMNSFVNDIFER",
  "protein_accession": "P33778",
  "protein_name": "Histone H2B type 1-B",
  "measured_mz": 1743.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1743.81929,
  "ppm_error": -11.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 732,
  "peptide": "AMGIMNSFVNDIFER",
  "proforma": "[Oxidation]^2?AMGIMNSFVNDIFER",
  "protein_accession": "P33778",
  "protein_name": "Histone H2B type 1-B",
  "measured_mz": 1775.84,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1775.80912,
  "ppm_error": 17.39,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 733,
  "peptide": "AMGIMNSFVNDIFER",
  "proforma": "[Oxidation]^2?AMGIMNSFVNDIFER",
  "protein_accession": "P33778",
  "protein_name": "Histone H2B type 1-B",
  "measured_mz": 1775.84,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1775.80912,
  "ppm_error": 17.39,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 734,
  "peptide": "AMGIMNSFVNDIFER",
  "proforma": "AM[Oxidation]GIM[Oxidation]NSFVNDIFER",
  "protein_accession": "P33778",
  "protein_name": "Histone H2B type 1-B",
  "measured_mz": 1775.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1775.80912,
  "ppm_error": -5.13,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1071,
  "peptide": "AMSKANSEVAQWR",
  "proforma": "AMSKANSEVAQWR",
  "protein_accession": "P12882",
  "protein_name": "Myosin-1",
  "measured_mz": 1477.72155,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1477.72162,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 877,
  "peptide": "AMTGVEQWPYR",
  "proforma": "AMTGVEQWPYR",
  "protein_accession": "P49368",
  "protein_name": "T-complex protein 1 subunit gamma",
  "measured_mz": 1337.63062,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1337.63068,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 878,
  "peptide": "ANLQIDQINTDLNLER",
  "proforma": "ANLQIDQINTDLNLER",
  "protein_accession": "P35579",
  "protein_name": "Myosin-9",
  "measured_mz": 1869.95,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1869.96648,
  "ppm_error": -8.81,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 879,
  "peptide": "ANSEVAQWR",
  "proforma": "ANSEVAQWR",
  "protein_accession": "P12882",
  "protein_name": "Myosin-1",
  "measured_mz": 1060.51698,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1060.51703,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 735,
  "peptide": "APAPAAPAAAEPQAEAPAAAASSEQSVAVK",
  "proforma": "APAPAAPAAAEPQAEAPAAAASSEQSVAVK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 2729.3608398,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2729.37406,
  "ppm_error": -4.85,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 736,
  "peptide": "APAPAAPAAAEPQAEAPAAAASSEQSVAVKE",
  "proforma": "APAPAAPAAAEPQAEAPAAAASSEQSVAVKE",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 2858.3979492,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2858.41666,
  "ppm_error": -6.54,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 880,
  "peptide": "APDFVFYAPR",
  "proforma": "APDFVFYAPR",
  "protein_accession": "P15311",
  "protein_name": "Ezrin",
  "measured_mz": 1182.59417,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1182.59422,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 881,
  "peptide": "APDFVFYAPR",
  "proforma": "APDFVFYAPR",
  "protein_accession": "P26038",
  "protein_name": "Moesin",
  "measured_mz": 1182.59417,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1182.59422,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 882,
  "peptide": "APDFVFYAPR",
  "proforma": "APDFVFYAPR",
  "protein_accession": "P35241",
  "protein_name": "Radixin",
  "measured_mz": 1182.59417,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1182.59422,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1299,
  "peptide": "APQTQHVSPMR",
  "proforma": "APQTQHVSPMR",
  "protein_accession": "P29692",
  "protein_name": "Elongation factor 1-delta",
  "measured_mz": 1251.6262,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1251.62627,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 689,
  "peptide": "AQEEYVKR",
  "proforma": "AQEEYVKR",
  "protein_accession": "P04075",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 1022.52648,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1022.52654,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 883,
  "peptide": "AQVEQELTTLR",
  "proforma": "AQVEQELTTLR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1287.69024,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1287.69031,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1072,
  "peptide": "AQYDELAR",
  "proforma": "AQYDELAR",
  "protein_accession": "P05783",
  "protein_name": "Keratin, type I cytoskeletal 18",
  "measured_mz": 965.48,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 965.46869,
  "ppm_error": 11.72,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 884,
  "peptide": "AQYEEIANR",
  "proforma": "AQYEEIANR",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 1093.522,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1093.52726,
  "ppm_error": -4.81,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1073,
  "peptide": "ARPAEVGGMQLR",
  "proforma": "ARPAEVGGMQLR",
  "protein_accession": "P33316",
  "protein_name": "Deoxyuridine 5'-triphosphate nucleotidohydrolase, mitochondrial",
  "measured_mz": 1284.68405,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1284.68412,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1037,
  "peptide": "ASCTTNCLAPLAK",
  "proforma": "ASCTTNCLAPLAK",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1292.63366,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1292.63372,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1074,
  "peptide": "ASGQAFELILSPR",
  "proforma": "ASGQAFELILSPR",
  "protein_accession": "P16949",
  "protein_name": "Stathmin",
  "measured_mz": 1388.715,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1388.75324,
  "ppm_error": -27.54,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 737,
  "peptide": "ASQKRPSQRHG",
  "proforma": "[Acetyl]-ASQKRPSQRHG",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1293.82,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1293.67706,
  "ppm_error": 110.49,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1586/14789450.2013.814939",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 738,
  "peptide": "ASQKRPSQRHGSKYLA",
  "proforma": "[Acetyl]-ASQKRPSQRHGSKYLA",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1855.99,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1855.98855,
  "ppm_error": 0.78,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1586/14789450.2013.814939",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1360,
  "peptide": "ASSPGGVYATR",
  "proforma": "ASSPGGVYATR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1065.5323,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1065.53235,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1075,
  "peptide": "ATAPQTQHVSPMR",
  "proforma": "ATAPQTQHVSPMR",
  "protein_accession": "P29692",
  "protein_name": "Elongation factor 1-delta",
  "measured_mz": 1423.71099,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1423.71106,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 739,
  "peptide": "ATLPSPDKLPGFK",
  "proforma": "ATLPSPDKLPGFK",
  "protein_accession": "Q02053",
  "protein_name": "Ubiquitin-like modifier-activating enzyme 1",
  "measured_mz": 1370.7460938,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1370.76783,
  "ppm_error": -15.86,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1076,
  "peptide": "ATSSSSGSLSATGR",
  "proforma": "ATSSSSGSLSATGR",
  "protein_accession": "Q03252",
  "protein_name": "Lamin-B2",
  "measured_mz": 1268.60763,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1268.6077,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 885,
  "peptide": "AVAGNISDPGLQK",
  "proforma": "AVAGNISDPGLQK",
  "protein_accession": "P18206",
  "protein_name": "Vinculin",
  "measured_mz": 1269.67968,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1269.67974,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 741,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 742,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "A5A3E0",
  "protein_name": "POTE ankyrin domain family member F",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 743,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P62736",
  "protein_name": "Actin, aortic smooth muscle",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 744,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P0CG38",
  "protein_name": "POTE ankyrin domain family member I",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 745,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P63267",
  "protein_name": "Actin, gamma-enteric smooth muscle",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 746,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P60710",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1198.7061,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 0.5,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 747,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P60710",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1198.7047119,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": -0.66,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 748,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P62737",
  "protein_name": "Actin, aortic smooth muscle",
  "measured_mz": 1198.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": -4.59,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 749,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 750,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P68032",
  "protein_name": "Actin, alpha cardiac muscle 1",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 751,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P68133",
  "protein_name": "Actin, alpha skeletal muscle",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 752,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "Q6S8J3",
  "protein_name": "POTE ankyrin domain family member E",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 753,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "Q9BYX7",
  "protein_name": "Putative beta-actin-like protein 3",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 3.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 754,
  "peptide": "AVFPSIVGRPR",
  "proforma": "AVFPSIVGRPR",
  "protein_accession": "P62736",
  "protein_name": "Actin, aortic smooth muscle",
  "measured_mz": 1198.72,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.7055,
  "ppm_error": 12.09,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 755,
  "peptide": "AVFVDLEPTVIDEVR",
  "proforma": "AVFVDLEPTVIDEVR",
  "protein_accession": "P68369",
  "protein_name": "Tubulin alpha-1A chain",
  "measured_mz": 1701.9051514,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1701.90578,
  "ppm_error": -0.37,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 756,
  "peptide": "AVFVDLEPTVIDEVR",
  "proforma": "AVFVDLEPTVIDEVR",
  "protein_accession": "P68370",
  "protein_name": "Tubulin alpha-1A chain",
  "measured_mz": 1701.92,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1701.90578,
  "ppm_error": 8.36,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac901043n",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1077,
  "peptide": "AVFVDLEPTVIDEVR",
  "proforma": "AVFVDLEPTVIDEVR",
  "protein_accession": "Q71U36",
  "protein_name": "Tubulin alpha-1A chain",
  "measured_mz": 1701.8616,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1701.90578,
  "ppm_error": -25.96,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 886,
  "peptide": "AVGKEELGKNINADEAAAMGAVYQAAALSK",
  "proforma": "AVGKEELGKNINADEAAAMGAVYQAAALSK",
  "protein_accession": "Q9Y4L1",
  "protein_name": "Hypoxia up-regulated protein 1",
  "measured_mz": 2990.52501,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2990.52516,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1078,
  "peptide": "AVLVDLEPGTMDSVR",
  "proforma": "AVLVDLEPGTMDSVR",
  "protein_accession": "P68371",
  "protein_name": "Tubulin beta-4B chain",
  "measured_mz": 1601.8101,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1601.82033,
  "ppm_error": -6.39,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1079,
  "peptide": "AWGPGLHGGIVGR",
  "proforma": "AWGPGLHGGIVGR",
  "protein_accession": "O75369",
  "protein_name": "Filamin-B",
  "measured_mz": 1276.69085,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1276.69092,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 757,
  "peptide": "AYLTVLADQATPTNR",
  "proforma": "AYLTVLADQATPTNR",
  "protein_accession": "Q810U3",
  "protein_name": "Neurofascin",
  "measured_mz": 1633.8430176,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1633.85441,
  "ppm_error": -6.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1080,
  "peptide": "AYQKQPTIFQNK",
  "proforma": "AYQKQPTIFQNK",
  "protein_accession": "P62280",
  "protein_name": "Small ribosomal subunit protein uS17",
  "measured_mz": 1465.77972,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1465.77979,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 887,
  "peptide": "DAEAWFTSR",
  "proforma": "DAEAWFTSR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1082.5175,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1082.49015,
  "ppm_error": 25.27,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 691,
  "peptide": "DAPEEEDHVLVLR",
  "proforma": "DAPEEEDHVLVLR",
  "protein_accession": "P07237",
  "protein_name": "Protein disulfide-isomerase",
  "measured_mz": 1521.75429,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1521.75436,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 758,
  "peptide": "DENPVVHFFKNIVTP",
  "proforma": "DENPVVHFFKNIVTP",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1756.01,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1755.90645,
  "ppm_error": 58.97,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1586/14789450.2013.814939",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 888,
  "peptide": "DGADFAKWR",
  "proforma": "DGADFAKWR",
  "protein_accession": "P04075",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 1065.51117,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1065.51122,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 759,
  "peptide": "DGAELPDPDR",
  "proforma": "DGAELPDPDR",
  "protein_accession": "Q8BLQ9",
  "protein_name": "Cell adhesion molecule 2",
  "measured_mz": 1084.5004883,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1084.49054,
  "ppm_error": 9.17,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 760,
  "peptide": "DGEAGAQGPPGPAGPAGER",
  "proforma": "DGEAGAQGPPGPAGPAGER",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1690.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1690.77795,
  "ppm_error": 1.21,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 761,
  "peptide": "DGEAGAQGPPGPAGPAGER",
  "proforma": "[Oxidation]?DGEAGAQGPPGPAGPAGER",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1706.75,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1706.77287,
  "ppm_error": -13.4,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 762,
  "peptide": "DGLNGLPGPIGPPGPR",
  "proforma": "[Oxidation]^3?DGLNGLPGPIGPPGPR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1561.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1561.7969,
  "ppm_error": -10.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 763,
  "peptide": "DGNPGNDGPPGR",
  "proforma": "[Oxidation]^2?DGNPGNDGPPGR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1184.49,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1184.49267,
  "ppm_error": -2.25,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 764,
  "peptide": "DGSVAIASKPR",
  "proforma": "DGSVAIASKPR",
  "protein_accession": "Q9D0K2",
  "protein_name": "Succinyl-CoA:3-ketoacid coenzyme A transferase 1, mitochondrial",
  "measured_mz": 1100.6008301,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1100.60585,
  "ppm_error": -4.56,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1082,
  "peptide": "DHPLPEVAHVK",
  "proforma": "DHPLPEVAHVK",
  "protein_accession": "P13073",
  "protein_name": "Cytochrome c oxidase subunit 4 isoform 1, mitochondrial",
  "measured_mz": 1241.66364,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1241.6637,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 765,
  "peptide": "DISSSLNSLADSNAREFEEESK",
  "proforma": "DISSSLNSLADSNAREFEEESK",
  "protein_accession": "O94776",
  "protein_name": "Metastasis-associated protein MTA2",
  "measured_mz": 2428.2,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2428.11103,
  "ppm_error": 36.64,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 766,
  "peptide": "DLYANTVLSGGTTMYPGIADR",
  "proforma": "DLYANTVLSGGTTMYPGIADR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 2215.08,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2215.06996,
  "ppm_error": 4.53,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 767,
  "peptide": "DLYANTVLSGGTTMYPGIADR",
  "proforma": "DLYANTVLSGGTTMYPGIADR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 2215.1,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2215.06996,
  "ppm_error": 13.56,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 889,
  "peptide": "DLYANTVLSGGTTMYPGIADR",
  "proforma": "DLYANTVLSGGTTMYPGIADR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 2215.0,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2215.06996,
  "ppm_error": -31.58,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 768,
  "peptide": "DNHLLGTFDLTGIPPAPR",
  "proforma": "DNHLLGTFDLTGIPPAPR",
  "protein_accession": "P11021",
  "protein_name": "Endoplasmic reticulum chaperone BiP",
  "measured_mz": 1934.0,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1934.01304,
  "ppm_error": -6.74,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 769,
  "peptide": "DNIQGITKPAIR",
  "proforma": "DNIQGITKPAIR",
  "protein_accession": "P62805",
  "protein_name": "Histone H4",
  "measured_mz": 1325.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1325.75357,
  "ppm_error": -40.41,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 770,
  "peptide": "DNIQGITKPAIR",
  "proforma": "DNIQGITKPAIR",
  "protein_accession": "P62806",
  "protein_name": "Histone H4",
  "measured_mz": 1325.7529297,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1325.75357,
  "ppm_error": -0.49,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1084,
  "peptide": "DNIQGITKPAIR",
  "proforma": "DNIQGITKPAIR",
  "protein_accession": "P62805",
  "protein_name": "Histone H4",
  "measured_mz": 1325.7233,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1325.75357,
  "ppm_error": -22.84,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1085,
  "peptide": "DNLAEDIMR",
  "proforma": "DNLAEDIMR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1076.50403,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1076.50409,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 771,
  "peptide": "DPFLNPDLMK",
  "proforma": "DPFLNPDLM[Oxidation]K",
  "protein_accession": "Q9JMF3",
  "protein_name": "Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-13",
  "measured_mz": 1205.5888672,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1205.58709,
  "ppm_error": 1.48,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 890,
  "peptide": "DQITAGNAAR",
  "proforma": "DQITAGNAAR",
  "protein_accession": "P22234",
  "protein_name": "Bifunctional phosphoribosylaminoimidazole carboxylase/phosphoribosylaminoimidazole succinocarboxamide synthetase",
  "measured_mz": 1016.51189,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1016.51195,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 772,
  "peptide": "DSGSSSVFAESPGGK",
  "proforma": "DSGSSSVFAESPGGK",
  "protein_accession": "Q9QWI6",
  "protein_name": "SRC kinase signaling inhibitor 1",
  "measured_mz": 1411.6522217,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1411.63358,
  "ppm_error": 13.21,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 773,
  "peptide": "DSQFSYAVFGPR",
  "proforma": "DSQFSYAVFGPR",
  "protein_accession": "Q8R366",
  "protein_name": "Immunoglobulin superfamily member 8",
  "measured_mz": 1373.630249,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1373.64844,
  "ppm_error": -13.24,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 891,
  "peptide": "DSYVGDEAQSK",
  "proforma": "DSYVGDEAQSK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1198.52218,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.52224,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 892,
  "peptide": "DSYVGDEAQSK",
  "proforma": "DSYVGDEAQSK",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1198.52218,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1198.52224,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 893,
  "peptide": "DSYVGDEAQSKR",
  "proforma": "DSYVGDEAQSKR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1354.62328,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1354.62335,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 894,
  "peptide": "DSYVGDEAQSKR",
  "proforma": "DSYVGDEAQSKR",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1354.62328,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1354.62335,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 774,
  "peptide": "DTDGVLETDDTGIAPGSPR",
  "proforma": "DTDGVLETDDTGIAPGSPR",
  "protein_accession": "B9EKR1",
  "protein_name": "Receptor-type tyrosine-protein phosphatase zeta",
  "measured_mz": 1915.9074707,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1915.88796,
  "ppm_error": 10.19,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 775,
  "peptide": "DTENSPTTSANLK",
  "proforma": "DTENSPTTSANLK",
  "protein_accession": "Q80YN3",
  "protein_name": "Breast carcinoma-amplified sequence 1 homolog",
  "measured_mz": 1377.6629639,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1377.64923,
  "ppm_error": 9.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 776,
  "peptide": "DTGILDSIGR",
  "proforma": "DTGILDSIGR",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1046.5477,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1046.54766,
  "ppm_error": 0.03,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 895,
  "peptide": "DVFLGMFLYEYAR",
  "proforma": "DVFLGMFLYEYAR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1623.771,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1623.78758,
  "ppm_error": -10.21,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 896,
  "peptide": "DVFLGMFLYEYAR",
  "proforma": "[Oxidation]?DVFLGMFLYEYAR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1639.76,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1639.78249,
  "ppm_error": -13.72,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1086,
  "peptide": "DVWGIEGPIDAAFTR",
  "proforma": "DVWGIEGPIDAAFTR",
  "protein_accession": "P04004",
  "protein_name": "Vitronectin",
  "measured_mz": 1646.8475,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1646.8173,
  "ppm_error": 18.34,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1087,
  "peptide": "DWHGVPGQVDAAMAGR",
  "proforma": "DWHGVPGQVDAAMAGR",
  "protein_accession": "P04004",
  "protein_name": "Vitronectin",
  "measured_mz": 1666.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1666.77545,
  "ppm_error": 2.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1088,
  "peptide": "DYGVLLEGSGLALR",
  "proforma": "DYGVLLEGSGLALR",
  "protein_accession": "P30048",
  "protein_name": "Thioredoxin-dependent peroxide reductase, mitochondrial",
  "measured_mz": 1462.78995,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1462.79002,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1089,
  "peptide": "DYSHYYTTIQDLR",
  "proforma": "DYSHYYTTIQDLR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1674.8083,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1674.77583,
  "ppm_error": 19.39,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 777,
  "peptide": "EAEAQAAMEANSEGSLTRPK",
  "proforma": "EAEAQAAM[Oxidation]EANSEGSLTRPK",
  "protein_accession": "P63040",
  "protein_name": "Complexin-1",
  "measured_mz": 2105.9748535,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2105.97679,
  "ppm_error": -0.92,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 778,
  "peptide": "EAEAQAAMEANSEGSLTRPK",
  "proforma": "EAEAQAAMEANSEGSLTRPK",
  "protein_accession": "P63040",
  "protein_name": "Complexin-1",
  "measured_mz": 2089.9848633,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2089.98187,
  "ppm_error": 1.43,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 897,
  "peptide": "EAIEGTYIDKK",
  "proforma": "EAIEGTYIDKK",
  "protein_accession": "P62280",
  "protein_name": "Small ribosomal subunit protein uS17",
  "measured_mz": 1266.65755,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1266.65761,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 898,
  "peptide": "EDGGGWWYNR",
  "proforma": "EDGGGWWYNR",
  "protein_accession": "P02675",
  "protein_name": "Fibrinogen beta chain",
  "measured_mz": 1239.53,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1239.51776,
  "ppm_error": 9.87,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 779,
  "peptide": "EDPLLTPVPASENPFR",
  "proforma": "EDPLLTPVPASENPFR",
  "protein_accession": "P63213",
  "protein_name": "Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2",
  "measured_mz": 1781.9013672,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1781.90684,
  "ppm_error": -3.07,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1090,
  "peptide": "EEAPSLRPAPPPISGGGYR",
  "proforma": "EEAPSLRPAPPPISGGGYR",
  "protein_accession": "P02675",
  "protein_name": "Fibrinogen beta chain",
  "measured_mz": 1950.975,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1951.0032,
  "ppm_error": -14.45,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 780,
  "peptide": "EEAQMEVEQYR",
  "proforma": "EEAQMEVEQYR",
  "protein_accession": "Q9WTT4",
  "protein_name": "V-type proton ATPase subunit G 2",
  "measured_mz": 1411.6176758,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1411.61582,
  "ppm_error": 1.31,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 781,
  "peptide": "EEEEEELVDPLTTVR",
  "proforma": "EEEEEELVDPLTTVR",
  "protein_accession": "P99028",
  "protein_name": "Cytochrome b-c1 complex subunit 6, mitochondrial",
  "measured_mz": 1787.8535156,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1787.85453,
  "ppm_error": -0.57,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 782,
  "peptide": "EEEPSVEEALSK",
  "proforma": "EEEPSVEEALSK",
  "protein_accession": "Q9QYB8",
  "protein_name": "Beta-adducin",
  "measured_mz": 1346.6367188,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1346.63218,
  "ppm_error": 3.37,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 783,
  "peptide": "EEMVRELR",
  "proforma": "EEM[Oxidation]VRELR",
  "protein_accession": "O89110",
  "protein_name": "Caspase-8",
  "measured_mz": 1077.5358,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1077.53572,
  "ppm_error": 0.07,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 784,
  "peptide": "EEVLEEGAK",
  "proforma": "EEVLEEGAK",
  "protein_accession": "Q9QYR6",
  "protein_name": "Microtubule-associated protein 1A",
  "measured_mz": 1003.484436,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1003.49423,
  "ppm_error": -9.76,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 899,
  "peptide": "EFQLFSSPHGK",
  "proforma": "EFQLFSSPHGK",
  "protein_accession": "P02787",
  "protein_name": "Serotransferrin",
  "measured_mz": 1276.632,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1276.63206,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 785,
  "peptide": "EGDGSATTDAAPATSPK",
  "proforma": "EGDGSATTDAAPATSPK",
  "protein_accession": "P06837",
  "protein_name": "Neuromodulin",
  "measured_mz": 1575.7142334,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1575.71329,
  "ppm_error": 0.6,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 900,
  "peptide": "EGDLIAAQAR",
  "proforma": "EGDLIAAQAR",
  "protein_accession": "P02545",
  "protein_name": "Prelamin-A/C",
  "measured_mz": 1043.54794,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1043.548,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1091,
  "peptide": "EGELTVAQGR",
  "proforma": "EGELTVAQGR",
  "protein_accession": "Q03252",
  "protein_name": "Lamin-B2",
  "measured_mz": 1059.54286,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1059.54291,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 786,
  "peptide": "EGMNIVEAMER",
  "proforma": "EGMNIVEAMER",
  "protein_accession": "P17742",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase A",
  "measured_mz": 1278.5582275,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1278.58168,
  "ppm_error": -18.35,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1092,
  "peptide": "ELPPDQAEYCIAR",
  "proforma": "ELPPDQAEYCIAR",
  "protein_accession": "P12814",
  "protein_name": "Alpha-actinin-1",
  "measured_mz": 1504.70998,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1504.71006,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1093,
  "peptide": "ELSDFISYLQR",
  "proforma": "ELSDFISYLQR",
  "protein_accession": "P30101",
  "protein_name": "Protein disulfide-isomerase A3",
  "measured_mz": 1370.7358,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1370.69506,
  "ppm_error": 29.72,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 787,
  "peptide": "ELSDIAHR",
  "proforma": "ELSDIAHR",
  "protein_accession": "P05064",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 940.4847412,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 940.48467,
  "ppm_error": 0.08,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1094,
  "peptide": "EQEITAVQAR",
  "proforma": "EQEITAVQAR",
  "protein_accession": "Q9P2E9",
  "protein_name": "Ribosome-binding protein 1",
  "measured_mz": 1144.59562,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1144.59568,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 788,
  "peptide": "ESEPQAAADATEVK",
  "proforma": "ESEPQAAADATEVK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 1445.6728516,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1445.67544,
  "ppm_error": -1.79,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 789,
  "peptide": "ESEPQAAADATEVKESTEEKPK",
  "proforma": "ESEPQAAADATEVKESTEEKPK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 2374.1235352,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2374.12562,
  "ppm_error": -0.88,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 901,
  "peptide": "ETIEQEKQAGES",
  "proforma": "ETIEQEKQAGES",
  "protein_accession": "P62328",
  "protein_name": "Thymosin beta-4",
  "measured_mz": 1348.62261,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1348.62268,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1095,
  "peptide": "EVTINQSLLAPLR",
  "proforma": "EVTINQSLLAPLR",
  "protein_accession": "P08729",
  "protein_name": "Keratin, type II cytoskeletal 7",
  "measured_mz": 1453.8199,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1453.8373,
  "ppm_error": -11.97,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 790,
  "peptide": "FASFIER",
  "proforma": "FASFIER",
  "protein_accession": "P08551",
  "protein_name": "Neurofilament light polypeptide",
  "measured_mz": 869.456665,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 869.45158,
  "ppm_error": 5.85,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 791,
  "peptide": "FDAFTTGFGHS",
  "proforma": "FDAFTTGFGHS",
  "protein_accession": "Q9NL82",
  "protein_name": "Orcokinin peptides type B",
  "measured_mz": 1186.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1186.51636,
  "ppm_error": -13.79,
  "species": "Procambarus clarkii",
  "taxon_id": 6728,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1096,
  "peptide": "FDAMPFTLR",
  "proforma": "FDAMPFTLR",
  "protein_accession": "Q9UQ80",
  "protein_name": "Proliferation-associated protein 2G4",
  "measured_mz": 1097.54478,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1097.54483,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 902,
  "peptide": "FDGILGMAYPR",
  "proforma": "FDGILGMAYPR",
  "protein_accession": "P07339",
  "protein_name": "Cathepsin D",
  "measured_mz": 1239.619,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1239.61906,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1097,
  "peptide": "FGAQLAHIQALISGIEAQLGDVR",
  "proforma": "FGAQLAHIQALISGIEAQLGDVR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 2407.2258,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2407.30922,
  "ppm_error": -34.65,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 792,
  "peptide": "FGTALSNR",
  "proforma": "FGTALSNR",
  "protein_accession": "Q810U3",
  "protein_name": "Neurofascin",
  "measured_mz": 865.4438477,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 865.45264,
  "ppm_error": -10.16,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 903,
  "peptide": "FGVEQDVDMVFASFIR",
  "proforma": "FGVEQDVDMVFASFIR",
  "protein_accession": "P14618",
  "protein_name": "Pyruvate kinase PKM",
  "measured_mz": 1859.87,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1859.89965,
  "ppm_error": -15.94,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 793,
  "peptide": "FIWYNNVINPTLPR",
  "proforma": "FIWYNNVINPTLPR",
  "protein_accession": "P16233",
  "protein_name": "Pancreatic triacylglycerol lipase",
  "measured_mz": 1746.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1746.9326,
  "ppm_error": -18.66,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1098,
  "peptide": "FLEQQNQVLQTK",
  "proforma": "FLEQQNQVLQTK",
  "protein_accession": "P35908",
  "protein_name": "Keratin, type II cytoskeletal 2 epidermal",
  "measured_mz": 1475.76,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1475.78527,
  "ppm_error": -17.12,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 796,
  "peptide": "FMTILRR",
  "proforma": "[Oxidation]?FMTILRR",
  "protein_accession": "Q9ULD0",
  "protein_name": "2-oxoglutarate dehydrogenase-like, mitochondrial",
  "measured_mz": 952.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 952.53968,
  "ppm_error": -41.66,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 797,
  "peptide": "FNALQYLR",
  "proforma": "FNALQYLR",
  "protein_accession": "P51884",
  "protein_name": "Lumican",
  "measured_mz": 1024.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1024.55744,
  "ppm_error": 41.54,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1099,
  "peptide": "FPGQLNADLR",
  "proforma": "FPGQLNADLR",
  "protein_accession": "P07437",
  "protein_name": "Tubulin beta chain",
  "measured_mz": 1130.6021,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1130.59528,
  "ppm_error": 6.03,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1100,
  "peptide": "FPGQLNADLR",
  "proforma": "FPGQLNADLR",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1130.6021,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1130.59528,
  "ppm_error": 6.03,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1340,
  "peptide": "FPSIVGRPR",
  "proforma": "FPSIVGRPR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1028.59992,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1028.59997,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1341,
  "peptide": "FPSIVGRPR",
  "proforma": "FPSIVGRPR",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1028.59992,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1028.59997,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1342,
  "peptide": "FPSIVGRPR",
  "proforma": "FPSIVGRPR",
  "protein_accession": "Q9BYX7",
  "protein_name": "Putative beta-actin-like protein 3",
  "measured_mz": 1028.59992,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1028.59997,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 904,
  "peptide": "FQDGDLTLYQSNTILR",
  "proforma": "FQDGDLTLYQSNTILR",
  "protein_accession": "P09211",
  "protein_name": "Glutathione S-transferase P",
  "measured_mz": 1883.939,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1883.94977,
  "ppm_error": -5.72,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1101,
  "peptide": "FRTEAAAAAPQR",
  "proforma": "FRTEAAAAAPQR",
  "protein_accession": "O95817",
  "protein_name": "BAG family molecular chaperone regulator 3",
  "measured_mz": 1288.67559,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1288.67566,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1102,
  "peptide": "FRYLMGER",
  "proforma": "FRYLMGER",
  "protein_accession": "P00338",
  "protein_name": "L-lactate dehydrogenase A chain",
  "measured_mz": 1071.54036,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1071.54041,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1103,
  "peptide": "FVFSLVDAMNGK",
  "proforma": "FVFSLVDAMNGK",
  "protein_accession": "P40926",
  "protein_name": "Malate dehydrogenase, mitochondrial",
  "measured_mz": 1327.67142,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1327.67149,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 798,
  "peptide": "FVTVQTISGTGALR",
  "proforma": "FVTVQTISGTGALR",
  "protein_accession": "P05202",
  "protein_name": "Aspartate aminotransferase, mitochondrial",
  "measured_mz": 1449.7930908,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1449.806,
  "ppm_error": -8.91,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 905,
  "peptide": "FYEEVHDLER",
  "proforma": "FYEEVHDLER",
  "protein_accession": "P55209",
  "protein_name": "Nucleosome assembly protein 1-like 1",
  "measured_mz": 1336.61674,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1336.61681,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 906,
  "peptide": "FYEEVHDLERK",
  "proforma": "FYEEVHDLERK",
  "protein_accession": "P55209",
  "protein_name": "Nucleosome assembly protein 1-like 1",
  "measured_mz": 1464.7117,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1464.71177,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 799,
  "peptide": "FYSVNVDYSK",
  "proforma": "FYSVNVDYSK",
  "protein_accession": "Q62425",
  "protein_name": "Cytochrome c oxidase subunit FA4",
  "measured_mz": 1221.5629883,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1221.57863,
  "ppm_error": -12.8,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 800,
  "peptide": "GAAQNIIPASTGAAK",
  "proforma": "GAAQNIIPASTGAAK",
  "protein_accession": "P16858",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1369.7421875,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1369.7434,
  "ppm_error": -0.89,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1104,
  "peptide": "GAKAEEILEK",
  "proforma": "GAKAEEILEK",
  "protein_accession": "P62913",
  "protein_name": "Large ribosomal subunit protein uL5",
  "measured_mz": 1087.59931,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1087.59937,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1105,
  "peptide": "GALSLQGSIMTVGEK",
  "proforma": "[Oxidation]?GALSLQGSIMTVGEK",
  "protein_accession": "Q8IWL2",
  "protein_name": "Pulmonary surfactant-associated protein A1",
  "measured_mz": 1506.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1506.78322,
  "ppm_error": 11.14,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 801,
  "peptide": "GAPGDRGEPGPPGPAGFAGPPGADGQPGAK",
  "proforma": "[Oxidation]^4?GAPGDRGEPGPPGPAGFAGPPGADGQPGAK",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2703.23,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2703.23936,
  "ppm_error": -3.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1106,
  "peptide": "GATQQILDEAER",
  "proforma": "GATQQILDEAER",
  "protein_accession": "P78371",
  "protein_name": "T-complex protein 1 subunit beta",
  "measured_mz": 1330.65967,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1330.65973,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1107,
  "peptide": "GAVQSGVDKTK",
  "proforma": "GAVQSGVDKTK",
  "protein_accession": "O60664",
  "protein_name": "Perilipin-3",
  "measured_mz": 1089.58981,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1089.58986,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1108,
  "peptide": "GCTATLGNFAK",
  "proforma": "GCTATLGNFAK",
  "protein_accession": "P15880",
  "protein_name": "Small ribosomal subunit protein uS5",
  "measured_mz": 1082.52985,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1082.52991,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 802,
  "peptide": "GDAGAPGAPGSQGAPGLQGMPGER",
  "proforma": "[Oxidation]^4?GDAGAPGAPGSQGAPGLQGMPGER",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2198.99,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2198.9731,
  "ppm_error": 7.69,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 803,
  "peptide": "GDGGPPGMTGFPGAAGR",
  "proforma": "[Oxidation]^2?GDGGPPGMTGFPGAAGR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1533.719,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1533.67507,
  "ppm_error": 28.65,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 804,
  "peptide": "GDVTAEEAAGASPAK",
  "proforma": "GDVTAEEAAGASPAK",
  "protein_accession": "P28667",
  "protein_name": "MARCKS-related protein",
  "measured_mz": 1373.630249,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1373.65431,
  "ppm_error": -17.52,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 805,
  "peptide": "GENGVVGPTGPVGAAGPAGPNGPPGPAGSR",
  "proforma": "[Oxidation]?GENGVVGPTGPVGAAGPAGPNGPPGPAGSR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 2567.22,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2567.2597,
  "ppm_error": -15.47,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 806,
  "peptide": "GEPGPTGLPGPPGER",
  "proforma": "[Oxidation]^3?GEPGPTGLPGPPGER",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1465.69,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1465.69176,
  "ppm_error": -1.2,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 807,
  "peptide": "GEPGPVGVQGPPGPAGEEGKR",
  "proforma": "[Oxidation]^2?GEPGPVGVQGPPGPAGEEGKR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2003.95,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2003.97811,
  "ppm_error": -14.03,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 808,
  "peptide": "GEPGSPGENGAPGQMGPR",
  "proforma": "[Oxidation][Oxidation]^2?GEPGSPGENGAPGQMGPR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1742.77,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1742.73985,
  "ppm_error": 17.3,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 809,
  "peptide": "GEQGPAGPPGFQGLPGPSGPAGEVGKPGER",
  "proforma": "[Oxidation]^3?GEQGPAGPPGFQGLPGPSGPAGEVGKPGER",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 2832.33,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2832.35473,
  "ppm_error": -8.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "review",
  "flags": "reported_theoretical_differs;not_in_protein"
 },
 {
  "observation_id": 810,
  "peptide": "GESGPSGPAGPTGAR",
  "proforma": "GESGPSGPAGPTGAR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1297.62,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1297.61312,
  "ppm_error": 5.3,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 811,
  "peptide": "GETGPAGPAGPVGPVGAR",
  "proforma": "GETGPAGPAGPVGPVGAR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1546.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1546.79723,
  "ppm_error": -11.14,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 812,
  "peptide": "GETGPSGPVGPAGAVGPR",
  "proforma": "GETGPSGPVGPAGAVGPR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1562.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1562.79215,
  "ppm_error": -7.77,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 813,
  "peptide": "GETGPSGPVGPAGAVGPR",
  "proforma": "GETGPSGPVGPAGAVGPR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1562.804,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1562.79215,
  "ppm_error": 7.59,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 814,
  "peptide": "GFPGADGVAGPK",
  "proforma": "[Oxidation]?GFPGADGVAGPK",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1088.56,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1088.5371,
  "ppm_error": 21.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 815,
  "peptide": "GFPGADGVAGPKGPAGER",
  "proforma": "[Oxidation]?GFPGADGVAGPKGPAGER",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1655.823,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1655.81361,
  "ppm_error": 5.67,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 816,
  "peptide": "GFSGLQGPPGPPGSPGEQGPSGASGPAGPR",
  "proforma": "[Oxidation]^3?GFSGLQGPPGPPGSPGEQGPSGASGPAGPR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2705.26,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2705.25501,
  "ppm_error": 1.84,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 817,
  "peptide": "GFSGLQGPPGPPGSPGEQGPSGASGPAGPR",
  "proforma": "[Oxidation]^3?GFSGLQGPPGPPGSPGEQGPSGASGPAGPR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2705.29,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2705.25501,
  "ppm_error": 12.93,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1109,
  "peptide": "GGAEGELQALR",
  "proforma": "GGAEGELQALR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1100.56941,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1100.56946,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1110,
  "peptide": "GGGGNFGPGPGSNFR",
  "proforma": "GGGGNFGPGPGSNFR",
  "protein_accession": "P22626",
  "protein_name": "Heterogeneous nuclear ribonucleoproteins A2/B1",
  "measured_mz": 1377.62,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1377.62944,
  "ppm_error": -6.85,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 818,
  "peptide": "GGHGAEYGAEALER",
  "proforma": "GGHGAEYGAEALER",
  "protein_accession": "P01942",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1416.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1416.65023,
  "ppm_error": 35.13,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1111,
  "peptide": "GGSLLAGGGGFGGGSLSGGGGSR",
  "proforma": "GGSLLAGGGGFGGGSLSGGGGSR",
  "protein_accession": "P19012",
  "protein_name": "Keratin, type I cytoskeletal 15",
  "measured_mz": 1821.8787,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1821.88381,
  "ppm_error": -2.81,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1282,
  "peptide": "GIHETTFNSIMK",
  "proforma": "GIHETTFNSIMK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1377.68305,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1377.68311,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1283,
  "peptide": "GIHETTFNSIMK",
  "proforma": "GIHETTFNSIMK",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1377.68305,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1377.68311,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1284,
  "peptide": "GIHETTFNSIMK",
  "proforma": "GIHETTFNSIMK",
  "protein_accession": "Q562R1",
  "protein_name": "Beta-actin-like protein 2",
  "measured_mz": 1377.68305,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1377.68311,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 819,
  "peptide": "GIPGPVGAAGATGAR",
  "proforma": "[Oxidation]?GIPGPVGAAGATGAR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1267.67,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1267.67532,
  "ppm_error": -4.2,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 820,
  "peptide": "GIVDQSQQAYQEAFEISKK",
  "proforma": "GIVDQSQQAYQEAFEISKK",
  "protein_accession": "P63101",
  "protein_name": "14-3-3 protein zeta/delta",
  "measured_mz": 2169.0793457,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2169.08224,
  "ppm_error": -1.33,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1112,
  "peptide": "GLFIIDGKGVLR",
  "proforma": "GLFIIDGKGVLR",
  "protein_accession": "P32119",
  "protein_name": "Peroxiredoxin-2",
  "measured_mz": 1287.77827,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1287.77833,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 908,
  "peptide": "GLGTDEDTLIEILASR",
  "proforma": "GLGTDEDTLIEILASR",
  "protein_accession": "P04083",
  "protein_name": "Annexin A1",
  "measured_mz": 1702.8875,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1702.88577,
  "ppm_error": 1.02,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1113,
  "peptide": "GLGVGFGSGGGSSSSVK",
  "proforma": "GLGVGFGSGGGSSSSVK",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 1439.7126,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1439.7125,
  "ppm_error": 0.07,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 821,
  "peptide": "GLHGEFGLPGPAGPR",
  "proforma": "[Oxidation]^2?GLHGEFGLPGPAGPR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1493.771,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1493.74955,
  "ppm_error": 14.36,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 822,
  "peptide": "GLHGEFGLPGPAGPR",
  "proforma": "[Oxidation]?GLHGEFGLPGPAGPR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1477.73,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1477.75464,
  "ppm_error": -16.67,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 909,
  "peptide": "GLIDEVNQDFTNR",
  "proforma": "GLIDEVNQDFTNR",
  "protein_accession": "P02671",
  "protein_name": "Fibrinogen alpha chain",
  "measured_mz": 1520.7173,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1520.73396,
  "ppm_error": -10.96,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 823,
  "peptide": "GLTGPIGPPGPAGAPGDKGESGPSGPAGPTGAR",
  "proforma": "[Oxidation]^2?GLTGPIGPPGPAGAPGDKGESGPSGPAGPTGAR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2869.418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2869.40749,
  "ppm_error": 3.66,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 824,
  "peptide": "GLTGPIGPPGPAGAPGDKGESGPSGPAGPTGAR",
  "proforma": "[Oxidation]^2?GLTGPIGPPGPAGAPGDKGESGPSGPAGPTGAR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2869.39,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2869.40749,
  "ppm_error": -6.1,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 825,
  "peptide": "GLTLPCLPWPA",
  "proforma": "[Oxidation]?GLTLPCLPWPA",
  "protein_accession": "Q9Y3S1",
  "protein_name": "Serine/threonine-protein kinase WNK2",
  "measured_mz": 1327.72,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1183.61799,
  "ppm_error": 121747.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "review",
  "flags": "mass_mismatch;reported_theoretical_differs;not_in_protein"
 },
 {
  "observation_id": 826,
  "peptide": "GLTLPCLPWRR",
  "proforma": "[Oxidation]?GLTLPCLPWRR",
  "protein_accession": "Q9Y3S1",
  "protein_name": "Serine/threonine-protein kinase WNK2",
  "measured_mz": 1327.72,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1327.73034,
  "ppm_error": -7.79,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1114,
  "peptide": "GMDKLIVDGR",
  "proforma": "GMDKLIVDGR",
  "protein_accession": "Q99832",
  "protein_name": "T-complex protein 1 subunit eta",
  "measured_mz": 1103.5877,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1103.58776,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1115,
  "peptide": "GMGPGTPAGYGR",
  "proforma": "GMGPGTPAGYGR",
  "protein_accession": "P23246",
  "protein_name": "Splicing factor, proline- and glutamine-rich",
  "measured_mz": 1120.52035,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1120.5204,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1116,
  "peptide": "GMQDLVEDFKNKYEDEINKR",
  "proforma": "GMQDLVEDFKNKYEDEINKR",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 2471.1831,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2471.18711,
  "ppm_error": -1.62,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1117,
  "peptide": "GNDVAFHFNPR",
  "proforma": "GNDVAFHFNPR",
  "protein_accession": "P17931",
  "protein_name": "Galectin-3",
  "measured_mz": 1273.60718,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1273.60725,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1118,
  "peptide": "GNLGAGNGNLQGPR",
  "proforma": "GNLGAGNGNLQGPR",
  "protein_accession": "P43243",
  "protein_name": "Matrin-3",
  "measured_mz": 1324.67157,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1324.67164,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 827,
  "peptide": "GPEPDTIIGYSGEDLPSAPR",
  "proforma": "GPEPDTIIGYSGEDLPSAPR",
  "protein_accession": "Q810U3",
  "protein_name": "Neurofascin",
  "measured_mz": 2071.0065918,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2070.99784,
  "ppm_error": 4.23,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 828,
  "peptide": "GPGDGAEEDESNTGGR",
  "proforma": "GPGDGAEEDESNTGGR",
  "protein_accession": "Q9JKC6",
  "protein_name": "Cell cycle exit and neuronal differentiation protein 1",
  "measured_mz": 1547.618042,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1547.62045,
  "ppm_error": -1.55,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 829,
  "peptide": "GPKGENGVVGPTGPVGAAGPAGPNGPPGPAGSR",
  "proforma": "[Oxidation]^2?GPKGENGVVGPTGPVGAAGPAGPNGPPGPAGSR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 2865.36,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2865.42381,
  "ppm_error": -22.27,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 910,
  "peptide": "GPLMMYISK",
  "proforma": "GPLMMYISK",
  "protein_accession": "P13639",
  "protein_name": "Elongation factor 2",
  "measured_mz": 1039.53144,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1039.53149,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 830,
  "peptide": "GPNGDAGRPGEPGLMGPR",
  "proforma": "[Oxidation]^2?GPNGDAGRPGEPGLMGPR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1766.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1766.82386,
  "ppm_error": -24.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 831,
  "peptide": "GPNGEAGSAGPPGPPGLR",
  "proforma": "[Oxidation]^2?GPNGEAGSAGPPGPPGLR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1619.77,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1619.77722,
  "ppm_error": -4.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 832,
  "peptide": "GPPGAAGAPGPQGFQGPAGEPGEPGQTGPAGAR",
  "proforma": "[Oxidation]^4?GPPGAAGAPGPQGFQGPAGEPGEPGQTGPAGAR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 2959.415,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2959.35652,
  "ppm_error": 19.76,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1120,
  "peptide": "GPPGLPAHLDEELQATLHDFR",
  "proforma": "[Oxidation]?GPPGLPAHLDEELQATLHDFR",
  "protein_accession": "Q8IWL2",
  "protein_name": "Pulmonary surfactant-associated protein A1",
  "measured_mz": 2329.134,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2329.15714,
  "ppm_error": -9.93,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 833,
  "peptide": "GPPGPMGPPGLAGPPGESGR",
  "proforma": "[Oxidation]^2?GPPGPMGPPGLAGPPGESGR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1816.85,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1816.86466,
  "ppm_error": -8.07,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 834,
  "peptide": "GPPGPMGPPGLAGPPGESGR",
  "proforma": "[Oxidation][Oxidation]^2?GPPGPMGPPGLAGPPGESGR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1832.85,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1832.85957,
  "ppm_error": -5.22,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 835,
  "peptide": "GPPGPMGPPGLAGPPGESGR",
  "proforma": "[Oxidation][Oxidation]^3?GPPGPMGPPGLAGPPGESGR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1848.85,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1848.85449,
  "ppm_error": -2.43,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 836,
  "peptide": "GPPGSAGAPGKDGLNGLPGPIGPPGPR",
  "proforma": "[Oxidation]^4?GPPGSAGAPGKDGLNGLPGPIGPPGPR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 2454.23,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2454.23718,
  "ppm_error": -2.92,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 837,
  "peptide": "GPSGPQGPGGPPGPK",
  "proforma": "[Oxidation]?GPSGPQGPGGPPGPK",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1302.63,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1302.64369,
  "ppm_error": -10.51,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 838,
  "peptide": "GPVVSAPLGAAR",
  "proforma": "GPVVSAPLGAAR",
  "protein_accession": "Q7Z624",
  "protein_name": "Calmodulin-lysine N-methyltransferase",
  "measured_mz": 1094.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1094.63167,
  "ppm_error": -28.93,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1121,
  "peptide": "GQAAVQQLQAEGLSPR",
  "proforma": "GQAAVQQLQAEGLSPR",
  "protein_accession": "P16152",
  "protein_name": "Carbonyl reductase [NADPH] 1",
  "measured_mz": 1652.83,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1652.87146,
  "ppm_error": -25.08,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1122,
  "peptide": "GQGSSPVAMQK",
  "proforma": "GQGSSPVAMQK",
  "protein_accession": "P18206",
  "protein_name": "Vinculin",
  "measured_mz": 1089.53566,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1089.53572,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1123,
  "peptide": "GQGSSPVAMQK",
  "proforma": "GQGSSPVAMQK",
  "protein_accession": "P18206",
  "protein_name": "Vinculin",
  "measured_mz": 1089.53566,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1089.53572,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1124,
  "peptide": "GQVGGEINVEMDAAPGVDLSR",
  "proforma": "GQVGGEINVEMDAAPGVDLSR",
  "protein_accession": "Q04695",
  "protein_name": "Keratin, type I cytoskeletal 17",
  "measured_mz": 2114.0249,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2114.01826,
  "ppm_error": 3.14,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 839,
  "peptide": "GSAGPPGATGFPGAAGR",
  "proforma": "[Oxidation]^2?GSAGPPGATGFPGAAGR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1459.711,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1459.69243,
  "ppm_error": 12.72,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 840,
  "peptide": "GSAGPPGATGFPGAAGR",
  "proforma": "[Oxidation]^2?GSAGPPGATGFPGAAGR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1459.68,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1459.69243,
  "ppm_error": -8.52,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 841,
  "peptide": "GSEGPQGVR",
  "proforma": "GSEGPQGVR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 886.44,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 886.43772,
  "ppm_error": 2.57,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 842,
  "peptide": "GSEGPQGVR",
  "proforma": "GSEGPQGVR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 886.44,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 886.43772,
  "ppm_error": 2.57,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 843,
  "peptide": "GSPGEAGRPGEAGLPGAK",
  "proforma": "[Oxidation]^3?GSPGEAGRPGEAGLPGAK",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1655.78,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1655.79835,
  "ppm_error": -11.08,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1125,
  "peptide": "GTGIVSAPVPK",
  "proforma": "GTGIVSAPVPK",
  "protein_accession": "P15880",
  "protein_name": "Small ribosomal subunit protein uS5",
  "measured_mz": 1025.59892,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1025.59897,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 844,
  "peptide": "GVGASGSFR",
  "proforma": "GVGASGSFR",
  "protein_accession": "P10922",
  "protein_name": "Histone H1.0",
  "measured_mz": 837.4222412,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 837.42134,
  "ppm_error": 1.07,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 845,
  "peptide": "GVIDMGNSLIER",
  "proforma": "GVIDMGNSLIER",
  "protein_accession": "P16546",
  "protein_name": "Spectrin alpha chain, non-erythrocytic 1",
  "measured_mz": 1303.6628418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1303.66746,
  "ppm_error": -3.54,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1126,
  "peptide": "GVPQIEVTFEIDVNGILR",
  "proforma": "GVPQIEVTFEIDVNGILR",
  "protein_accession": "P11021",
  "protein_name": "Endoplasmic reticulum chaperone BiP",
  "measured_mz": 1999.077,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1999.08587,
  "ppm_error": -4.44,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 846,
  "peptide": "GVQGPPGPAGPR",
  "proforma": "[Oxidation]?GVQGPPGPAGPR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1105.578,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1105.57488,
  "ppm_error": 2.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 847,
  "peptide": "GVQVETISPGDGR",
  "proforma": "GVQVETISPGDGR",
  "protein_accession": "P26883",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase FKBP1A",
  "measured_mz": 1314.6627197,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1314.66482,
  "ppm_error": -1.6,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 848,
  "peptide": "GVVGLPGQR",
  "proforma": "[Oxidation]?GVVGLPGQR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 898.484,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 898.51049,
  "ppm_error": -29.48,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 849,
  "peptide": "GVVGLPGQR",
  "proforma": "[Oxidation]?GVVGLPGQR",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 898.51,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 898.51049,
  "ppm_error": -0.55,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 850,
  "peptide": "GYRKPPFNGSIF",
  "proforma": "GYRKPPFNGSIF-[Amidated]",
  "protein_accession": "G4V2X8",
  "protein_name": "SIFamide",
  "measured_mz": 1381.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1381.73753,
  "ppm_error": -27.16,
  "species": "Cancer borealis",
  "taxon_id": 39395,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1127,
  "peptide": "HGESAWNLENR",
  "proforma": "HGESAWNLENR",
  "protein_accession": "P18669",
  "protein_name": "Phosphoglycerate mutase 1",
  "measured_mz": 1312.60282,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1312.60289,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 852,
  "peptide": "HGFLPR",
  "proforma": "HGFLPR",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 726.23,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 726.40457,
  "ppm_error": -240.32,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac901043n",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 853,
  "peptide": "HGFLPR",
  "proforma": "HGFLPR",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 726.404,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 726.40457,
  "ppm_error": -0.78,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1128,
  "peptide": "HGGGGGGFGGGGFGSR",
  "proforma": "HGGGGGGFGGGGFGSR",
  "protein_accession": "P35908",
  "protein_name": "Keratin, type II cytoskeletal 2 epidermal",
  "measured_mz": 1320.6698,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1320.58282,
  "ppm_error": 65.86,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1129,
  "peptide": "HIDSAHLYNNEEQVGLAIR",
  "proforma": "HIDSAHLYNNEEQVGLAIR",
  "protein_accession": "Q04828",
  "protein_name": "Aldo-keto reductase family 1 member C1",
  "measured_mz": 2179.075,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2179.08906,
  "ppm_error": -6.45,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 854,
  "peptide": "HLQLAIR",
  "proforma": "HLQLAIR",
  "protein_accession": "P0C0S5",
  "protein_name": "Histone H2A.Z",
  "measured_mz": 850.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 850.52575,
  "ppm_error": -30.27,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 855,
  "peptide": "HLQLAIRNDEELNKLLGK",
  "proforma": "HLQLAIRNDEELNKLLGK",
  "protein_accession": "P0C0S8",
  "protein_name": "Histone H2A type 1",
  "measured_mz": 2104.2,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2104.18731,
  "ppm_error": 6.03,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 856,
  "peptide": "HNEETGDNVGPLIIK",
  "proforma": "HNEETGDNVGPLIIK",
  "protein_accession": "Q91WS0",
  "protein_name": "CDGSH iron-sulfur domain-containing protein 1",
  "measured_mz": 1635.8143311,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1635.83368,
  "ppm_error": -11.83,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 857,
  "peptide": "HPDYSVVLLLR",
  "proforma": "HPDYSVVLLLR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1311.73,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1311.74195,
  "ppm_error": -9.11,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 858,
  "peptide": "HPDYSVVLLLR",
  "proforma": "HPDYSVVLLLR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1311.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1311.74195,
  "ppm_error": -31.98,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 859,
  "peptide": "HQASINELK",
  "proforma": "HQASINELK",
  "protein_accession": "Q9Z2H5",
  "protein_name": "Band 4.1-like protein 1",
  "measured_mz": 1039.5422363,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1039.55308,
  "ppm_error": -10.44,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1132,
  "peptide": "HQGVMVGMGQK",
  "proforma": "HQGVM[Oxidation]VGMGQK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1187.5659,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1187.56597,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1133,
  "peptide": "HQGVMVGMGQK",
  "proforma": "HQGVM[Oxidation]VGMGQK",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1187.5659,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1187.56597,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1134,
  "peptide": "HQGVMVGMGQK",
  "proforma": "HQGVMVGM[Oxidation]GQK",
  "protein_accession": "Q562R1",
  "protein_name": "Beta-actin-like protein 2",
  "measured_mz": 1187.5659,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1187.56597,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 860,
  "peptide": "HRDTGILDSIGR",
  "proforma": "HRDTGILDSIGR",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1339.24,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1339.70769,
  "ppm_error": -349.1,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac901043n",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 861,
  "peptide": "HRDTGILDSIGR",
  "proforma": "HRDTGILDSIGR",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1339.7081299,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1339.70769,
  "ppm_error": 0.33,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 911,
  "peptide": "HRISKEEAMR",
  "proforma": "HRISKEEAMR",
  "protein_accession": "P62913",
  "protein_name": "Large ribosomal subunit protein uL5",
  "measured_mz": 1256.65275,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1256.65282,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 862,
  "peptide": "HVLSGTLGIPEHTYR",
  "proforma": "HVLSGTLGIPEHTYR",
  "protein_accession": "P01831",
  "protein_name": "Thy-1 membrane glycoprotein",
  "measured_mz": 1679.8824463,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1679.88638,
  "ppm_error": -2.34,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1135,
  "peptide": "IAVPRNPEENEAIASFVK",
  "proforma": "IAVPRNPEENEAIASFVK",
  "protein_accession": "Q8IWL2",
  "protein_name": "Pulmonary surfactant-associated protein A1",
  "measured_mz": 1984.0176,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1984.04982,
  "ppm_error": -16.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1136,
  "peptide": "IEEELGSKAK",
  "proforma": "IEEELGSKAK",
  "protein_accession": "P06733",
  "protein_name": "Alpha-enolase",
  "measured_mz": 1103.59422,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1103.59428,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 912,
  "peptide": "IGDTSVSYKYTSR",
  "proforma": "IGDTSVSYKYTSR",
  "protein_accession": "P20700",
  "protein_name": "Lamin-B1",
  "measured_mz": 1476.73283,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1476.7329,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 913,
  "peptide": "IGFPWSEIR",
  "proforma": "IGFPWSEIR",
  "protein_accession": "P15311",
  "protein_name": "Ezrin",
  "measured_mz": 1104.5836,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1104.58366,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 914,
  "peptide": "IGFPWSEIR",
  "proforma": "IGFPWSEIR",
  "protein_accession": "P26038",
  "protein_name": "Moesin",
  "measured_mz": 1104.5836,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1104.58366,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 915,
  "peptide": "IGFPWSEIR",
  "proforma": "IGFPWSEIR",
  "protein_accession": "P35241",
  "protein_name": "Radixin",
  "measured_mz": 1104.5836,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1104.58366,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 863,
  "peptide": "IGGHGAEYGAEALER",
  "proforma": "IGGHGAEYGAEALER",
  "protein_accession": "P01942",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1529.7316895,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1529.7343,
  "ppm_error": -1.7,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 916,
  "peptide": "IHLISTQSAIPYALR",
  "proforma": "IHLISTQSAIPYALR",
  "protein_accession": "P02679",
  "protein_name": "Fibrinogen gamma chain",
  "measured_mz": 1682.9268,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1682.95882,
  "ppm_error": -19.02,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 917,
  "peptide": "IIAATIENAQPILQIDNAR",
  "proforma": "IIAATIENAQPILQIDNAR",
  "protein_accession": "P08779",
  "protein_name": "Keratin, type I cytoskeletal 16",
  "measured_mz": 2064.113,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2064.14478,
  "ppm_error": -15.4,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1137,
  "peptide": "IIYGGSVTGATCK",
  "proforma": "IIYGGSVTGATCK",
  "protein_accession": "P60174",
  "protein_name": "Triosephosphate isomerase",
  "measured_mz": 1269.65069,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1269.65075,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 864,
  "peptide": "ILTGSSEPEAAPAPR",
  "proforma": "ILTGSSEPEAAPAPR",
  "protein_accession": "Q9QXV0",
  "protein_name": "ProSAAS",
  "measured_mz": 1495.7727051,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1495.7751,
  "ppm_error": -1.6,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 866,
  "peptide": "INEKPQVIADYESGR",
  "proforma": "INEKPQVIADYESGR",
  "protein_accession": "Q9JMG1",
  "protein_name": "Endothelial differentiation-related factor 1",
  "measured_mz": 1718.8769531,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1718.87079,
  "ppm_error": 3.59,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 867,
  "peptide": "INFDSNSAYR",
  "proforma": "INFDSNSAYR",
  "protein_accession": "Q9Z2I9",
  "protein_name": "Succinate--CoA ligase [ADP-forming] subunit beta, mitochondrial",
  "measured_mz": 1186.5563965,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1186.54873,
  "ppm_error": 6.46,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 868,
  "peptide": "INVYYNEAAGNKYVPR",
  "proforma": "INVYYNEAAGNKYVPR",
  "protein_accession": "Q7TMM9",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1870.9550781,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1870.94462,
  "ppm_error": 5.59,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 918,
  "peptide": "IPDWFLNR",
  "proforma": "IPDWFLNR",
  "protein_accession": "P62269",
  "protein_name": "Small ribosomal subunit protein uS13",
  "measured_mz": 1060.55739,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1060.55744,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1138,
  "peptide": "IQEAGTEVVK",
  "proforma": "IQEAGTEVVK",
  "protein_accession": "P40926",
  "protein_name": "Malate dehydrogenase, mitochondrial",
  "measured_mz": 1073.58366,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1073.58372,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 919,
  "peptide": "IRDWYQR",
  "proforma": "IRDWYQR",
  "protein_accession": "P08779",
  "protein_name": "Keratin, type I cytoskeletal 16",
  "measured_mz": 1036.5272,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1036.53229,
  "ppm_error": -4.91,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 920,
  "peptide": "IRDWYQR",
  "proforma": "IRDWYQR",
  "protein_accession": "Q04695",
  "protein_name": "Keratin, type I cytoskeletal 17",
  "measured_mz": 1036.5272,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1036.53229,
  "ppm_error": -4.91,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 869,
  "peptide": "IREEYPDR",
  "proforma": "IREEYPDR",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1077.5329,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1077.53235,
  "ppm_error": 0.51,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 870,
  "peptide": "ISELGAGNGGVVFK",
  "proforma": "ISELGAGNGGVVFK",
  "protein_accession": "P31938",
  "protein_name": "Dual specificity mitogen-activated protein kinase kinase 1",
  "measured_mz": 1347.7327881,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1347.72669,
  "ppm_error": 4.52,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 921,
  "peptide": "ISSPTETER",
  "proforma": "ISSPTETER",
  "protein_accession": "P31949",
  "protein_name": "Protein S100-A11",
  "measured_mz": 1019.50033,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1019.50038,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1139,
  "peptide": "ITEAEKNER",
  "proforma": "ITEAEKNER",
  "protein_accession": "P15311",
  "protein_name": "Ezrin",
  "measured_mz": 1089.55342,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1089.55348,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1140,
  "peptide": "ITPSYVAFTPEGER",
  "proforma": "ITPSYVAFTPEGER",
  "protein_accession": "P11021",
  "protein_name": "Endoplasmic reticulum chaperone BiP",
  "measured_mz": 1566.7791,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1566.77985,
  "ppm_error": -0.48,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 922,
  "peptide": "IVSGKDYNVTANSK",
  "proforma": "IVSGKDYNVTANSK",
  "protein_accession": "P00338",
  "protein_name": "L-lactate dehydrogenase A chain",
  "measured_mz": 1495.77502,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1495.7751,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 871,
  "peptide": "IVYGHLDDPANQEIER",
  "proforma": "IVYGHLDDPANQEIER",
  "protein_accession": "Q99KI0",
  "protein_name": "Aconitate hydratase, mitochondrial",
  "measured_mz": 1868.914917,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1868.91372,
  "ppm_error": 0.64,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 923,
  "peptide": "IWHHTFYNELR",
  "proforma": "IWHHTFYNELR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1515.66,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1515.74916,
  "ppm_error": -58.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 924,
  "peptide": "IYAMHWGTDSR",
  "proforma": "IYAMHWGTDSR",
  "protein_accession": "P62873",
  "protein_name": "Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1",
  "measured_mz": 1336.61022,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1336.61028,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 925,
  "peptide": "IYIDSNNNPER",
  "proforma": "IYIDSNNNPER",
  "protein_accession": "Q00610",
  "protein_name": "Clathrin heavy chain 1",
  "measured_mz": 1334.63345,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1334.63352,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1141,
  "peptide": "KAMEAVAAQGK",
  "proforma": "KAM[Oxidation]EAVAAQGK",
  "protein_accession": "P18669",
  "protein_name": "Phosphoglycerate mutase 1",
  "measured_mz": 1119.5826,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1119.58267,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1142,
  "peptide": "KAMEAVAAQGK",
  "proforma": "KAMEAVAAQGK",
  "protein_accession": "P18669",
  "protein_name": "Phosphoglycerate mutase 1",
  "measured_mz": 1103.5877,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1103.58776,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 926,
  "peptide": "KATQASQEY",
  "proforma": "KATQASQEY",
  "protein_accession": "P16104",
  "protein_name": "Histone H2AX",
  "measured_mz": 1025.48977,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1025.48982,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1143,
  "peptide": "KCEPIIMTVPR",
  "proforma": "KCEPIIMTVPR",
  "protein_accession": "Q9ULV4",
  "protein_name": "Coronin-1C",
  "measured_mz": 1286.69586,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1286.69593,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1144,
  "peptide": "KDAEAWFTSR",
  "proforma": "KDAEAWFTSR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1210.6031,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1210.58511,
  "ppm_error": 14.86,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1287,
  "peptide": "KETIEQEKQAGES",
  "proforma": "KETIEQEKQAGES",
  "protein_accession": "P62328",
  "protein_name": "Thymosin beta-4",
  "measured_mz": 1476.71757,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1476.71764,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1145,
  "peptide": "KFFVGGNWK",
  "proforma": "KFFVGGNWK",
  "protein_accession": "P60174",
  "protein_name": "Triosephosphate isomerase",
  "measured_mz": 1082.57813,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1082.57818,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 907,
  "peptide": "KGKYKEETIEKM",
  "proforma": "KGKYKEETIEKM",
  "protein_accession": "P61254",
  "protein_name": "Large ribosomal subunit protein uL24",
  "measured_mz": 1198.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1483.78249,
  "ppm_error": -192125.53,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "review",
  "flags": "mass_mismatch"
 },
 {
  "observation_id": 927,
  "peptide": "KKESTNSMETR",
  "proforma": "KKESTNSMETR",
  "protein_accession": "P61758",
  "protein_name": "Prefoldin subunit 3",
  "measured_mz": 1310.63682,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1310.63689,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1146,
  "peptide": "KLDELYGTWR",
  "proforma": "KLDELYGTWR",
  "protein_accession": "P36578",
  "protein_name": "Large ribosomal subunit protein uL4",
  "measured_mz": 1280.6633,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1280.66336,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 928,
  "peptide": "KLDEQYQK",
  "proforma": "KLDEQYQK",
  "protein_accession": "P61758",
  "protein_name": "Prefoldin subunit 3",
  "measured_mz": 1051.5418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1051.54185,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1147,
  "peptide": "KLLEGEESR",
  "proforma": "KLLEGEESR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1060.56326,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1060.56331,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1148,
  "peptide": "KLLEGEESR",
  "proforma": "KLLEGEESR",
  "protein_accession": "P17661",
  "protein_name": "Desmin",
  "measured_mz": 1060.56326,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1060.56331,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1149,
  "peptide": "KLLEGEESR",
  "proforma": "KLLEGEESR",
  "protein_accession": "P41219",
  "protein_name": "Peripherin",
  "measured_mz": 1060.56326,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1060.56331,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 929,
  "peptide": "KLNQALLDLHALGSAR",
  "proforma": "KLNQALLDLHALGSAR",
  "protein_accession": "P02792",
  "protein_name": "Ferritin light chain",
  "measured_mz": 1719.922,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1719.98643,
  "ppm_error": -37.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 945,
  "peptide": "KLPFQR",
  "proforma": "KLPFQR",
  "protein_accession": "Q6NXT2",
  "protein_name": "Histone H3.3C",
  "measured_mz": 788.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 788.47773,
  "ppm_error": 28.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1150,
  "peptide": "KLPFQR",
  "proforma": "KLPFQR",
  "protein_accession": "P68431",
  "protein_name": "Histone H3.1",
  "measured_mz": 788.4709,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 788.47773,
  "ppm_error": -8.67,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 794,
  "peptide": "KNLQTVNVDEN",
  "proforma": "KNLQTVNVDEN",
  "protein_accession": "P62899",
  "protein_name": "Large ribosomal subunit protein eL31",
  "measured_mz": 1273.63821,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1273.63827,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1220,
  "peptide": "KSAPATGGVKKPHR",
  "proforma": "K[Dimethyl]SAPATGGVK[Dimethyl]KPHR",
  "protein_accession": "P68431",
  "protein_name": "Histone H3.1",
  "measured_mz": 1489.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1489.89616,
  "ppm_error": 2.58,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 966,
  "peptide": "KSIYYITGESKEKEQVANSAFVERV",
  "proforma": "KSIYYITGESKEKEQVANSAFVERV",
  "protein_accession": "P08238",
  "protein_name": "Heat shock protein HSP 90-beta",
  "measured_mz": 1249.61708,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2875.48361,
  "ppm_error": -565423.68,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "review",
  "flags": "mass_mismatch;not_in_protein"
 },
 {
  "observation_id": 1151,
  "peptide": "KTFSHELSDFGLESTAGEIPVVAIR",
  "proforma": "KTFSHELSDFGLESTAGEIPVVAIR",
  "protein_accession": "P30101",
  "protein_name": "Protein disulfide-isomerase A3",
  "measured_mz": 2703.39869,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2703.39882,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1152,
  "peptide": "KVACIGAWHPAR",
  "proforma": "KVACIGAWHPAR",
  "protein_accession": "Q92901",
  "protein_name": "Ribosomal protein uL3-like",
  "measured_mz": 1308.69931,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1308.69937,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1153,
  "peptide": "LADALQELR",
  "proforma": "LADALQELR",
  "protein_accession": "P02545",
  "protein_name": "Prelamin-A/C",
  "measured_mz": 1028.57343,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1028.57349,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1154,
  "peptide": "LAGDKANYWWLR",
  "proforma": "LAGDKANYWWLR",
  "protein_accession": "P31939",
  "protein_name": "Bifunctional purine biosynthesis protein ATIC",
  "measured_mz": 1492.76949,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1492.76956,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1155,
  "peptide": "LAGLFNEQR",
  "proforma": "LAGLFNEQR",
  "protein_accession": "Q9Y4L1",
  "protein_name": "Hypoxia up-regulated protein 1",
  "measured_mz": 1047.55812,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1047.55817,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 995,
  "peptide": "LAHYNKR",
  "proforma": "LAHYNKR",
  "protein_accession": "P33778",
  "protein_name": "Histone H2B type 1-B",
  "measured_mz": 901.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 901.50026,
  "ppm_error": -0.29,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 930,
  "peptide": "LALDIEIATYR",
  "proforma": "LALDIEIATYR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1277.6904,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1277.70998,
  "ppm_error": -15.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 931,
  "peptide": "LALDIEIATYR",
  "proforma": "LALDIEIATYR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1277.6904,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1277.70998,
  "ppm_error": -15.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 932,
  "peptide": "LALDIEIATYR",
  "proforma": "LALDIEIATYR",
  "protein_accession": "P08729",
  "protein_name": "Keratin, type II cytoskeletal 7",
  "measured_mz": 1277.6904,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1277.70998,
  "ppm_error": -15.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 933,
  "peptide": "LALDVEIATYR",
  "proforma": "LALDVEIATYR",
  "protein_accession": "O95678",
  "protein_name": "Keratin, type II cytoskeletal 75",
  "measured_mz": 1263.6915,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1263.69433,
  "ppm_error": -2.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 934,
  "peptide": "LALDVEIATYR",
  "proforma": "LALDVEIATYR",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 1263.6915,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1263.69433,
  "ppm_error": -2.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 935,
  "peptide": "LALDVEIATYR",
  "proforma": "LALDVEIATYR",
  "protein_accession": "P12035",
  "protein_name": "Keratin, type II cytoskeletal 3",
  "measured_mz": 1263.6915,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1263.69433,
  "ppm_error": -2.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 936,
  "peptide": "LALDVEIATYR",
  "proforma": "LALDVEIATYR",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 1263.6915,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1263.69433,
  "ppm_error": -2.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 937,
  "peptide": "LALDVEIATYR",
  "proforma": "LALDVEIATYR",
  "protein_accession": "P35908",
  "protein_name": "Keratin, type II cytoskeletal 2 epidermal",
  "measured_mz": 1263.6915,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1263.69433,
  "ppm_error": -2.24,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 996,
  "peptide": "LAPEVMEDLVK",
  "proforma": "LAPEVM[Oxidation]EDLVK",
  "protein_accession": "P62761",
  "protein_name": "Visinin-like protein 1",
  "measured_mz": 1259.6728516,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1259.65517,
  "ppm_error": 14.04,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 938,
  "peptide": "LATQSNEITIPVTFESR",
  "proforma": "LATQSNEITIPVTFESR",
  "protein_accession": "P04792",
  "protein_name": "Heat shock protein beta-1",
  "measured_mz": 1905.99,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1905.99163,
  "ppm_error": -0.86,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 997,
  "peptide": "LAVEALSSLDGDLSGR",
  "proforma": "LAVEALSSLDGDLSGR",
  "protein_accession": "Q04447",
  "protein_name": "Creatine kinase B-type",
  "measured_mz": 1602.8227539,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1602.83334,
  "ppm_error": -6.61,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 939,
  "peptide": "LAVNMVPFPR",
  "proforma": "LAVNMVPFPR",
  "protein_accession": "P07437",
  "protein_name": "Tubulin beta chain",
  "measured_mz": 1143.61,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1143.63431,
  "ppm_error": -21.26,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 940,
  "peptide": "LAVNMVPFPR",
  "proforma": "LAVNMVPFPR",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1143.61,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1143.63431,
  "ppm_error": -21.26,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 998,
  "peptide": "LAVNMVPFPR",
  "proforma": "LAVNMVPFPR",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1143.635,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1143.63431,
  "ppm_error": 0.6,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 999,
  "peptide": "LDKSQIHDIVLVGGSTR",
  "proforma": "LDKSQIHDIVLVGGSTR",
  "protein_accession": "P63017",
  "protein_name": "Heat shock cognate 71 kDa protein",
  "measured_mz": 1837.9765625,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1838.01304,
  "ppm_error": -19.84,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1156,
  "peptide": "LEGLTDEINFLR",
  "proforma": "LEGLTDEINFLR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1419.7931,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1419.74782,
  "ppm_error": 31.89,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1157,
  "peptide": "LEGLTDEINFLR",
  "proforma": "LEGLTDEINFLR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1419.7931,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1419.74782,
  "ppm_error": 31.89,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1158,
  "peptide": "LEQEIATYR",
  "proforma": "LEQEIATYR",
  "protein_accession": "P08779",
  "protein_name": "Keratin, type I cytoskeletal 16",
  "measured_mz": 1122.556,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1122.57896,
  "ppm_error": -20.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1159,
  "peptide": "LEQEIATYR",
  "proforma": "LEQEIATYR",
  "protein_accession": "Q04695",
  "protein_name": "Keratin, type I cytoskeletal 17",
  "measured_mz": 1122.556,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1122.57896,
  "ppm_error": -20.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1160,
  "peptide": "LEQEIATYR",
  "proforma": "LEQEIATYR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1122.556,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1122.57896,
  "ppm_error": -20.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1161,
  "peptide": "LEQEIATYR",
  "proforma": "LEQEIATYR",
  "protein_accession": "P13646",
  "protein_name": "Keratin, type I cytoskeletal 13",
  "measured_mz": 1122.556,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1122.57896,
  "ppm_error": -20.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1162,
  "peptide": "LEQEIATYR",
  "proforma": "LEQEIATYR",
  "protein_accession": "P19012",
  "protein_name": "Keratin, type I cytoskeletal 15",
  "measured_mz": 1122.556,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1122.57896,
  "ppm_error": -20.46,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1163,
  "peptide": "LFDQAFGLPR",
  "proforma": "LFDQAFGLPR",
  "protein_accession": "P04792",
  "protein_name": "Heat shock protein beta-1",
  "measured_mz": 1163.6035,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1163.62077,
  "ppm_error": -14.84,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1000,
  "peptide": "LFQEDNGMPVHLK",
  "proforma": "LFQEDNGMPVHLK",
  "protein_accession": "P48771",
  "protein_name": "Cytochrome c oxidase subunit 7A2, mitochondrial",
  "measured_mz": 1527.7579346,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1527.76243,
  "ppm_error": -2.94,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1164,
  "peptide": "LFVGNLPADITEDEFKRLFAK",
  "proforma": "LFVGNLPADITEDEFKRLFAK",
  "protein_accession": "P23246",
  "protein_name": "Splicing factor, proline- and glutamine-rich",
  "measured_mz": 2423.29681,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2423.29692,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1165,
  "peptide": "LGGPEAGLGEYLFER",
  "proforma": "LGGPEAGLGEYLFER",
  "protein_accession": "P02792",
  "protein_name": "Ferritin light chain",
  "measured_mz": 1607.782,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1607.8064,
  "ppm_error": -15.17,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 941,
  "peptide": "LGHPDTLNQGEFK",
  "proforma": "LGHPDTLNQGEFK",
  "protein_accession": "P06702",
  "protein_name": "Protein S100-A9",
  "measured_mz": 1455.7142,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1455.72267,
  "ppm_error": -5.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 942,
  "peptide": "LGIHEDSTNR",
  "proforma": "LGIHEDSTNR",
  "protein_accession": "P08238",
  "protein_name": "Heat shock protein HSP 90-beta",
  "measured_mz": 1141.55957,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1141.55963,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1001,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFM[Oxidation]PGFAPLTSR",
  "protein_accession": "P68372",
  "protein_name": "Tubulin beta-4B chain",
  "measured_mz": 1636.8206787,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1636.83045,
  "ppm_error": -5.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1002,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFM[Oxidation]PGFAPLTSR",
  "protein_accession": "Q7TMM9",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1636.8206787,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1636.83045,
  "ppm_error": -5.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1003,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFM[Oxidation]PGFAPLTSR",
  "protein_accession": "Q9CWF2",
  "protein_name": "Tubulin beta-2B chain",
  "measured_mz": 1636.8206787,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1636.83045,
  "ppm_error": -5.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1004,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFM[Oxidation]PGFAPLTSR",
  "protein_accession": "Q9D6F9",
  "protein_name": "Tubulin beta-4A chain",
  "measured_mz": 1636.8206787,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1636.83045,
  "ppm_error": -5.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1005,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFMPGFAPLTSR",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1620.8338,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1620.83553,
  "ppm_error": -1.07,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1166,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFMPGFAPLTSR",
  "protein_accession": "P07437",
  "protein_name": "Tubulin beta chain",
  "measured_mz": 1620.826,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1620.83553,
  "ppm_error": -5.88,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1167,
  "peptide": "LHFFMPGFAPLTSR",
  "proforma": "LHFFMPGFAPLTSR",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1620.826,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1620.83553,
  "ppm_error": -5.88,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 943,
  "peptide": "LISWYDNEFGYSNR",
  "proforma": "LISWYDNEFGYSNR",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1763.8364,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1763.80238,
  "ppm_error": 19.29,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1168,
  "peptide": "LKYENELALR",
  "proforma": "LKYENELALR",
  "protein_accession": "P13646",
  "protein_name": "Keratin, type I cytoskeletal 13",
  "measured_mz": 1248.661,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1248.69466,
  "ppm_error": -26.96,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1169,
  "peptide": "LKYENELALR",
  "proforma": "LKYENELALR",
  "protein_accession": "P19012",
  "protein_name": "Keratin, type I cytoskeletal 15",
  "measured_mz": 1248.661,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1248.69466,
  "ppm_error": -26.96,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1170,
  "peptide": "LLQDSVDFSLADAINTEFKNTR",
  "proforma": "LLQDSVDFSLADAINTEFKNTR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 2497.2173,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2497.25691,
  "ppm_error": -15.86,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1006,
  "peptide": "LLVVDPETDER",
  "proforma": "LLVVDPETDER",
  "protein_accession": "P70441",
  "protein_name": "Na(+)/H(+) exchange regulatory cofactor NHE-RF1",
  "measured_mz": 1285.644043,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1285.66342,
  "ppm_error": -15.07,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1007,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P02088",
  "protein_name": "Hemoglobin subunit beta-1",
  "measured_mz": 1274.7236328,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": -1.52,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1008,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P68871",
  "protein_name": "Hemoglobin subunit beta",
  "measured_mz": 1274.73,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": 3.48,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1009,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P68871",
  "protein_name": "Hemoglobin subunit beta",
  "measured_mz": 1274.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": -20.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1010,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P68871",
  "protein_name": "Hemoglobin subunit beta",
  "measured_mz": 1274.73,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": 3.48,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1011,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P69892",
  "protein_name": "Hemoglobin subunit gamma-2",
  "measured_mz": 1274.72,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": -4.37,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Prostate",
  "uberon_id": "UBERON:0002367",
  "condition": "Prostate cancer",
  "doi": "10.1002/ijc.28080",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1171,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P68871",
  "protein_name": "Hemoglobin subunit beta",
  "measured_mz": 1274.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": -20.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1172,
  "peptide": "LLVVYPWTQR",
  "proforma": "LLVVYPWTQR",
  "protein_accession": "P69892",
  "protein_name": "Hemoglobin subunit gamma-2",
  "measured_mz": 1274.8811,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1274.72557,
  "ppm_error": 122.01,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/pr3003672",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 944,
  "peptide": "LLYNNVSNFGR",
  "proforma": "LLYNNVSNFGR",
  "protein_accession": "Q00610",
  "protein_name": "Clathrin heavy chain 1",
  "measured_mz": 1296.66945,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1296.66951,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1173,
  "peptide": "LNDFASTVR",
  "proforma": "LNDFASTVR",
  "protein_accession": "P20674",
  "protein_name": "Cytochrome c oxidase subunit 5A, mitochondrial",
  "measured_mz": 1022.52648,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1022.52654,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1174,
  "peptide": "LPDIFEAQIAGLR",
  "proforma": "LPDIFEAQIAGLR",
  "protein_accession": "P08729",
  "protein_name": "Keratin, type II cytoskeletal 7",
  "measured_mz": 1442.755,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1442.80019,
  "ppm_error": -31.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1012,
  "peptide": "LQAAYAGDK",
  "proforma": "LQAAYAGDK",
  "protein_accession": "Q62261",
  "protein_name": "Spectrin beta chain, non-erythrocytic 1",
  "measured_mz": 936.4899902,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 936.47852,
  "ppm_error": 12.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1175,
  "peptide": "LQLEACETR",
  "proforma": "LQLEACETR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1062.52477,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1062.52482,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 946,
  "peptide": "LQSSEAEVR",
  "proforma": "LQSSEAEVR",
  "protein_accession": "Q9P2E9",
  "protein_name": "Ribosome-binding protein 1",
  "measured_mz": 1018.51631,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1018.51636,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1013,
  "peptide": "LQVASDENYKDPTNLQGK",
  "proforma": "LQVASDENYKDPTNLQGK",
  "protein_accession": "P16546",
  "protein_name": "Spectrin alpha chain, non-erythrocytic 1",
  "measured_mz": 2020.0046387,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2019.99817,
  "ppm_error": 3.2,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1014,
  "peptide": "LSEDVEQVK",
  "proforma": "LSEDVEQVK",
  "protein_accession": "P61264",
  "protein_name": "Syntaxin-1B",
  "measured_mz": 1046.541748,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1046.53643,
  "ppm_error": 5.08,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1015,
  "peptide": "LSEELSGGR",
  "proforma": "LSEELSGGR",
  "protein_accession": "Q99JY9",
  "protein_name": "Actin-related protein 3",
  "measured_mz": 947.4677734,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 947.47925,
  "ppm_error": -12.11,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1176,
  "peptide": "LSEHATAPTR",
  "proforma": "LSEHATAPTR",
  "protein_accession": "P33316",
  "protein_name": "Deoxyuridine 5'-triphosphate nucleotidohydrolase, mitochondrial",
  "measured_mz": 1082.55884,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1082.5589,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 947,
  "peptide": "LSELEAALQR",
  "proforma": "LSELEAALQR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1129.6152,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1129.62116,
  "ppm_error": -5.28,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 948,
  "peptide": "LSELEAALQR",
  "proforma": "LSELEAALQR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1129.6152,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1129.62116,
  "ppm_error": -5.28,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1177,
  "peptide": "LSVAAQEAAR",
  "proforma": "LSVAAQEAAR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1015.55303,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1015.55308,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1022,
  "peptide": "LTGFHETSNINDFSAGVANR",
  "proforma": "LTGFHETSNINDFSAGVANR",
  "protein_accession": "P15105",
  "protein_name": "Glutamine synthetase",
  "measured_mz": 2150.0249023,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2150.02612,
  "ppm_error": -0.57,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1023,
  "peptide": "LVGMPAK",
  "proforma": "LVGMPAK",
  "protein_accession": "P38646",
  "protein_name": "Stress-70 protein, mitochondrial",
  "measured_mz": 715.4,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 715.41711,
  "ppm_error": -23.91,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1024,
  "peptide": "LVNEVTEFAK",
  "proforma": "LVNEVTEFAK",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1149.63,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1149.61502,
  "ppm_error": 13.03,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1025,
  "peptide": "LVNEVTEFAK",
  "proforma": "LVNEVTEFAK",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1149.63,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1149.61502,
  "ppm_error": 13.03,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1180,
  "peptide": "LVSLTLNLVTR",
  "proforma": "LVSLTLNLVTR",
  "protein_accession": "P01833",
  "protein_name": "Polymeric immunoglobulin receptor",
  "measured_mz": 1228.7552,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1228.76235,
  "ppm_error": -5.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1182,
  "peptide": "MAGLKVLQLINDNTATALSYGVFR",
  "proforma": "MAGLKVLQLINDNTATALSYGVFR",
  "protein_accession": "Q9Y4L1",
  "protein_name": "Hypoxia up-regulated protein 1",
  "measured_mz": 2595.39619,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2595.39632,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 949,
  "peptide": "MALDIEIATYR",
  "proforma": "MALDIEIATYR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1295.66634,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1295.6664,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 950,
  "peptide": "MALDIEIATYR",
  "proforma": "MALDIEIATYR",
  "protein_accession": "P41219",
  "protein_name": "Peripherin",
  "measured_mz": 1295.66634,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1295.6664,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 951,
  "peptide": "MALDIEIATYRK",
  "proforma": "MALDIEIATYRK",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1423.76129,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1423.76136,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 952,
  "peptide": "MALDIEIATYRK",
  "proforma": "MALDIEIATYRK",
  "protein_accession": "P41219",
  "protein_name": "Peripherin",
  "measured_mz": 1423.76129,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1423.76136,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 865,
  "peptide": "MENANVLAR",
  "proforma": "MENANVLAR",
  "protein_accession": "P04075",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 1017.51454,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1017.51459,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1181,
  "peptide": "MFGGPGTASRPSSS",
  "proforma": "M[Oxidation]FGGPGTASRPSSS",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1354.60551,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1354.60559,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1026,
  "peptide": "MFLSFPTTK",
  "proforma": "[Oxidation]?MFLSFPTTK",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1087.57,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1087.54924,
  "ppm_error": 19.08,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1027,
  "peptide": "MFLSFPTTK",
  "proforma": "[Oxidation]?MFLSFPTTK",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1087.57,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1087.54924,
  "ppm_error": 19.08,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1028,
  "peptide": "MFLSFPTTK",
  "proforma": "[Oxidation]?MFLSFPTTK",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1087.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1087.54924,
  "ppm_error": 46.67,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 953,
  "peptide": "MIGFPSSAGSVSPR",
  "proforma": "MIGFPSSAGSVSPR",
  "protein_accession": "P13646",
  "protein_name": "Keratin, type I cytoskeletal 13",
  "measured_mz": 1392.688,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1392.69401,
  "ppm_error": -4.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1183,
  "peptide": "MLDMGFEPQIR",
  "proforma": "MLDMGFEPQIR",
  "protein_accession": "Q92841",
  "protein_name": "Probable ATP-dependent RNA helicase DDX17",
  "measured_mz": 1336.63874,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1336.63881,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 954,
  "peptide": "MLGQMTDQVADLR",
  "proforma": "MLGQMTDQVADLR",
  "protein_accession": "P18206",
  "protein_name": "Vinculin",
  "measured_mz": 1477.71369,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1477.71376,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 955,
  "peptide": "MLGQMTDQVADLR",
  "proforma": "MLGQMTDQVADLR",
  "protein_accession": "P18206",
  "protein_name": "Vinculin",
  "measured_mz": 1477.71369,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1477.71376,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1029,
  "peptide": "MNVLADALK",
  "proforma": "M[Oxidation]NVLADALK",
  "protein_accession": "P62245",
  "protein_name": "Small ribosomal subunit protein uS8",
  "measured_mz": 990.5254517,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 990.52884,
  "ppm_error": -3.42,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 795,
  "peptide": "MPGFAPLTSR",
  "proforma": "MPGFAPLTSR",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1076.55567,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1076.55573,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1032,
  "peptide": "MSGKVTKPKEEK",
  "proforma": "MSGKVTKPKEEK",
  "protein_accession": "Q92913-3",
  "protein_name": "Isoform 3 of Fibroblast growth factor 13",
  "measured_mz": 1361.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1361.74571,
  "ppm_error": -33.57,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1184,
  "peptide": "NDEELNKLLGK",
  "proforma": "NDEELNKLLGK",
  "protein_accession": "P0C0S8",
  "protein_name": "Histone H2A type 1",
  "measured_mz": 1272.67934,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1272.67941,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1038,
  "peptide": "NFDEIDRSGFG",
  "proforma": "NFDEIDRSGFG",
  "protein_accession": "A0A158TFP8",
  "protein_name": "Orcokinin peptide",
  "measured_mz": 1256.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1256.55421,
  "ppm_error": 36.44,
  "species": "Cancer borealis",
  "taxon_id": 39395,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1039,
  "peptide": "NFDEIDRSGFGFA",
  "proforma": "NFDEIDRSGFGFA",
  "protein_accession": "A0A158TFP8",
  "protein_name": "Orcokinin peptide",
  "measured_mz": 1474.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1474.65973,
  "ppm_error": 27.31,
  "species": "Cancer borealis",
  "taxon_id": 39395,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1040,
  "peptide": "NFDEIDRSGFGFV",
  "proforma": "NFDEIDRSGFGFV",
  "protein_accession": "A0A158TFP8",
  "protein_name": "Orcokinin peptide",
  "measured_mz": 1502.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1502.69103,
  "ppm_error": 5.97,
  "species": "Cancer borealis",
  "taxon_id": 39395,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1041,
  "peptide": "NFDEIDRSSFGFN",
  "proforma": "NFDEIDRSSFGFN",
  "protein_accession": "A0A158TFP8",
  "protein_name": "Orcokinin peptide",
  "measured_mz": 1547.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1547.67611,
  "ppm_error": 15.43,
  "species": "Cancer borealis",
  "taxon_id": 39395,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1042,
  "peptide": "NFDEIDRSSFGFV",
  "proforma": "NFDEIDRSSFGFV",
  "protein_accession": "A0A158TFP8",
  "protein_name": "Orcokinin peptide",
  "measured_mz": 1532.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1532.7016,
  "ppm_error": -1.04,
  "species": "Cancer borealis",
  "taxon_id": 39395,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/pr060603v",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 956,
  "peptide": "NHEEEMLALR",
  "proforma": "NHEEEMLALR",
  "protein_accession": "P08779",
  "protein_name": "Keratin, type I cytoskeletal 16",
  "measured_mz": 1241.597,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1241.5943,
  "ppm_error": 2.18,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1043,
  "peptide": "NHKGGVPPQR",
  "proforma": "[Oxidation]?NHKGGVPPQR",
  "protein_accession": "Q9Y676",
  "protein_name": "Small ribosomal subunit protein mS40",
  "measured_mz": 1105.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1105.58612,
  "ppm_error": 12.56,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1044,
  "peptide": "NHQGPKR",
  "proforma": "[Oxidation]?NHQGPKR",
  "protein_accession": "P38398",
  "protein_name": "Breast cancer type 1 susceptibility protein",
  "measured_mz": 852.4,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 852.44347,
  "ppm_error": -51.0,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1185,
  "peptide": "NIETIINTFHQYSVK",
  "proforma": "NIETIINTFHQYSVK",
  "protein_accession": "P06702",
  "protein_name": "Protein S100-A9",
  "measured_mz": 1806.9113,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1806.93848,
  "ppm_error": -15.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1045,
  "peptide": "NIVTPR",
  "proforma": "NIVTPR",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 699.4127,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 699.4148,
  "ppm_error": -3.0,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 957,
  "peptide": "NLGIGKVSSFEEK",
  "proforma": "NLGIGKVSSFEEK",
  "protein_accession": "P40926",
  "protein_name": "Malate dehydrogenase, mitochondrial",
  "measured_mz": 1407.74775,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1407.74782,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1046,
  "peptide": "NLHQSGFSLSGAQIDDNIPR",
  "proforma": "NLHQSGFSLSGAQIDDNIPR",
  "protein_accession": "O08553",
  "protein_name": "Dihydropyrimidinase-related protein 2",
  "measured_mz": 2169.0793457,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2169.06832,
  "ppm_error": 5.08,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1047,
  "peptide": "NLHQSGFSLSGTQVDEGVR",
  "proforma": "NLHQSGFSLSGTQVDEGVR",
  "protein_accession": "Q62188",
  "protein_name": "Dihydropyrimidinase-related protein 3",
  "measured_mz": 2031.0184326,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2030.98901,
  "ppm_error": 14.49,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1186,
  "peptide": "NLLTAAADAIER",
  "proforma": "NLLTAAADAIER",
  "protein_accession": "P33897",
  "protein_name": "ATP-binding cassette sub-family D member 1",
  "measured_mz": 1257.67968,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1257.67974,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 958,
  "peptide": "NLQEAEEWYK",
  "proforma": "NLQEAEEWYK",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1309.60585,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1309.60591,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 959,
  "peptide": "NLQEAEEWYK",
  "proforma": "NLQEAEEWYK",
  "protein_accession": "P41219",
  "protein_name": "Peripherin",
  "measured_mz": 1309.60585,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1309.60591,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1048,
  "peptide": "NLQSAEEWYK",
  "proforma": "NLQSAEEWYK",
  "protein_accession": "P46660",
  "protein_name": "Alpha-internexin",
  "measured_mz": 1267.5957031,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1267.59534,
  "ppm_error": 0.28,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 960,
  "peptide": "NLQTVNVDEN",
  "proforma": "NLQTVNVDEN",
  "protein_accession": "P62899",
  "protein_name": "Large ribosomal subunit protein eL31",
  "measured_mz": 1145.54325,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1145.54331,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1049,
  "peptide": "NNSAIDSGINLTTDTSK",
  "proforma": "NNSAIDSGINLTTDTSK",
  "protein_accession": "Q9R0K7",
  "protein_name": "Plasma membrane calcium-transporting ATPase 2",
  "measured_mz": 1750.8481445,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1750.84536,
  "ppm_error": 1.59,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1050,
  "peptide": "NPARTCRDLR",
  "proforma": "[Oxidation]?NPARTCRDLR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1217.62,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1217.61676,
  "ppm_error": 2.66,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1051,
  "peptide": "NPDSQYGELIEK",
  "proforma": "NPDSQYGELIEK",
  "protein_accession": "Q9DBP5",
  "protein_name": "UMP-CMP kinase",
  "measured_mz": 1392.6652832,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1392.66415,
  "ppm_error": 0.81,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1187,
  "peptide": "NPEENEAIASFVK",
  "proforma": "NPEENEAIASFVK",
  "protein_accession": "Q8IWL2",
  "protein_name": "Pulmonary surfactant-associated protein A1",
  "measured_mz": 1447.735,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1447.70635,
  "ppm_error": 19.79,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1052,
  "peptide": "NQGGYGGSSSSSSYGSGR",
  "proforma": "NQGGYGGSSSSSSYGSGR",
  "protein_accession": "P49312",
  "protein_name": "Heterogeneous nuclear ribonucleoprotein A1",
  "measured_mz": 1694.7021484,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1694.7001,
  "ppm_error": 1.21,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 961,
  "peptide": "NQKDPGVLDR",
  "proforma": "NQKDPGVLDR",
  "protein_accession": "P31949",
  "protein_name": "Protein S100-A11",
  "measured_mz": 1141.59595,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1141.59601,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1053,
  "peptide": "NSLETVGTPDSGR",
  "proforma": "NSLETVGTPDSGR",
  "protein_accession": "Q9R0N7",
  "protein_name": "Synaptotagmin-7",
  "measured_mz": 1332.6213379,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1332.639,
  "ppm_error": -13.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1054,
  "peptide": "NSSYFVEWIPNNVK",
  "proforma": "NSSYFVEWIPNNVK",
  "protein_accession": "P99024",
  "protein_name": "Tubulin beta-5 chain",
  "measured_mz": 1696.8503418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1696.83295,
  "ppm_error": 10.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1055,
  "peptide": "NSSYFVEWIPNNVK",
  "proforma": "NSSYFVEWIPNNVK",
  "protein_accession": "Q7TMM9",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1696.8503418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1696.83295,
  "ppm_error": 10.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1056,
  "peptide": "NSSYFVEWIPNNVK",
  "proforma": "NSSYFVEWIPNNVK",
  "protein_accession": "Q9CWF2",
  "protein_name": "Tubulin beta-2B chain",
  "measured_mz": 1696.8503418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1696.83295,
  "ppm_error": 10.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1057,
  "peptide": "NSSYFVEWIPNNVK",
  "proforma": "NSSYFVEWIPNNVK",
  "protein_accession": "P68372",
  "protein_name": "Tubulin beta-4B chain",
  "measured_mz": 1696.8503418,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1696.83295,
  "ppm_error": 10.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1058,
  "peptide": "PHPYPALTPEQK",
  "proforma": "PHPYPALTPEQK",
  "protein_accession": "P05064",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 1377.7166748,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1377.71613,
  "ppm_error": 0.4,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1059,
  "peptide": "PLENLEEEGLPK",
  "proforma": "PLENLEEEGLPK",
  "protein_accession": "Q99JI4",
  "protein_name": "26S proteasome non-ATPase regulatory subunit 6",
  "measured_mz": 1367.7004395,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1367.70529,
  "ppm_error": -3.54,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1030,
  "peptide": "PMFIVNTNVPR",
  "proforma": "PMFIVNTNVPR",
  "protein_accession": "P14174",
  "protein_name": "Macrophage migration inhibitory factor",
  "measured_mz": 1287.6816,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1287.6878,
  "ppm_error": -4.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1060,
  "peptide": "PMFIVNTNVPR",
  "proforma": "PMFIVNTNVPR",
  "protein_accession": "P34884",
  "protein_name": "Macrophage migration inhibitory factor",
  "measured_mz": 1287.6799316,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1287.6878,
  "ppm_error": -6.11,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1031,
  "peptide": "PPYTVVYFPVR",
  "proforma": "PPYTVVYFPVR",
  "protein_accession": "P09211",
  "protein_name": "Glutathione S-transferase P",
  "measured_mz": 1337.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1337.72523,
  "ppm_error": -18.86,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1061,
  "peptide": "PQLIVMGNLDR",
  "proforma": "[Oxidation]?[Acetyl]-PQLIVMGNLDR",
  "protein_accession": "Q08174",
  "protein_name": "Protocadherin-1",
  "measured_mz": null,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1313.6882,
  "ppm_error": "",
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "review",
  "flags": "measured_missing;reported_theoretical_differs"
 },
 {
  "observation_id": 1062,
  "peptide": "PVVHFFKNIVTPR",
  "proforma": "PVVHFFKNIVTPR",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1553.89,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1553.89509,
  "ppm_error": -3.28,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1586/14789450.2013.814939",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1063,
  "peptide": "QDEGKEDPEADQEHA",
  "proforma": "QDEGKEDPEADQEHA",
  "protein_accession": "P06837",
  "protein_name": "Neuromodulin",
  "measured_mz": 1697.6884766,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1697.68853,
  "ppm_error": -0.03,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1192,
  "peptide": "QDGSVDFGR",
  "proforma": "QDGSVDFGR",
  "protein_accession": "P02675",
  "protein_name": "Fibrinogen beta chain",
  "measured_mz": 980.4486,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 980.4432,
  "ppm_error": 5.51,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1193,
  "peptide": "QDIAFAYQR",
  "proforma": "QDIAFAYQR",
  "protein_accession": "P07355",
  "protein_name": "Annexin A2",
  "measured_mz": 1111.566,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1111.55308,
  "ppm_error": 11.62,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1194,
  "peptide": "QDVDNASLAR",
  "proforma": "QDVDNASLAR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1088.53302,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1088.53308,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1195,
  "peptide": "QEPSQGTTTFAVTSILR",
  "proforma": "QEPSQGTTTFAVTSILR",
  "protein_accession": "P01876",
  "protein_name": "Immunoglobulin heavy constant alpha 1",
  "measured_mz": 1835.908,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1835.94977,
  "ppm_error": -22.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1064,
  "peptide": "QGAIVAVTGDGVNDSPALK",
  "proforma": "QGAIVAVTGDGVNDSPALK",
  "protein_accession": "Q6PIE5",
  "protein_name": "Sodium/potassium-transporting ATPase subunit alpha-2",
  "measured_mz": 1811.9720459,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1811.94977,
  "ppm_error": 12.29,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1065,
  "peptide": "QGAIVAVTGDGVNDSPALK",
  "proforma": "QGAIVAVTGDGVNDSPALK",
  "protein_accession": "Q8VDN2",
  "protein_name": "Sodium/potassium-transporting ATPase subunit alpha-1",
  "measured_mz": 1811.9720459,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1811.94977,
  "ppm_error": 12.29,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1196,
  "peptide": "QIIGYVIGTQQATPGPAYSGR",
  "proforma": "QIIGYVIGTQQATPGPAYSGR",
  "protein_accession": "P06731",
  "protein_name": "Cell adhesion molecule CEACAM5",
  "measured_mz": 2177.093,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2177.13494,
  "ppm_error": -19.27,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1197,
  "peptide": "QLAEAHAQAK",
  "proforma": "QLAEAHAQAK",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1066.56393,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1066.56398,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1198,
  "peptide": "QLAEGTAQQR",
  "proforma": "QLAEGTAQQR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1101.56465,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1101.56471,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1199,
  "peptide": "QLDSIVGER",
  "proforma": "QLDSIVGER",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 1016.542,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1016.5371,
  "ppm_error": 4.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1200,
  "peptide": "QLDSIVGER",
  "proforma": "QLDSIVGER",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 1016.542,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1016.5371,
  "ppm_error": 4.82,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 962,
  "peptide": "QLSFEEFIMLMAR",
  "proforma": "QLSFEEFIMLMAR",
  "protein_accession": "P06702",
  "protein_name": "Protein S100-A9",
  "measured_mz": 1614.79,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1614.80185,
  "ppm_error": -7.34,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1201,
  "peptide": "QNLEPLFEQYINNLR",
  "proforma": "QNLEPLFEQYINNLR",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 1890.955,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1890.97084,
  "ppm_error": -8.38,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1202,
  "peptide": "QNLEPLFEQYINNLR",
  "proforma": "QNLEPLFEQYINNLR",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 1890.955,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1890.97084,
  "ppm_error": -8.38,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1203,
  "peptide": "QNLEPLFEQYINNLRR",
  "proforma": "QNLEPLFEQYINNLRR",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 2047.0294,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2047.07195,
  "ppm_error": -20.79,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1204,
  "peptide": "QNLEPLFEQYINNLRR",
  "proforma": "QNLEPLFEQYINNLRR",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 2047.0294,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2047.07195,
  "ppm_error": -20.79,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1205,
  "peptide": "QQYESVAAK",
  "proforma": "QQYESVAAK",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1023.5105,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1023.51055,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1206,
  "peptide": "QRPSEIKDYSPYFK",
  "proforma": "QRPSEIKDYSPYFK",
  "protein_accession": "P08779",
  "protein_name": "Keratin, type I cytoskeletal 16",
  "measured_mz": 1757.868,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1757.88571,
  "ppm_error": -10.08,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1207,
  "peptide": "QSSATSSFGGLGGGSVR",
  "proforma": "QSSATSSFGGLGGGSVR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1554.748,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1554.75067,
  "ppm_error": -1.72,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1208,
  "peptide": "QTMLFSATQTR",
  "proforma": "QTMLFSATQTR",
  "protein_accession": "Q9NVP1",
  "protein_name": "ATP-dependent RNA helicase DDX18",
  "measured_mz": 1283.64118,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1283.64125,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1209,
  "peptide": "QVDQLTNDKAR",
  "proforma": "QVDQLTNDKAR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1287.66509,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1287.66515,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1210,
  "peptide": "QVEVLTNQR",
  "proforma": "QVEVLTNQR",
  "protein_accession": "P17661",
  "protein_name": "Desmin",
  "measured_mz": 1086.59014,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1086.5902,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1211,
  "peptide": "RCLYASVLTAQPR",
  "proforma": "RCLYASVLTAQPR",
  "protein_accession": "P13639",
  "protein_name": "Elongation factor 2",
  "measured_mz": 1477.79432,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1477.79439,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1081,
  "peptide": "RCPNHELSR",
  "proforma": "[Oxidation]?RCPNHELSR",
  "protein_accession": "Q9H3D4",
  "protein_name": "Tumor protein 63",
  "measured_mz": 1127.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1127.53745,
  "ppm_error": 55.47,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1083,
  "peptide": "RDLDDLKK",
  "proforma": "RDLDDLKK",
  "protein_accession": "Q53ES0",
  "protein_name": "Sodium/potassium-transporting ATPase subunit alpha",
  "measured_mz": 1002.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1002.55784,
  "ppm_error": -57.69,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1212,
  "peptide": "RDQALTEEHAR",
  "proforma": "RDQALTEEHAR",
  "protein_accession": "P12814",
  "protein_name": "Alpha-actinin-1",
  "measured_mz": 1325.65558,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1325.65565,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1213,
  "peptide": "RFDAMPFTLR",
  "proforma": "RFDAMPFTLR",
  "protein_accession": "Q9UQ80",
  "protein_name": "Proliferation-associated protein 2G4",
  "measured_mz": 1253.64588,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1253.64594,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1119,
  "peptide": "RGPNGEAGSAGPPGPPGLR",
  "proforma": "[Oxidation]^2?RGPNGEAGSAGPPGPPGLR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1775.86,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1775.87833,
  "ppm_error": -10.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1130,
  "peptide": "RHPDYSVVLLLR",
  "proforma": "RHPDYSVVLLLR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1467.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.84306,
  "ppm_error": -29.33,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1131,
  "peptide": "RHPDYSVVLLLR",
  "proforma": "RHPDYSVVLLLR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1467.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.84306,
  "ppm_error": -29.33,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1214,
  "peptide": "RHPDYSVVLLLR",
  "proforma": "RHPDYSVVLLLR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1467.8109,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.84306,
  "ppm_error": -21.91,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1215,
  "peptide": "RHPYFYAPELLFFAK",
  "proforma": "RHPYFYAPELLFFAK",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1898.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1898.9952,
  "ppm_error": -50.13,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1216,
  "peptide": "RIPLAEWESR",
  "proforma": "RIPLAEWESR",
  "protein_accession": "P31930",
  "protein_name": "Cytochrome b-c1 complex subunit 1, mitochondrial",
  "measured_mz": 1256.67453,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1256.6746,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1179,
  "peptide": "RLTGFHETSNINDFSAGVANR",
  "proforma": "RLTGFHETSNINDFSAGVANR",
  "protein_accession": "P15105",
  "protein_name": "Glutamine synthetase",
  "measured_mz": 2306.1184082,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2306.12723,
  "ppm_error": -3.83,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1217,
  "peptide": "RPDQQLQGEGK",
  "proforma": "RPDQQLQGEGK",
  "protein_accession": "Q8NC51",
  "protein_name": "SERPINE1 mRNA-binding protein 1",
  "measured_mz": 1255.63887,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1255.63894,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1188,
  "peptide": "RPLSGGHVTR",
  "proforma": "[Oxidation]?RPLSGGHVTR",
  "protein_accession": "Q6H3X3",
  "protein_name": "UL-16 binding protein 5",
  "measured_mz": 1095.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1095.60177,
  "ppm_error": -1.61,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1189,
  "peptide": "RPPSAFFLFCSEYRPK",
  "proforma": "RPPSAFFLFCSEYRPK",
  "protein_accession": "P09429",
  "protein_name": "High mobility group protein B1",
  "measured_mz": 1944.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1944.9789,
  "ppm_error": -40.57,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1190,
  "peptide": "RPSQR",
  "proforma": "RPSQR",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 643.35,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 643.36343,
  "ppm_error": -20.88,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac901043n",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1191,
  "peptide": "RPSQR",
  "proforma": "RPSQR",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 643.3624,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 643.36343,
  "ppm_error": -1.61,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1226,
  "peptide": "RSGGHAPR",
  "proforma": "RSGGHAPR",
  "protein_accession": "Q92731",
  "protein_name": "Estrogen receptor beta",
  "measured_mz": 837.4,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 837.44381,
  "ppm_error": -52.31,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1292,
  "peptide": "RSYTSGPGSR",
  "proforma": "RSYTSGPGSR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1067.52279,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1067.52285,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1293,
  "peptide": "RSYVTTSTR",
  "proforma": "RSYVTTSTR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1070.55884,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1070.5589,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1218,
  "peptide": "RVDTVDPPYPR",
  "proforma": "RVDTVDPPYPR",
  "protein_accession": "P04004",
  "protein_name": "Vitronectin",
  "measured_mz": 1314.698,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1314.68008,
  "ppm_error": 13.63,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1219,
  "peptide": "RVPFSLLR",
  "proforma": "RVPFSLLR",
  "protein_accession": "P04792",
  "protein_name": "Heat shock protein beta-1",
  "measured_mz": 987.543,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 987.60981,
  "ppm_error": -67.65,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 963,
  "peptide": "SAAQAAAQTNSNAAGK",
  "proforma": "SAAQAAAQTNSNAAGK",
  "protein_accession": "Q8NC51",
  "protein_name": "SERPINE1 mRNA-binding protein 1",
  "measured_mz": 1460.70873,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1460.70881,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 964,
  "peptide": "SAVTTVVNPK",
  "proforma": "SAVTTVVNPK",
  "protein_accession": "P05556",
  "protein_name": "Integrin beta-1",
  "measured_mz": 1015.57818,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1015.57824,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1279,
  "peptide": "SDAAPAASDSKPSSAEPAPSSK",
  "proforma": "SDAAPAASDSKPSSAEPAPSSK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 2057.9560547,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2057.96218,
  "ppm_error": -2.98,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1221,
  "peptide": "SDEGQLSPATR",
  "proforma": "SDEGQLSPATR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1160.55415,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1160.55421,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1280,
  "peptide": "SDFDPGQDTYQHPPK",
  "proforma": "SDFDPGQDTYQHPPK",
  "protein_accession": "Q99KI0",
  "protein_name": "Aconitate hydratase, mitochondrial",
  "measured_mz": 1731.7601318,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1731.7609,
  "ppm_error": -0.45,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1281,
  "peptide": "SEGAAEEQPEPAPAPEQEAAAPGPAAGGEAPK",
  "proforma": "SEGAAEEQPEPAPAPEQEAAAPGPAAGGEAPK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 3011.3813477,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 3011.38648,
  "ppm_error": -1.7,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1222,
  "peptide": "SEIDLFNIR",
  "proforma": "SEIDLFNIR",
  "protein_accession": "P08758",
  "protein_name": "Annexin A5",
  "measured_mz": 1106.58399,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1106.58405,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1223,
  "peptide": "SFAGNLNTYKR",
  "proforma": "SFAGNLNTYKR",
  "protein_accession": "Q01813",
  "protein_name": "ATP-dependent 6-phosphofructokinase, platelet type",
  "measured_mz": 1270.6538,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1270.65386,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1355,
  "peptide": "SFELFADKVPK",
  "proforma": "SFELFADKVPK",
  "protein_accession": "P62937",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase A",
  "measured_mz": 1280.68845,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1280.68852,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 965,
  "peptide": "SFQQSSLSR",
  "proforma": "SFQQSSLSR",
  "protein_accession": "P43243",
  "protein_name": "Matrin-3",
  "measured_mz": 1039.51665,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1039.5167,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1224,
  "peptide": "SFSTASAITPSVSR",
  "proforma": "SFSTASAITPSVSR",
  "protein_accession": "P13647",
  "protein_name": "Keratin, type II cytoskeletal 5",
  "measured_mz": 1410.7325,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1410.72233,
  "ppm_error": 7.21,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1225,
  "peptide": "SGAQASSTPLSPTR",
  "proforma": "SGAQASSTPLSPTR",
  "protein_accession": "P02545",
  "protein_name": "Prelamin-A/C",
  "measured_mz": 1359.68621,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1359.68628,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1016,
  "peptide": "SGGTTMYPGIADR",
  "proforma": "SGGTTMYPGIADR",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1325.61536,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1325.61543,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1017,
  "peptide": "SGGTTMYPGIADR",
  "proforma": "SGGTTMYPGIADR",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1325.61536,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1325.61543,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1227,
  "peptide": "SGGYSSGKQGR",
  "proforma": "SGGYSSGKQGR",
  "protein_accession": "Q15084",
  "protein_name": "Protein disulfide-isomerase A6",
  "measured_mz": 1083.51771,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1083.51776,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1356,
  "peptide": "SGKDYNVTANSK",
  "proforma": "SGKDYNVTANSK",
  "protein_accession": "P00338",
  "protein_name": "L-lactate dehydrogenase A chain",
  "measured_mz": 1283.62256,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1283.62262,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1228,
  "peptide": "SGKKLEDGPK",
  "proforma": "SGKKLEDGPK",
  "protein_accession": "P68104",
  "protein_name": "Elongation factor 1-alpha 1",
  "measured_mz": 1058.58399,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1058.58405,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1285,
  "peptide": "SGKVTKPK",
  "proforma": "SGKVTKPK",
  "protein_accession": "Q92913-3",
  "protein_name": "Isoform 3 of Fibroblast growth factor 13",
  "measured_mz": 844.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 844.52508,
  "ppm_error": -29.7,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1229,
  "peptide": "SGMFWLRF",
  "proforma": "SGMFWLRF",
  "protein_accession": "P31930",
  "protein_name": "Cytochrome b-c1 complex subunit 1, mitochondrial",
  "measured_mz": 1043.51309,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1043.51313,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1230,
  "peptide": "SGPFGQIFRPDNFVFGQSGAGNNWAK",
  "proforma": "SGPFGQIFRPDNFVFGQSGAGNNWAK",
  "protein_accession": "P07437",
  "protein_name": "Tubulin beta chain",
  "measured_mz": 2798.4248,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2798.34337,
  "ppm_error": 29.1,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1231,
  "peptide": "SGPFGQIFRPDNFVFGQSGAGNNWAK",
  "proforma": "SGPFGQIFRPDNFVFGQSGAGNNWAK",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 2798.4248,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2798.34337,
  "ppm_error": 29.1,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1286,
  "peptide": "SHYEEGPGK",
  "proforma": "SHYEEGPGK",
  "protein_accession": "P17665",
  "protein_name": "Cytochrome c oxidase subunit 7C, mitochondrial",
  "measured_mz": 1003.447998,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1003.44795,
  "ppm_error": 0.05,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1033,
  "peptide": "SIHFSSPVFTSR",
  "proforma": "[Acetyl]-SIHFSSPVFTSR",
  "protein_accession": "P08729",
  "protein_name": "Keratin, type II cytoskeletal 7",
  "measured_mz": 1406.71,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1406.70629,
  "ppm_error": 2.64,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 967,
  "peptide": "SKEFQLFSSPHGK",
  "proforma": "SKEFQLFSSPHGK",
  "protein_accession": "P02787",
  "protein_name": "Serotransferrin",
  "measured_mz": 1491.75898,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1491.75905,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1288,
  "peptide": "SKYLATASTMDHAR",
  "proforma": "SKYLATASTM[Oxidation]DHAR",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1567.7498779,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1567.75332,
  "ppm_error": -2.19,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1289,
  "peptide": "SKYLATASTMDHAR",
  "proforma": "SKYLATASTMDHAR",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1551.7574463,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1551.7584,
  "ppm_error": -0.62,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 968,
  "peptide": "SLAAEEEAAR",
  "proforma": "SLAAEEEAAR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1046.51123,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1046.51128,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1290,
  "peptide": "SLDQDPVVR",
  "proforma": "SLDQDPVVR",
  "protein_accession": "Q61699",
  "protein_name": "Heat shock protein 105 kDa",
  "measured_mz": 1028.5384521,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1028.5371,
  "ppm_error": 1.31,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1232,
  "peptide": "SLGSVQAPSYGARPVSSAASVYAGAGGSGSR",
  "proforma": "SLGSVQAPSYGARPVSSAASVYAGAGGSGSR",
  "protein_accession": "P05783",
  "protein_name": "Keratin, type I cytoskeletal 18",
  "measured_mz": 2854.3882,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2854.40782,
  "ppm_error": -6.87,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1233,
  "peptide": "SLTATGGNHVTAR",
  "proforma": "SLTATGGNHVTAR",
  "protein_accession": "Q14315",
  "protein_name": "Filamin-C",
  "measured_mz": 1284.66542,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1284.66549,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 969,
  "peptide": "SLVSVTKEGLELPEDEEEKKKMEESK",
  "proforma": "SLVSVTKEGLELPEDEEEKKKMEESK",
  "protein_accession": "P08238",
  "protein_name": "Heat shock protein HSP 90-beta",
  "measured_mz": 2991.50769,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2991.50784,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1234,
  "peptide": "SLYASSPGGVY",
  "proforma": "SLYASSPGGVY",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1100.52582,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1100.52587,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1235,
  "peptide": "SLYASSPGGVYATR",
  "proforma": "SLYASSPGGVYATR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1428.7123,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1428.71177,
  "ppm_error": 0.37,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1236,
  "peptide": "SNAQRQEISAAFK",
  "proforma": "SNAQRQEISAAFK",
  "protein_accession": "P08758",
  "protein_name": "Annexin A5",
  "measured_mz": 1449.74439,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1449.74447,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1237,
  "peptide": "SNMDNMFESYINNLR",
  "proforma": "SNMDNMFESYINNLR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1847.8475,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1847.8051,
  "ppm_error": 22.95,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1238,
  "peptide": "SNMDNMFESYINNLR",
  "proforma": "SNMDNMFESYINNLR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1847.8475,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1847.8051,
  "ppm_error": 22.95,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1239,
  "peptide": "SNMDNMFESYINNLR",
  "proforma": "[Oxidation]?SNMDNMFESYINNLR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1863.877,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1863.80001,
  "ppm_error": 41.31,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1240,
  "peptide": "SNMDNMFESYINNLR",
  "proforma": "[Oxidation]?SNMDNMFESYINNLR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1863.877,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1863.80001,
  "ppm_error": 41.31,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 970,
  "peptide": "SNYNLPMHK",
  "proforma": "SNYNLPMHK",
  "protein_accession": "P36578",
  "protein_name": "Large ribosomal subunit protein uL4",
  "measured_mz": 1103.53019,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1103.53024,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1294,
  "peptide": "SPGGVYATRSS",
  "proforma": "SPGGVYATRSS",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1081.52721,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1081.52726,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1291,
  "peptide": "SPTSSPTPQR",
  "proforma": "SPTSSPTPQR",
  "protein_accession": "P39053",
  "protein_name": "Dynamin-1",
  "measured_mz": 1057.5281982,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1057.52726,
  "ppm_error": 0.88,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1241,
  "peptide": "SQYEVMAEQNR",
  "proforma": "SQYEVMAEQNR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1354.61,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1354.60559,
  "ppm_error": 3.26,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1242,
  "peptide": "SSLGSHQLPR",
  "proforma": "SSLGSHQLPR",
  "protein_accession": "O95817",
  "protein_name": "BAG family molecular chaperone regulator 3",
  "measured_mz": 1081.57483,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1081.57488,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1295,
  "peptide": "STELLIR",
  "proforma": "STELLIR",
  "protein_accession": "Q6NXT2",
  "protein_name": "Histone H3.3C",
  "measured_mz": 831.0,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 831.49344,
  "ppm_error": -593.44,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "review",
  "flags": "mass_mismatch"
 },
 {
  "observation_id": 1243,
  "peptide": "STFSTNYR",
  "proforma": "STFSTNYR",
  "protein_accession": "P05783",
  "protein_name": "Keratin, type I cytoskeletal 18",
  "measured_mz": 975.4492,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 975.45304,
  "ppm_error": -3.93,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 971,
  "peptide": "STTTGHLIYK",
  "proforma": "STTTGHLIYK",
  "protein_accession": "P68104",
  "protein_name": "Elongation factor 1-alpha 1",
  "measured_mz": 1120.59964,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1120.5997,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1244,
  "peptide": "STVDAPTAAGR",
  "proforma": "STVDAPTAAGR",
  "protein_accession": "Q99832",
  "protein_name": "T-complex protein 1 subunit eta",
  "measured_mz": 1045.52721,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1045.52726,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 972,
  "peptide": "SVVTGGVQSVMGSR",
  "proforma": "SVVTGGVQSVMGSR",
  "protein_accession": "O60664",
  "protein_name": "Perilipin-3",
  "measured_mz": 1363.69975,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1363.69983,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 973,
  "peptide": "SYELPDGQVITIGNER",
  "proforma": "SYELPDGQVITIGNER",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1790.8907,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1790.89192,
  "ppm_error": -0.68,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1296,
  "peptide": "SYELPDGQVITIGNER",
  "proforma": "SYELPDGQVITIGNER",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1790.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1790.89192,
  "ppm_error": 4.51,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1297,
  "peptide": "SYELPDGQVITIGNER",
  "proforma": "SYELPDGQVITIGNER",
  "protein_accession": "P60710",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1790.8898926,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1790.89192,
  "ppm_error": -1.13,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1298,
  "peptide": "SYELPDGQVITIGNER",
  "proforma": "SYELPDGQVITIGNER",
  "protein_accession": "P62736",
  "protein_name": "Actin, aortic smooth muscle",
  "measured_mz": 1790.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1790.89192,
  "ppm_error": 4.51,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 974,
  "peptide": "SYKVSTSGPR",
  "proforma": "SYKVSTSGPR",
  "protein_accession": "P05787",
  "protein_name": "Keratin, type II cytoskeletal 8",
  "measured_mz": 1081.56359,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1081.56365,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1018,
  "peptide": "SYNTASNKTR",
  "proforma": "SYNTASNKTR",
  "protein_accession": "P49207",
  "protein_name": "Large ribosomal subunit protein eL34",
  "measured_mz": 1141.55957,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1141.55963,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1178,
  "peptide": "SYNTASNKTR",
  "proforma": "SYNTASNKTR",
  "protein_accession": "P49207",
  "protein_name": "Large ribosomal subunit protein eL34",
  "measured_mz": 1141.55957,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1141.55963,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1245,
  "peptide": "TALINSTGEEVAMR",
  "proforma": "TALINSTGEEVAMR",
  "protein_accession": "P02545",
  "protein_name": "Prelamin-A/C",
  "measured_mz": 1491.74709,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1491.74717,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1246,
  "peptide": "TAQEVETYRR",
  "proforma": "TAQEVETYRR",
  "protein_accession": "P17844",
  "protein_name": "Probable ATP-dependent RNA helicase DDX5",
  "measured_mz": 1252.62798,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1252.62804,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 975,
  "peptide": "TASTNNIAQAR",
  "proforma": "TASTNNIAQAR",
  "protein_accession": "Q9UBI6",
  "protein_name": "Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-12",
  "measured_mz": 1146.58611,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1146.58618,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1247,
  "peptide": "TATESFASDPILYRPVAVALDTK",
  "proforma": "TATESFASDPILYRPVAVALDTK",
  "protein_accession": "P14618",
  "protein_name": "Pyruvate kinase PKM",
  "measured_mz": 2465.252,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2465.29223,
  "ppm_error": -16.32,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 976,
  "peptide": "TAVCDIPPRGLK",
  "proforma": "TAVCDIPPRGLK",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 1269.6983,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1269.69837,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1300,
  "peptide": "TEAPAAAGPEAK",
  "proforma": "TEAPAAAGPEAK",
  "protein_accession": "Q91XV3",
  "protein_name": "Brain acid soluble protein 1",
  "measured_mz": 1112.5576172,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1112.55823,
  "ppm_error": -0.55,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1019,
  "peptide": "TEAPLNPKANREK",
  "proforma": "TEAPLNPKANREK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1467.79134,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.79142,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1020,
  "peptide": "TEAPLNPKANREK",
  "proforma": "TEAPLNPKANREK",
  "protein_accession": "P63261",
  "protein_name": "Actin, cytoplasmic 2",
  "measured_mz": 1467.79134,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.79142,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1021,
  "peptide": "TEAPLNPKANREK",
  "proforma": "TEAPLNPKANREK",
  "protein_accession": "Q9BYX7",
  "protein_name": "Putative beta-actin-like protein 3",
  "measured_mz": 1467.79134,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.79142,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1034,
  "peptide": "TELETAMGMIIDVFSR",
  "proforma": "[Acetyl]-TELETAMGMIIDVFSR",
  "protein_accession": "P25815",
  "protein_name": "Protein S100-P",
  "measured_mz": 1854.89,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1854.8976,
  "ppm_error": -4.1,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1301,
  "peptide": "TESVTSGPLSPEGSPSK",
  "proforma": "TESVTSGPLSPEGSPSK",
  "protein_accession": "Q9QYB8",
  "protein_name": "Beta-adducin",
  "measured_mz": 1659.8336182,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1659.80719,
  "ppm_error": 15.92,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1302,
  "peptide": "TEVTGDHIPTPQDLPQR",
  "proforma": "TEVTGDHIPTPQDLPQR",
  "protein_accession": "P56212",
  "protein_name": "cAMP-regulated phosphoprotein 19",
  "measured_mz": 1903.9577637,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1903.95083,
  "ppm_error": 3.64,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1303,
  "peptide": "TGHPGTVGPAGIR",
  "proforma": "[Oxidation]?TGHPGTVGPAGIR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1235.63,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1235.64911,
  "ppm_error": -15.47,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1304,
  "peptide": "TGHPGTVGPAGIR",
  "proforma": "[Oxidation]?TGHPGTVGPAGIR",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1235.63,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1235.64911,
  "ppm_error": -15.47,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1305,
  "peptide": "TGILDSIGRFFSGDR",
  "proforma": "TGILDSIGRFFSGDR",
  "protein_accession": "P02688",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1640.83,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1640.8391,
  "ppm_error": -5.54,
  "species": "Rattus norvegicus",
  "taxon_id": 10116,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1586/14789450.2013.814939",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1306,
  "peptide": "TGPNLHGLFGR",
  "proforma": "TGPNLHGLFGR",
  "protein_accession": "P62897",
  "protein_name": "Cytochrome c, somatic",
  "measured_mz": 1168.6220703,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1168.62217,
  "ppm_error": -0.08,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1307,
  "peptide": "TGPPGPSGISGPPGPPGPAGK",
  "proforma": "[Oxidation]^3?TGPPGPSGISGPPGPPGPAGK",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1829.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1829.90282,
  "ppm_error": -1.54,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1308,
  "peptide": "TGPPGPSGISGPPGPPGPAGK",
  "proforma": "[Oxidation]^4?TGPPGPSGISGPPGPPGPAGK",
  "protein_accession": "P08123",
  "protein_name": "Collagen alpha-2(I) chain",
  "measured_mz": 1845.91,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1845.89773,
  "ppm_error": 6.65,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1309,
  "peptide": "TGQAAGFSYTDANK",
  "proforma": "TGQAAGFSYTDANK",
  "protein_accession": "P62897",
  "protein_name": "Cytochrome c, somatic",
  "measured_mz": 1430.6519775,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1430.65465,
  "ppm_error": -1.87,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1310,
  "peptide": "TGQAAGFSYTDANKNK",
  "proforma": "TGQAAGFSYTDANKNK",
  "protein_accession": "P62897",
  "protein_name": "Cytochrome c, somatic",
  "measured_mz": 1672.7893066,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1672.79254,
  "ppm_error": -1.93,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 977,
  "peptide": "TGQIKEVER",
  "proforma": "TGQIKEVER",
  "protein_accession": "Q00610",
  "protein_name": "Clathrin heavy chain 1",
  "measured_mz": 1059.57924,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1059.5793,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 978,
  "peptide": "THILLFLPK",
  "proforma": "THILLFLPK",
  "protein_accession": "P07237",
  "protein_name": "Protein disulfide-isomerase",
  "measured_mz": 1081.67677,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1081.67683,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1248,
  "peptide": "THLAPYSDELR",
  "proforma": "THLAPYSDELR",
  "protein_accession": "P02647",
  "protein_name": "Apolipoprotein A-I",
  "measured_mz": 1301.651,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1301.64844,
  "ppm_error": 1.97,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1311,
  "peptide": "THLPGFVEQAGALK",
  "proforma": "THLPGFVEQAGALK",
  "protein_accession": "P99029",
  "protein_name": "Peroxiredoxin-5, mitochondrial",
  "measured_mz": 1467.8049316,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1467.79544,
  "ppm_error": 6.47,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1312,
  "peptide": "TIGGGDDSFNTFFSETGAGK",
  "proforma": "TIGGGDDSFNTFFSETGAGK",
  "protein_accession": "P68369",
  "protein_name": "Tubulin alpha-1A chain",
  "measured_mz": 2007.8914795,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2007.89304,
  "ppm_error": -0.78,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1313,
  "peptide": "TITLEVEPSDTIENVK",
  "proforma": "TITLEVEPSDTIENVK",
  "protein_accession": "P62983",
  "protein_name": "Ubiquitin-ribosomal protein eS31 fusion protein",
  "measured_mz": 1787.9238281,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1787.9273,
  "ppm_error": -1.94,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1314,
  "peptide": "TKEQLAALR",
  "proforma": "TKEQLAALR",
  "protein_accession": "O35143",
  "protein_name": "ATPase inhibitor, mitochondrial",
  "measured_mz": 1029.604248,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1029.60512,
  "ppm_error": -0.85,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 979,
  "peptide": "TKEVYELLDSPGK",
  "proforma": "TKEVYELLDSPGK",
  "protein_accession": "P22234",
  "protein_name": "Bifunctional phosphoribosylaminoimidazole carboxylase/phosphoribosylaminoimidazole succinocarboxamide synthetase",
  "measured_mz": 1478.77363,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1478.7737,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1249,
  "peptide": "TKFETEQALR",
  "proforma": "TKFETEQALR",
  "protein_accession": "Q04695",
  "protein_name": "Keratin, type I cytoskeletal 17",
  "measured_mz": 1222.639,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1222.64263,
  "ppm_error": -2.97,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1250,
  "peptide": "TKFETEQALR",
  "proforma": "TKFETEQALR",
  "protein_accession": "P08727",
  "protein_name": "Keratin, type I cytoskeletal 19",
  "measured_mz": 1222.639,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1222.64263,
  "ppm_error": -2.97,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1251,
  "peptide": "TKYEHELALR",
  "proforma": "TKYEHELALR",
  "protein_accession": "P08779",
  "protein_name": "Keratin, type I cytoskeletal 16",
  "measured_mz": 1259.674,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1259.67426,
  "ppm_error": -0.21,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1252,
  "peptide": "TLIQNCGASTIR",
  "proforma": "TLIQNCGASTIR",
  "protein_accession": "P49368",
  "protein_name": "T-complex protein 1 subunit gamma",
  "measured_mz": 1276.66773,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1276.6678,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1253,
  "peptide": "TLKLTTPTYGDLNHLVSATMSGVTTCLR",
  "proforma": "TLKLTTPTYGDLNHLVSATMSGVTTCLR",
  "protein_accession": "Q13885",
  "protein_name": "Tubulin beta-2A chain",
  "measured_mz": 2993.54331,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2993.54345,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1254,
  "peptide": "TLLIKTVETRDGQVINETSQHHDDLE",
  "proforma": "TLLIKTVETRDGQVINETSQHHDDLE",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 2991.50163,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2991.50178,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1315,
  "peptide": "TLNPVFNEQFTFK",
  "proforma": "TLNPVFNEQFTFK",
  "protein_accession": "P46096",
  "protein_name": "Synaptotagmin-1",
  "measured_mz": 1584.8375244,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1584.80567,
  "ppm_error": 20.1,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1316,
  "peptide": "TLSDYNIQK",
  "proforma": "TLSDYNIQK",
  "protein_accession": "P62983",
  "protein_name": "Ubiquitin-ribosomal protein eS31 fusion protein",
  "measured_mz": 1081.5435791,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1081.55242,
  "ppm_error": -8.17,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 980,
  "peptide": "TLVDIAKSQDAEVGDGTTSVTLLAAEFLK",
  "proforma": "TLVDIAKSQDAEVGDGTTSVTLLAAEFLK",
  "protein_accession": "Q99832",
  "protein_name": "T-complex protein 1 subunit eta",
  "measured_mz": 2992.57234,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2992.57249,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1317,
  "peptide": "TPPGSGEPPK",
  "proforma": "TPPGSGEPPK",
  "protein_accession": "P10637",
  "protein_name": "Microtubule-associated protein tau",
  "measured_mz": 966.4904785,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 966.48909,
  "ppm_error": 1.44,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1318,
  "peptide": "TPPPSQGK",
  "proforma": "TPPPSQGK",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 811.4307,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 811.43084,
  "ppm_error": -0.18,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 740,
  "peptide": "TPQQAQEVHEK",
  "proforma": "TPQQAQEVHEK",
  "protein_accession": "P60174",
  "protein_name": "Triosephosphate isomerase",
  "measured_mz": 1294.63854,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1294.6386,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1319,
  "peptide": "TQDENPVVHFFK",
  "proforma": "TQDENPVVHFFK",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1460.7138672,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1460.71686,
  "ppm_error": -2.05,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1320,
  "peptide": "TQDENPVVHFFK",
  "proforma": "TQDENPVVHFFK",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1460.7182,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1460.71686,
  "ppm_error": 0.92,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1321,
  "peptide": "TTEGPSATKPDDK",
  "proforma": "TTEGPSATKPDDK",
  "protein_accession": "Q7TSJ2",
  "protein_name": "Microtubule-associated protein 6",
  "measured_mz": 1346.6367188,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1346.64342,
  "ppm_error": -4.97,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1322,
  "peptide": "TTHYGSLPQK",
  "proforma": "TTHYGSLPQK",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1131.5786133,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1131.5793,
  "ppm_error": -0.61,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1323,
  "peptide": "TTHYGSLPQK",
  "proforma": "TTHYGSLPQK",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1131.58,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1131.5793,
  "ppm_error": 0.62,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1324,
  "peptide": "TTPGPGTAQAGDAAR",
  "proforma": "TTPGPGTAQAGDAAR",
  "protein_accession": "Q8R191",
  "protein_name": "Synaptogyrin-3",
  "measured_mz": 1370.6693115,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1370.66588,
  "ppm_error": 2.5,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1035,
  "peptide": "TTTFLQTSSSTFGGGSTR",
  "proforma": "[Acetyl]-TTTFLQTSSSTFGGGSTR",
  "protein_accession": "P19012",
  "protein_name": "Keratin, type I cytoskeletal 15",
  "measured_mz": 1877.8959,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1877.88756,
  "ppm_error": 4.44,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1325,
  "peptide": "TVKFKCPSSGTPNPTLR",
  "proforma": "TVKFKCPSSGTPNPTLR",
  "protein_accession": "P11362",
  "protein_name": "Fibroblast growth factor receptor 1",
  "measured_mz": 1832.95,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1832.96873,
  "ppm_error": -10.22,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 981,
  "peptide": "TVMPYISTTPAK",
  "proforma": "TVMPYISTTPAK",
  "protein_accession": "P05556",
  "protein_name": "Integrin beta-1",
  "measured_mz": 1308.68674,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1308.6868,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1326,
  "peptide": "TVPNDATQTK",
  "proforma": "TVPNDATQTK",
  "protein_accession": "P13595",
  "protein_name": "Neural cell adhesion molecule 1",
  "measured_mz": 1074.543457,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1074.54258,
  "ppm_error": 0.82,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1327,
  "peptide": "TVTAMDVVYALKR",
  "proforma": "TVTAMDVVYALKR",
  "protein_accession": "P62805",
  "protein_name": "Histone H4",
  "measured_mz": 1466.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1466.80356,
  "ppm_error": -2.43,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1328,
  "peptide": "TVTAMDVVYALKR",
  "proforma": "TVTAMDVVYALKR",
  "protein_accession": "P62805",
  "protein_name": "Histone H4",
  "measured_mz": 1466.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1466.80356,
  "ppm_error": -2.43,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1329,
  "peptide": "TVTDLENAYK",
  "proforma": "TVTDLENAYK",
  "protein_accession": "P20060",
  "protein_name": "Beta-hexosaminidase subunit beta",
  "measured_mz": 1153.5609131,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1153.57354,
  "ppm_error": -10.95,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 982,
  "peptide": "TYFPHFDLSHGSAQVK",
  "proforma": "TYFPHFDLSHGSAQVK",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1833.9,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1833.89186,
  "ppm_error": 4.44,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1330,
  "peptide": "TYFPHFDVSHGSAQVK",
  "proforma": "TYFPHFDVSHGSAQVK",
  "protein_accession": "P01942",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1819.8,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1819.87621,
  "ppm_error": -41.88,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1331,
  "peptide": "TYFPHFDVSHGSAQVK",
  "proforma": "TYFPHFDVSHGSAQVK",
  "protein_accession": "P01942",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1819.8702393,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1819.87621,
  "ppm_error": -3.28,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1255,
  "peptide": "TYSLGSALRPST",
  "proforma": "TYSLGSALRPST",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1252.65313,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1252.65319,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1256,
  "peptide": "TYSLGSALRPSTSR",
  "proforma": "TYSLGSALRPSTSR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 1495.78625,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1495.78633,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1257,
  "peptide": "TYSLGSALRPSTSRSLYASSPGGVYATR",
  "proforma": "TYSLGSALRPSTSRSLYASSPGGVYATR",
  "protein_accession": "P08670",
  "protein_name": "Vimentin",
  "measured_mz": 2905.48011,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2905.48026,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1332,
  "peptide": "VADALASAAGHLDDLPGALSALSDLHAHK",
  "proforma": "VADALASAAGHLDDLPGALSALSDLHAHK",
  "protein_accession": "P01942",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 2836.4,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2836.4588,
  "ppm_error": -20.73,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 983,
  "peptide": "VAEIEHAEKEK",
  "proforma": "VAEIEHAEKEK",
  "protein_accession": "P78371",
  "protein_name": "T-complex protein 1 subunit beta",
  "measured_mz": 1282.66369,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1282.66376,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 984,
  "peptide": "VAETANEEEVKK",
  "proforma": "VAETANEEEVKK",
  "protein_accession": "P61221",
  "protein_name": "ATP-binding cassette sub-family E member 1",
  "measured_mz": 1346.67973,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1346.6798,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 985,
  "peptide": "VAHALAEGLGVIACIGEKLDEREAGITEK",
  "proforma": "VAHALAEGLGVIACIGEKLDEREAGITEK",
  "protein_accession": "P60174",
  "protein_name": "Triosephosphate isomerase",
  "measured_mz": 2992.57705,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2992.5772,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1333,
  "peptide": "VAPEEHPVLLTEAPLNPK",
  "proforma": "VAPEEHPVLLTEAPLNPK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1954.1,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1954.0644,
  "ppm_error": 18.22,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1334,
  "peptide": "VAPEEHPVLLTEAPLNPK",
  "proforma": "VAPEEHPVLLTEAPLNPK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1954.06,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1954.0644,
  "ppm_error": -2.25,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1335,
  "peptide": "VAPEEHPVLLTEAPLNPK",
  "proforma": "VAPEEHPVLLTEAPLNPK",
  "protein_accession": "P60709",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1954.06,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1954.0644,
  "ppm_error": -2.25,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1336,
  "peptide": "VAPEEHPVLLTEAPLNPK",
  "proforma": "VAPEEHPVLLTEAPLNPK",
  "protein_accession": "P60710",
  "protein_name": "Actin, cytoplasmic 1",
  "measured_mz": 1954.0603027,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1954.0644,
  "ppm_error": -2.1,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1337,
  "peptide": "VAPPGLTQIPQIQK",
  "proforma": "VAPPGLTQIPQIQK",
  "protein_accession": "P14094",
  "protein_name": "Sodium/potassium-transporting ATPase subunit beta-1",
  "measured_mz": 1489.8952637,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1489.87369,
  "ppm_error": 14.48,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 986,
  "peptide": "VAVTEGCQPSR",
  "proforma": "VAVTEGCQPSR",
  "protein_accession": "O75369",
  "protein_name": "Filamin-B",
  "measured_mz": 1146.55713,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1146.55718,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 987,
  "peptide": "VDATEESDLAQQYGVR",
  "proforma": "VDATEESDLAQQYGVR",
  "protein_accession": "P07237",
  "protein_name": "Protein disulfide-isomerase",
  "measured_mz": 1780.84,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1780.8348,
  "ppm_error": 2.92,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1338,
  "peptide": "VDLVDESGYVPGYK",
  "proforma": "VDLVDESGYVPGYK",
  "protein_accession": "Q7TQD2",
  "protein_name": "Tubulin polymerization-promoting protein",
  "measured_mz": 1540.751709,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1540.75297,
  "ppm_error": -0.82,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1339,
  "peptide": "VDSSNGFLIDGYPR",
  "proforma": "VDSSNGFLIDGYPR",
  "protein_accession": "Q9R0Y5",
  "protein_name": "Adenylate kinase isoenzyme 1",
  "measured_mz": 1539.7406006,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1539.7438,
  "ppm_error": -2.08,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1258,
  "peptide": "VELEDWNGR",
  "proforma": "VELEDWNGR",
  "protein_accession": "P02679",
  "protein_name": "Fibrinogen gamma chain",
  "measured_mz": 1117.507,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1117.52726,
  "ppm_error": -18.13,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 988,
  "peptide": "VFLENVIR",
  "proforma": "VFLENVIR",
  "protein_accession": "P62805",
  "protein_name": "Histone H4",
  "measured_mz": 989.57,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 989.57784,
  "ppm_error": -7.92,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1259,
  "peptide": "VGAGAPVYLAAVLEYLTAEILELAGNAAR",
  "proforma": "VGAGAPVYLAAVLEYLTAEILELAGNAAR",
  "protein_accession": "P0C0S8",
  "protein_name": "Histone H2A type 1",
  "measured_mz": 2915.5,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2915.58769,
  "ppm_error": -30.07,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1343,
  "peptide": "VGAGAPVYLAAVLEYLTAEILELAGNAAR",
  "proforma": "VGAGAPVYLAAVLEYLTAEILELAGNAAR",
  "protein_accession": "P0C0S8",
  "protein_name": "Histone H2A type 1",
  "measured_mz": 2915.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2915.58769,
  "ppm_error": 4.22,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1344,
  "peptide": "VGAHAGEYGAEALER",
  "proforma": "VGAHAGEYGAEALER",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1529.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1529.7343,
  "ppm_error": -22.42,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1345,
  "peptide": "VGAHAGEYGAEALER",
  "proforma": "VGAHAGEYGAEALER",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1529.7,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1529.7343,
  "ppm_error": -22.42,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1346,
  "peptide": "VGAHAGEYGAEALER",
  "proforma": "VGAHAGEYGAEALER",
  "protein_accession": "P69905",
  "protein_name": "Hemoglobin subunit alpha",
  "measured_mz": 1529.74,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1529.7343,
  "ppm_error": 3.73,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1260,
  "peptide": "VGDYGSLSGREK",
  "proforma": "VGDYGSLSGREK",
  "protein_accession": "Q9UBR2",
  "protein_name": "Cathepsin Z",
  "measured_mz": 1267.62764,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1267.62771,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1261,
  "peptide": "VGEYSLYIGR",
  "proforma": "VGEYSLYIGR",
  "protein_accession": "P02743",
  "protein_name": "Serum amyloid P-component",
  "measured_mz": 1156.597,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1156.5997,
  "ppm_error": -2.33,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1347,
  "peptide": "VGPPGPSGNAGPPGPPGPAGK",
  "proforma": "[Oxidation]^3?VGPPGPSGNAGPPGPPGPAGK",
  "protein_accession": "P02452",
  "protein_name": "Collagen alpha-1(I) chain",
  "measured_mz": 1812.88,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1812.8875,
  "ppm_error": -4.14,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1348,
  "peptide": "VGTPTDIHSEK",
  "proforma": "VGTPTDIHSEK",
  "protein_accession": "Q8C8R3",
  "protein_name": "Ankyrin-2",
  "measured_mz": 1183.6077881,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1183.59534,
  "ppm_error": 10.51,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1349,
  "peptide": "VIGPGYPIR",
  "proforma": "VIGPGYPIR",
  "protein_accession": "Q61885",
  "protein_name": "Myelin-oligodendrocyte glycoprotein",
  "measured_mz": 971.5631104,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 971.56728,
  "ppm_error": -4.29,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 989,
  "peptide": "VIHDNFGIVEGLMTTVHAITATQK",
  "proforma": "VIHDNFGIVEGLMTTVHAITATQK",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 2595.35981,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2595.35993,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1350,
  "peptide": "VITAFNDGLNHLDSLK",
  "proforma": "VITAFNDGLNHLDSLK",
  "protein_accession": "P02088",
  "protein_name": "Hemoglobin subunit beta-1",
  "measured_mz": 1756.9194336,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1756.92283,
  "ppm_error": -1.93,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1262,
  "peptide": "VITIMQNPR",
  "proforma": "VITIMQNPR",
  "protein_accession": "P62269",
  "protein_name": "Small ribosomal subunit protein uS13",
  "measured_mz": 1071.59787,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1071.59793,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1351,
  "peptide": "VLYPNDNFFEGK",
  "proforma": "VLYPNDNFFEGK",
  "protein_accession": "Q8CI94",
  "protein_name": "Glycogen phosphorylase, brain form",
  "measured_mz": 1442.7043457,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1442.69506,
  "ppm_error": 6.44,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1036,
  "peptide": "VNPTVFFDIAVDGEPLGR",
  "proforma": "[Acetyl]-VNPTVFFDIAVDGEPLGR",
  "protein_accession": "P62937",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase A",
  "measured_mz": 1987.9899,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1988.01237,
  "ppm_error": -11.3,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1352,
  "peptide": "VNPTVFFDITADDEPLGR",
  "proforma": "VNPTVFFDITADDEPLGR",
  "protein_accession": "P17742",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase A",
  "measured_mz": 2005.9847412,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2005.98655,
  "ppm_error": -0.9,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1353,
  "peptide": "VNSDEVGGEALGR",
  "proforma": "VNSDEVGGEALGR",
  "protein_accession": "P02088",
  "protein_name": "Hemoglobin subunit beta-1",
  "measured_mz": 1302.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1302.62843,
  "ppm_error": -21.83,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 990,
  "peptide": "VPQVSTPTLVEVSR",
  "proforma": "VPQVSTPTLVEVSR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 1511.7955,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1511.84278,
  "ppm_error": -31.28,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1263,
  "peptide": "VQREKANGTTV",
  "proforma": "VQREKANGTTV",
  "protein_accession": "P61254",
  "protein_name": "Large ribosomal subunit protein uL24",
  "measured_mz": 1202.64871,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1202.64878,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1264,
  "peptide": "VRGEVAPDAK",
  "proforma": "VRGEVAPDAK",
  "protein_accession": "P09382",
  "protein_name": "Galectin-1",
  "measured_mz": 1041.56868,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1041.56873,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1354,
  "peptide": "VSFELFADKVPK",
  "proforma": "VSFELFADKVPK",
  "protein_accession": "P17742",
  "protein_name": "Peptidyl-prolyl cis-trans isomerase A",
  "measured_mz": 1379.7554932,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1379.75693,
  "ppm_error": -1.04,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1265,
  "peptide": "VSVADHSLHLSK",
  "proforma": "VSVADHSLHLSK",
  "protein_accession": "Q13162",
  "protein_name": "Peroxiredoxin-4",
  "measured_mz": 1292.69566,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1292.69573,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1357,
  "peptide": "VTHAVVTVPAYFNDAQR",
  "proforma": "VTHAVVTVPAYFNDAQR",
  "protein_accession": "P11021",
  "protein_name": "Endoplasmic reticulum chaperone BiP",
  "measured_mz": 1887.95,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1887.97117,
  "ppm_error": -11.21,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1007/s00216-010-3554-6",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1358,
  "peptide": "VTIAQGGVLPNIQAVLLPK",
  "proforma": "VTIAQGGVLPNIQAVLLPK",
  "protein_accession": "Q8CGP5",
  "protein_name": "Histone H2A type 1-F",
  "measured_mz": 1931.1644287,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1931.16881,
  "ppm_error": -2.27,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1359,
  "peptide": "VTKPKEEK",
  "proforma": "VTKPKEEK",
  "protein_accession": "Q92913-3",
  "protein_name": "Isoform 3 of Fibroblast growth factor 13",
  "measured_mz": 958.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 958.55677,
  "ppm_error": 45.1,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1002/pmic.200800624",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1266,
  "peptide": "VVACNLYPFVK",
  "proforma": "VVACNLYPFVK",
  "protein_accession": "P31939",
  "protein_name": "Bifunctional purine biosynthesis protein ATIC",
  "measured_mz": 1252.67578,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1252.67584,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1267,
  "peptide": "VVDLMAHMASKE",
  "proforma": "VVDLMAHM[Oxidation]ASKE",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1346.6442,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1346.64428,
  "ppm_error": -0.06,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1268,
  "peptide": "VVDLMAHMASKE",
  "proforma": "VVDLMAHMASKE",
  "protein_accession": "P04406",
  "protein_name": "Glyceraldehyde-3-phosphate dehydrogenase",
  "measured_mz": 1330.6493,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1330.64937,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1269,
  "peptide": "VVHIMDFQR",
  "proforma": "VVHIMDFQR",
  "protein_accession": "P43243",
  "protein_name": "Matrin-3",
  "measured_mz": 1144.59312,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1144.59318,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1270,
  "peptide": "VVSSIEQKTEGAEK",
  "proforma": "VVSSIEQKTEGAEK",
  "protein_accession": "P63104",
  "protein_name": "14-3-3 protein zeta/delta",
  "measured_mz": 1504.78525,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1504.78533,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1271,
  "peptide": "VWQVTIGTR",
  "proforma": "VWQVTIGTR",
  "protein_accession": "P63244",
  "protein_name": "Small ribosomal subunit protein RACK1",
  "measured_mz": 1059.5945,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1059.59456,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1272,
  "peptide": "WLQGSQELPR",
  "proforma": "WLQGSQELPR",
  "protein_accession": "P01877",
  "protein_name": "Immunoglobulin heavy constant alpha 2",
  "measured_mz": 1213.7753,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1213.6324,
  "ppm_error": 117.75,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/pr3003672",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1273,
  "peptide": "WLQGSQELPR",
  "proforma": "WLQGSQELPR",
  "protein_accession": "P01876",
  "protein_name": "Immunoglobulin heavy constant alpha 1",
  "measured_mz": 1213.6259,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1213.6324,
  "ppm_error": -5.35,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1274,
  "peptide": "WQAVLAQTDVR",
  "proforma": "WQAVLAQTDVR",
  "protein_accession": "Q15149",
  "protein_name": "Plectin",
  "measured_mz": 1286.6851,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1286.68516,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1275,
  "peptide": "YALQMEQLNGILLHLESELAQTR",
  "proforma": "YALQMEQLNGILLHLESELAQTR",
  "protein_accession": "P05783",
  "protein_name": "Keratin, type I cytoskeletal 18",
  "measured_mz": 2670.3108,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2670.39196,
  "ppm_error": -30.39,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1276,
  "peptide": "YALYDATYETK",
  "proforma": "YALYDATYETK",
  "protein_accession": "P23528",
  "protein_name": "Cofilin-1",
  "measured_mz": 1337.62591,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1337.62597,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 991,
  "peptide": "YEELQVTAGR",
  "proforma": "YEELQVTAGR",
  "protein_accession": "O95678",
  "protein_name": "Keratin, type II cytoskeletal 75",
  "measured_mz": 1165.583,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1165.58478,
  "ppm_error": -1.53,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 992,
  "peptide": "YEELQVTAGR",
  "proforma": "YEELQVTAGR",
  "protein_accession": "P02538",
  "protein_name": "Keratin, type II cytoskeletal 6A",
  "measured_mz": 1165.583,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1165.58478,
  "ppm_error": -1.53,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1361,
  "peptide": "YGLVGGEGGK",
  "proforma": "YGLVGGEGGK",
  "protein_accession": "Q8BYI9",
  "protein_name": "Tenascin-R",
  "measured_mz": 936.4899902,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 936.47852,
  "ppm_error": 12.25,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1277,
  "peptide": "YISPDQLADLYK",
  "proforma": "YISPDQLADLYK",
  "protein_accession": "P06733",
  "protein_name": "Alpha-enolase",
  "measured_mz": 1425.72596,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1425.72602,
  "ppm_error": -0.04,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1362,
  "peptide": "YLATASTMDHAR",
  "proforma": "YLATASTM[Oxidation]DHAR",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1352.6237793,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1352.62633,
  "ppm_error": -1.88,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1363,
  "peptide": "YLATASTMDHAR",
  "proforma": "YLATASTMDHAR",
  "protein_accession": "P04370",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1336.6300049,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1336.63141,
  "ppm_error": -1.05,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1364,
  "peptide": "YLATASTMDHAR",
  "proforma": "YLATASTMDHAR",
  "protein_accession": "Q09J72",
  "protein_name": "Myelin basic protein",
  "measured_mz": 1336.6321,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1336.63141,
  "ppm_error": 0.52,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1002/rcm.5135",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1278,
  "peptide": "YLSEVASGDNK",
  "proforma": "YLSEVASGDNK",
  "protein_accession": "P31946",
  "protein_name": "14-3-3 protein beta/alpha",
  "measured_mz": 1182.56365,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1182.56371,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 993,
  "peptide": "YLYEIAR",
  "proforma": "YLYEIAR",
  "protein_accession": "P02768",
  "protein_name": "Albumin",
  "measured_mz": 927.4923,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 927.49344,
  "ppm_error": -1.23,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 994,
  "peptide": "YNTYAYVGLTEGPSPGDFR",
  "proforma": "YNTYAYVGLTEGPSPGDFR",
  "protein_accession": "Q8IWL2",
  "protein_name": "Pulmonary surfactant-associated protein A1",
  "measured_mz": 2106.9856,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2106.97671,
  "ppm_error": 4.22,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Lung",
  "uberon_id": "UBERON:0002048",
  "condition": "",
  "doi": "10.1002/pmic.200800495",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1365,
  "peptide": "YRPGTVALR",
  "proforma": "YRPGTVALR",
  "protein_accession": "P02301",
  "protein_name": "Histone H3.3C",
  "measured_mz": 1032.5955811,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1032.59489,
  "ppm_error": 0.67,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1366,
  "peptide": "YRPGTVALR",
  "proforma": "YRPGTVALR",
  "protein_accession": "P68433",
  "protein_name": "Histone H3.1",
  "measured_mz": 1032.6,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1032.59489,
  "ppm_error": 4.95,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Tumour (site not stated)",
  "uberon_id": "",
  "condition": "Tumour",
  "doi": "10.1016/j.ymeth.2011.03.007",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1367,
  "peptide": "YRPGTVALR",
  "proforma": "YRPGTVALR",
  "protein_accession": "Q6NXT2",
  "protein_name": "Histone H3.3C",
  "measured_mz": 1032.59,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1032.59489,
  "ppm_error": -4.74,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Pancreas",
  "uberon_id": "UBERON:0001264",
  "condition": "Pancreatic tumour",
  "doi": "10.1021/pr900522m",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1368,
  "peptide": "YSMVGGNLVINNPDK",
  "proforma": "YSM[Oxidation]VGGNLVINNPDK",
  "protein_accession": "P12960",
  "protein_name": "Contactin-1",
  "measured_mz": 1636.7827148,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1636.79993,
  "ppm_error": -10.52,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 },
 {
  "observation_id": 1369,
  "peptide": "YSQVLANGLDNK",
  "proforma": "YSQVLANGLDNK",
  "protein_accession": "P62270",
  "protein_name": "Small ribosomal subunit protein uS13",
  "measured_mz": 1321.6965332,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1321.67466,
  "ppm_error": 16.55,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 1370,
  "peptide": "YTPSGQSGAAASESLFISNHAY",
  "proforma": "YTPSGQSGAAASESLFISNHAY",
  "protein_accession": "P05064",
  "protein_name": "Fructose-bisphosphate aldolase A",
  "measured_mz": 2258.0302734,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 2258.03602,
  "ppm_error": -2.54,
  "species": "Mus musculus",
  "taxon_id": 10090,
  "tissue": "Brain",
  "uberon_id": "UBERON:0000955",
  "condition": "",
  "doi": "10.1021/ac503952q",
  "status": "approved",
  "flags": ""
 },
 {
  "observation_id": 851,
  "peptide": "YYGYTGAFR",
  "proforma": "YYGYTGAFR",
  "protein_accession": "P02787",
  "protein_name": "Serotransferrin",
  "measured_mz": 1097.50502,
  "charge": 1,
  "adduct": "H",
  "theoretical_mz": 1097.50507,
  "ppm_error": -0.05,
  "species": "Homo sapiens",
  "taxon_id": 9606,
  "tissue": "Breast",
  "uberon_id": "UBERON:0000310",
  "condition": "Breast tumour",
  "doi": "10.1021/ac504503x",
  "status": "approved",
  "flags": "reported_theoretical_differs"
 }
]