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[Oxidation]^3?TGPPGPSGISGPPGPPGPAGK

Sequence: TGPPGPSGISGPPGPPGPAGK (21 residues)
Modifications: 3× Oxidation (P) Unimod:35
Monoisotopic mass: 1828.89554 Da
Calculated ions: [M+H]+ 1829.9028 · [M+Na]+ 1851.8848 · [M+K]+ 1867.8587 · [M+2H]2+ 915.4550

Position in protein

Collagen alpha-2(I) chain residues 795–815 of 1366

Protein	Measured m/z	Calc. m/z	ppm	Species · tissue	Source	Status
Collagen alpha-2(I) chain UniProt P08123	1829.9000	1829.9028	-1.5	Homo sapiens (human) · Pancreas · Pancreatic tumour	10.1007/s00216-010-3554-6	Approved Reported theoretical m/z differs from the calculated value