Search › Peptide

[Oxidation]^2?GPNGEAGSAGPPGPPGLR

Sequence: GPNGEAGSAGPPGPPGLR (18 residues)
Modifications: 2× Oxidation (P) Unimod:35
Monoisotopic mass: 1618.76995 Da
Calculated ions: [M+H]+ 1619.7772 · [M+Na]+ 1641.7592 · [M+K]+ 1657.7331 · [M+2H]2+ 810.3922

Position in protein

Collagen alpha-2(I) chain residues 382–399 of 1366

Protein	Measured m/z	Calc. m/z	ppm	Species · tissue	Source	Status
Collagen alpha-2(I) chain UniProt P08123	1619.7700	1619.7772	-4.5	Homo sapiens (human) · Pancreas · Pancreatic tumour	10.1007/s00216-010-3554-6	Approved Reported theoretical m/z differs from the calculated value