Search › Peptide

[Oxidation]^2?RGPNGEAGSAGPPGPPGLR

Sequence: RGPNGEAGSAGPPGPPGLR (19 residues)
Modifications: 2× Oxidation (P) Unimod:35
Monoisotopic mass: 1774.87106 Da
Calculated ions: [M+H]+ 1775.8783 · [M+Na]+ 1797.8603 · [M+K]+ 1813.8342 · [M+2H]2+ 888.4428

Position in protein

Collagen alpha-2(I) chain residues 381–399 of 1366

Protein	Measured m/z	Calc. m/z	ppm	Species · tissue	Source	Status
Collagen alpha-2(I) chain UniProt P08123	1775.8600	1775.8783	-10.3	Homo sapiens (human) · Pancreas · Pancreatic tumour	10.1007/s00216-010-3554-6	Approved Reported theoretical m/z differs from the calculated value