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[Oxidation]^3?AGEDGHPGKPGRPGER

Sequence: AGEDGHPGKPGRPGER (16 residues)
Modifications: 3× Oxidation (P) Unimod:35
Monoisotopic mass: 1663.76626 Da
Calculated ions: [M+H]+ 1664.7735 · [M+Na]+ 1686.7555 · [M+K]+ 1702.7294 · [M+2H]2+ 832.8904

Position in protein

Collagen alpha-2(I) chain residues 141–156 of 1366

Protein	Measured m/z	Calc. m/z	ppm	Species · tissue	Source	Status
Collagen alpha-2(I) chain UniProt P08123	1664.7200	1664.7735	-32.2	Homo sapiens (human) · Pancreas · Pancreatic tumour	10.1007/s00216-010-3554-6	Approved Reported theoretical m/z differs from the calculated value