{"id":1332,"sequence":"MFGGPGTASRPSSS","proforma":"M[Oxidation]FGGPGTASRPSSS","modifications":[{"name":"Oxidation","count":1,"n_term":false,"unimod":35,"position":1,"residues":"M"}],"mods_ambiguous":false,"neutral_mass":1353.5983139137,"mh":1354.60559,"url":"https://www.msipep.com/peptide/1332/"}