{"id":592,"sequence":"AMGIMNSFVNDIFER","proforma":"[Oxidation]^2?AMGIMNSFVNDIFER","modifications":[{"name":"Oxidation","count":2,"n_term":false,"unimod":35,"position":null,"residues":"M"}],"mods_ambiguous":false,"neutral_mass":1774.8018413837,"mh":1775.80912,"url":"https://www.msipep.com/peptide/592/"}