{"id":639,"sequence":"FMTILRR","proforma":"[Oxidation]?FMTILRR","modifications":[{"name":"Oxidation","count":1,"n_term":false,"unimod":35,"position":null,"residues":"M"}],"mods_ambiguous":false,"neutral_mass":951.5324066137,"mh":952.53968,"url":"https://www.msipep.com/peptide/639/"}