{"id":1277,"sequence":"GALSLQGSIMTVGEK","proforma":"[Oxidation]?GALSLQGSIMTVGEK","modifications":[{"name":"Oxidation","count":1,"n_term":false,"unimod":35,"position":null,"residues":"M"}],"mods_ambiguous":false,"neutral_mass":1505.7759439237,"mh":1506.78322,"url":"https://msipep.com/peptide/1277/"}