{"id":1083,"sequence":"TGPPGPSGISGPPGPPGPAGK","proforma":"[Oxidation]^3?TGPPGPSGISGPPGPPGPAGK","modifications":[{"name":"Oxidation","count":3,"n_term":false,"unimod":35,"position":null,"residues":"P"}],"mods_ambiguous":false,"neutral_mass":1828.8955414637,"mh":1829.90282,"url":"https://www.msipep.com/peptide/1083/"}