{"id":819,"sequence":"LHFFMPGFAPLTSR","proforma":"LHFFM[Oxidation]PGFAPLTSR","modifications":[{"name":"Oxidation","count":1,"n_term":false,"unimod":35,"position":5,"residues":"M"}],"mods_ambiguous":false,"neutral_mass":1635.8231688837,"mh":1636.83045,"url":"https://www.msipep.com/peptide/819/"}