{"id":1431,"sequence":"MNVLADALK","proforma":"M[Oxidation]NVLADALK","modifications":[{"name":"Oxidation","count":1,"c_term":false,"n_term":false,"unimod":35,"position":1,"residues":"M"}],"mods_ambiguous":false,"neutral_mass":989.5215671537,"mh":990.52884,"url":"https://msipep.com/peptide/1431/"}