{"id":848,"sequence":"NHKGGVPPQR","proforma":"[Oxidation]?NHKGGVPPQR","modifications":[{"name":"Oxidation","count":1,"n_term":false,"unimod":35,"position":null,"residues":"HW"}],"mods_ambiguous":false,"neutral_mass":1104.5788392137,"mh":1105.58612,"url":"https://msipep.com/peptide/848/"}