title: [Proinsulin].
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001681:Biological Assay; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D007109:Immunity; D007328:Insulin / Q000097:blood / Q000302:isolation & purification / Q000502:physiology; D010455:Peptides / Q000097:blood
chemical_list: D007328:Insulin; D010455:Peptides