[Term] id: PR:000050339 name: insulin hormone def: "A proinsulin that has had the propeptide (C-peptide) excised, leaving the A chain (example: UniProtKB:P01308, 90-110) and B chain (example: UniProtKB:P01308, 25-54) connected by crosslinks." [PRO:DAN] comment: Category=modification. Requested by=MAxO. Note: Though the final product resembles a complex, insulin is produced directly from a single chain without going through an intermediate where the A chain and B chain are free entities. synonym: "insulin" EXACT PRO-short-label [PRO:DAN] is_a: PR:000020310 ! proinsulin