Proinsulin C-peptide human acetate (Proinsulin C-peptide human acetate (33017-11-7 Free base)) is a polypeptide of 31 amino acid residues that links the A and B chains of proinsulin to ensure proper folding, has biological activity and regulates cellular functions.

Proinsulin C-peptide (human) is a 31-amino acid peptide that connects the Proinsulin a and B chains, ensuring its proper folding, biological activity, and regulation of cellular functions.

Human proinsulin, the single-chain peptide precursor of insulin, consists of the insulin A and B chains connected by the 31 amino acid C-peptide. Cleavage of proinsulin by proteolytic enzymes produces insulin and free C-peptide.