Exenatide Acetate (Exendin-4)

H-His-Gly-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Leu-Ser-Lys-Gln-Met-Glu-Glu-Glu-Ala-Val-Arg-Leu-Phe-Ile-Glu-Trp-Leu-Lys-Asn-Gly-Gly-Pro-Ser-Ser-Gly-Ala-Pro-Pro-Pro-Ser-NH2

CCC (C) C (CNC (CCC (=O) O) CN[CH]CNC (CC (C) C) CNC (CCCCN) CNC (CC (=O) N) CNCCNCCN1CCCC1CNC (CNC (CNCCN[CH]CN2CCCC2CN3CCCC3CN4CCCC4CNC (CN) CO) CO) CO) NC[CH]NCC (CC (C) C) NC[CH]

Exenatide Acetate (Exendin-4), a 39-amino acid peptide originally isolated from the salivary glands of the Gila monster (Heloderma suspectum), differs from exendin-3 only in two positions close to the N-terminus.