Sequence:

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

Family Description:


Exendin-4, originally isolated from Heloderma suspectum venom, differs from exendin-3 by only 2 N-terminal amino acid substitutions. This polypeptide causes an increase in acinar cAMP without stimulating amylase release. Exendin-4 and glucagon-like peptide 1 (7-36) amide bind with similar affinity to the glucagon-like peptide 1 receptor. Moreover, exendin-4 is also considered for clinical use in the treatment of type 2 diabetes.