GIP (3-42), human

This peptide is from amino acid 3-42 of the full length 42-amino acid long GIP (Glucose-dependent Insulinotropic Polypeptide or also known as Gastric Inhibitory Polypeptide). The in-vivo degradation of the first two N-terminal amino acids (Tyr-Ala) by the enzyme dipeptidyl peptidase IV (DPP IV) results in making GIP (3-42) a potent antagonist as opposed to the agonist full length GIP on the GIP receptor.