Description_x000D_ General description_x000D_ Glucose-dependent insulinotropic polypeptide (GIP) is a 42-amino acid gastrointestinal regulatory peptide, expressed in K cells of the small intestine and in cells of the submandibular salivary gland._x000D_ Immunogen_x000D_ Gastric Inhibitory Peptide (GIP), synthetic peptide_x000D_ Application_x000D_ Gastric inhibitory peptide has been used in enzyme immunoassay._x000D_ Biochem/physiol Actions_x000D_ In the presence of glucose, glucose-dependent insulinotropic polypeptide (GIP) induces insulin secretion. It acts as an antagonist of the human GIP receptor. Aberrations in GIP are associated with visceral fat accumulation.