This peptide is residues 9-36 of glucagon-like peptide 1 (GLP-1). GLP-1 is a neuroendocrine hormone derived from preproglucagon secreted by intestinal L cells. GLP-1 stimulates glucose-dependent insulin secretion and inhibits glucagon secretion.
H - Glu - Gly - Thr - Phe - Thr - Ser - Asp - Val - Ser - Ser - Tyr - Leu - Glu - Gly - Gln - Ala - Ala - Lys - Glu - Phe - Ile - Ala - Trp - Leu - Val - Lys - Gly - Arg - NH2