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Glucagon hormone family
Additional recommended knowledge
A number of polypeptidic hormones, mainly expressed in the intestine or the pancreas, belong to a group of these structurally related peptides. Once such hormone, glucagon is widely distributed and produced in the alpha-cells of pancreatic islets. It affects glucose metabolism in the liver by inhibiting glycogen synthesis, stimulating glycogenolysis and enchancing gluconeogenesis. It also increases mobilisation of glucose, free fatty acids and ketone bodies, which are metabolites produced in excess in diabetes mellitus. Glucagon is produced, like other peptide hormones, as part of a larger precursor (preproglucagon), which is cleaved to produce glucagon, glucagon-like protein I and glucagon-like protein II. The structure of glucagon itself is fully conserved in all known mammalian species. Other members of the structurally similar group include glicentin precursor, secretin, gastric inhibitory peptide, vasoactive intestinal peptide (VIP), prealbumin, peptide HI-27 and growth hormone releasing factor.
Human hormones from this family
ADCYAP1; GCG; GHRH; GIP; SCT; VIP;
This article includes text from the public domain Pfam and InterPro IPR000532
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Glucagon_hormone_family". A list of authors is available in Wikipedia.|