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n/a Ensembl n/a n/a UniProt n a n/a RefSeq (mRNA) n/a n/a RefSeq (protein) n/a n/a Location (UCSC) n/a n/a PubMed search n/a n/a Wikidata View/Edit Human Glucagon is a peptide hormone, produced by alpha cells of the pancreas. It raises the concentration of glucose and fatty acids in the bloodstream and is considered to be the main catabolic hormone of the body. It is also used as a medication ...
Glucagon has an antagonistic effect and increases phosphorylation, deactivation, thereby inhibiting ACC and slowing fat synthesis. Affecting ACC affects the rate of acetyl-CoA conversion to malonyl-CoA. Increased malonyl-CoA level pushes the equilibrium over to increase production of fatty acids through biosynthesis.
Fru-2,6-P 2 strongly activates glucose breakdown in glycolysis through allosteric modulation (activation) of phosphofructokinase 1 (PFK-1).Elevated expression of Fru-2,6-P 2 levels in the liver allosterically activates phosphofructokinase 1 by increasing the enzyme’s affinity for fructose 6-phosphate, while decreasing its affinity for inhibitory ATP and citrate.
Glucagon in the liver stimulates glycogenolysis when the blood glucose is lowered, known as hypoglycemia. [12] The glycogen in the liver can function as a backup source of glucose between meals. [2] Liver glycogen mainly serves the central nervous system. Adrenaline stimulates the breakdown of glycogen in the skeletal muscle during exercise. [12]
PEPCK-C is enhanced, both in terms of its production and activation, by many factors. Transcription of the PEPCK-C gene is stimulated by glucagon, glucocorticoids, retinoic acid, and adenosine 3',5'-monophosphate , while it is inhibited by insulin. [24]
In 1982, they published their discovery that the gene for proglucagon actually codes for three peptides: glucagon and two novel peptides. [27] Those two novel peptides were later isolated, identified, and investigated by other researchers, and are now known as glucagon-like peptide-1 and glucagon-like peptide-2. [27]
An image of multiple chromosomes, taken from many cells. Plant genetics is the study of genes, genetic variation, and heredity specifically in plants. [1] [2] It is generally considered a field of biology and botany, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.
Biochemistry and molecular biology of plants. American Society of Plant Physiologists. ISBN 978-0-943088-37-2. Levert KL, Waldrop GL, Stephens JM (May 2002). "A biotin analog inhibits acetyl-CoA carboxylase activity and adipogenesis". The Journal of Biological Chemistry. 277 (19): 16347– 16350. doi: 10.1074/jbc.C200113200. PMID 11907024