Phosphoenolpyruvate carboxykinase 1 (soluble), also known as PCK1, is an enzyme which in humans is encoded by the PCK1gene.[5][6]
Function
This enzyme is a main control point for the regulation of gluconeogenesis. The cytosolic enzyme encoded by this gene, along with GTP, catalyzes the formation of phosphoenolpyruvate from oxaloacetate, with the release of carbon dioxide and GDP. The expression of this gene can be regulated by insulin, glucocorticoids, glucagon, cAMP, and diet. A mitochondrial isozyme of the encoded protein also has been characterized.[5]
Interactive pathway map
Click on genes, proteins and metabolites below to link to respective articles.[§ 1]
^Pilz AJ, Willer E, Povey S, Abbott CM (October 1992). "The genes coding for phosphoenolpyruvate carboxykinase-1 (PCK1) and neuronal nicotinic acetylcholine receptor alpha 4 subunit (CHRNA4) map to human chromosome 20, extending the known region of homology with mouse chromosome 2". Ann. Hum. Genet. 56 (Pt 4): 289–93. doi:10.1111/j.1469-1809.1992.tb01155.x. PMID1492743. S2CID23586336.
Pilz AJ, Willer E, Povey S, Abbott CM (1993). "The genes coding for phosphoenolpyruvate carboxykinase-1 (PCK1) and neuronal nicotinic acetylcholine receptor alpha 4 subunit (CHRNA4) map to human chromosome 20, extending the known region of homology with mouse chromosome 2". Ann. Hum. Genet. 56 (Pt 4): 289–93. doi:10.1111/j.1469-1809.1992.tb01155.x. PMID1492743. S2CID23586336.
Stoffel M, Xiang KS, Espinosa R, et al. (1993). "cDNA sequence and localization of polymorphic human cytosolic phosphoenolpyruvate carboxykinase gene (PCK1) to chromosome 20, band q13.31: PCK1 is not tightly linked to maturity-onset diabetes of the young". Hum. Mol. Genet. 2 (1): 1–4. doi:10.1093/hmg/2.1.1. PMID8490617.
O'Brien RM, Printz RL, Halmi N, et al. (1996). "Structural and functional analysis of the human phosphoenolpyruvate carboxykinase gene promoter". Biochim. Biophys. Acta. 1264 (3): 284–8. doi:10.1016/0167-4781(95)00194-8. PMID8547315.
Dunten P, Belunis C, Crowther R, et al. (2002). "Crystal structure of human cytosolic phosphoenolpyruvate carboxykinase reveals a new GTP-binding site". J. Mol. Biol. 316 (2): 257–64. doi:10.1006/jmbi.2001.5364. PMID11851336.