This gene encodes a G-protein coupled receptor that binds sulfated members of the cholecystokinin (CCK) family of peptide hormones. This receptor is a major physiologic mediator of pancreatic enzyme secretion and smooth muscle contraction of the gallbladder and stomach. In the central and peripheral nervous system this receptor regulates satiety and the release of beta-endorphin and dopamine.[5]
The extracellular, N-terminal, domain of this protein adopts a tertiary structure consisting of a few helicalturns and a disulfide-cross linked loop. It is required for interaction of the cholecystokinin A receptor with its corresponding hormonalligand.[6]
^Pellegrini M, Mierke DF (Nov 1999). "Molecular complex of cholecystokinin-8 and N-terminus of the cholecystokinin A receptor by NMR spectroscopy". Biochemistry. 38 (45): 14775–83. doi:10.1021/bi991272l. PMID10555959.
External links[]
"Cholecystokinin Receptors: CCK1". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.
Wang J, Si YM, Liu ZL, Yu L (Jun 2003). "Cholecystokinin, cholecystokinin-A receptor and cholecystokinin-B receptor gene polymorphisms in Parkinson's disease". Pharmacogenetics. 13 (6): 365–9. doi:10.1097/00008571-200306000-00008. PMID12777967.
Miller LJ, Holicky EL, Ulrich CD, Wieben ED (Oct 1995). "Abnormal processing of the human cholecystokinin receptor gene in association with gallstones and obesity". Gastroenterology. 109 (4): 1375–80. doi:10.1016/0016-5085(95)90601-0. PMID7557108.
Ulrich CD, Ferber I, Holicky E, Hadac E, Buell G, Miller LJ (May 1993). "Molecular cloning and functional expression of the human gallbladder cholecystokinin A receptor". Biochemical and Biophysical Research Communications. 193 (1): 204–11. doi:10.1006/bbrc.1993.1610. PMID8503909.
Inoue H, Iannotti CA, Welling CM, Veile R, Donis-Keller H, Permutt MA (Jun 1997). "Human cholecystokinin type A receptor gene: cytogenetic localization, physical mapping, and identification of two missense variants in patients with obesity and non-insulin-dependent diabetes mellitus (NIDDM)". Genomics. 42 (2): 331–5. doi:10.1006/geno.1997.4749. PMID9192855.
Funakoshi A, Fukamizu Y, Miyasaka K (2000). "Mechanism of cholecystokinin-A- receptor antagonist on human pancreatic exocrine secretion. Localization of CCK-A receptor in the human duodenum". Digestion. 60 Suppl 1: 75–80. doi:10.1159/000051459. PMID10026437. S2CID41117645.
Tachikawa H, Harada S, Kawanishi Y, Okubo T, Shiraishi H (Apr 2000). "Novel polymorphisms of the human cholecystokinin A receptor gene: an association analysis with schizophrenia". American Journal of Medical Genetics. 96 (2): 141–5. doi:10.1002/(SICI)1096-8628(20000403)96:2<141::AID-AJMG3>3.0.CO;2-R. PMID10893485.
Giragossian C, Mierke DF (Apr 2001). "Intermolecular interactions between cholecystokinin-8 and the third extracellular loop of the cholecystokinin A receptor". Biochemistry. 40 (13): 3804–9. doi:10.1021/bi002659n. PMID11300760.
Schmitz F, Schrader H, Otte J, Schmitz H, Stüber E, Herzig K, Schmidt WE (Sep 2001). "Identification of CCK-B/gastrin receptor splice variants in human peripheral blood mononuclear cells". Regulatory Peptides. 101 (1–3): 25–33. doi:10.1016/S0167-0115(01)00281-6. PMID11495676. S2CID22693627.
Tachikawa H, Harada S, Kawanishi Y, Okubo T, Suzuki T (Sep 2001). "Linked polymorphisms (-333G>T and -286A>G) in the promoter region of the CCK-A receptor gene may be associated with schizophrenia". Psychiatry Research. 103 (2–3): 147–55. doi:10.1016/S0165-1781(01)00276-1. PMID11549403. S2CID24442175.
Schmitz F, Göke MN, Otte JM, Schrader H, Reimann B, Kruse ML, Siegel EG, Peters J, Herzig KH, Fölsch UR, Schmidt WE (Dec 2001). "Cellular expression of CCK-A and CCK-B/gastrin receptors in human gastric mucosa". Regulatory Peptides. 102 (2–3): 101–10. doi:10.1016/S0167-0115(01)00307-X. PMID11730982. S2CID42131386.
Okubo T, Harada S, Higuchi S, Matsushita S (Aug 2002). "Investigation of quantitative trait loci in the CCKAR gene with susceptibility to alcoholism". Alcoholism: Clinical and Experimental Research. 26 (8 Suppl): 2S–5S. doi:10.1111/j.1530-0277.2002.tb02693.x. PMID12198366.
Takata Y, Takeda S, Kawanami T, Takiguchi S, Yoshida Y, Miyasaka K, Funakoshi A (2003). "Promoter analysis of human cholecystokinin type-A receptor gene". Journal of Gastroenterology. 37 (10): 815–20. doi:10.1007/s005350200135. PMID12424565. S2CID35526543.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.
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PDB gallery
1d6g: MOLECULAR COMPLEX OF CHOLECYSTOKININ-8 AND N-TERMINUS OF THE CHOLECYSTOKININ A RECEPTOR BY NMR SPECTROSCOPY
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Cell surface receptor: G protein-coupled receptors