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Available protein structures:
Pfam	structures / ECOD
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary

Cholecystokinin A receptor, N-terminal domain
Cholecystokinin A receptor, N-terminal domain
	molecular complex of cholecystokinin-8 and n-terminus of the cholecystokinin a receptor by nmr spectroscopy
Identifiers
Symbol	CholecysA-Rec_N
Pfam	PF09193
InterPro	IPR015276
SCOP2	1d6g / SCOPe / SUPFAM
Pfam
Available protein structures:
Pfam	structures / ECOD
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary

CCKAR
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	1D6G, 1HZN
Identifiers
Aliases	CCKAR, CCK-A, CCK1-R, CCK1R, CCKRA, cholecystokinin A receptor
External IDs	OMIM: 118444 MGI: 99478 HomoloGene: 37337 GeneCards: CCKAR
Gene location (Human)
Chr.	Chromosome 4 (human)
End	26,490,484 bp
Gene location (Mouse)
Chr.	Chromosome 5 (mouse)
End	53,865,047 bp
RNA expression pattern
	Top expressed in
	Top expressed in
	More reference expression data
	; ;
	More reference expression data
Gene ontology
Molecular function
Cellular component
Biological process
	Sources:Amigo / QuickGO
Orthologs
	886
	12425
	ENSG00000163394
	ENSMUSG00000029193
	P32238
	O08786
	NM_000730
	NM_009827; NM_001347354
	NP_000721
	NP_001334283; NP_033957
	Wikidata
View/Edit Human	View/Edit Mouse

The Cholecystokinin A receptor is a human protein, also known as CCKAR or CCK₁, with CCK₁ now being the IUPHAR-recommended name.

Function[edit]

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 helical turns and a disulfide-cross linked loop. It is required for interaction of the cholecystokinin A receptor with its corresponding hormonal ligand.^[6]

Selective Ligands[edit]

Agonists[edit]

Cholecystokinin
CCK-4
SR-146,131
A-71623 - modified tetrapeptide, potent and selective CCK_A agonist, IC₅₀ 3.7nM, 1200x selectivity over CCK_B, CAS# 130408-77-4

Antagonists[edit]

Proglumide
Lorglumide
Devazepide
Dexloxiglumide
Asperlicin
SR-27897
IQM-95333
JNJ-17156516

References[edit]

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000163394 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000029193 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Entrez Gene: CCKAR cholecystokinin A receptor".
^ 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. PMID 10555959.

External links[edit]

"Cholecystokinin Receptors: CCK₁". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology. Archived from the original on 2012-10-23. Retrieved 2008-12-04.

Further reading[edit]

Varga G, Bálint A, Burghardt B, D'Amato M (Apr 2004). "Involvement of endogenous CCK and CCK1 receptors in colonic motor function". British Journal of Pharmacology. 141 (8): 1275–84. doi:10.1038/sj.bjp.0705769. PMC 1574909. PMID 15100163.
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. PMID 12777967.
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. PMID 7557108.
Huppi K, Siwarski D, Pisegna JR, Wank S (Feb 1995). "Chromosomal localization of the gastric and brain receptors for cholecystokinin (CCKAR and CCKBR) in human and mouse". Genomics. 25 (3): 727–9. doi:10.1016/0888-7543(95)80018-H. PMC 6736545. PMID 7759110.
de Weerth A, Pisegna JR, Huppi K, Wank SA (Jul 1993). "Molecular cloning, functional expression and chromosomal localization of the human cholecystokinin type A receptor". Biochemical and Biophysical Research Communications. 194 (2): 811–8. doi:10.1006/bbrc.1993.1894. PMID 8343165.
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. PMID 8503909.
Kennedy K, Gigoux V, Escrieut C, Maigret B, Martinez J, Moroder L, Fréhel D, Gully D, Vaysse N, Fourmy D (Jan 1997). "Identification of two amino acids of the human cholecystokinin-A receptor that interact with the N-terminal moiety of cholecystokinin". The Journal of Biological Chemistry. 272 (5): 2920–6. doi:10.1074/jbc.272.5.2920. PMID 9006937.
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. PMID 9192855.
Gigoux V, Escrieut C, Silvente-Poirot S, Maigret B, Gouilleux L, Fehrentz JA, Gully D, Moroder L, Vaysse N, Fourmy D (Jun 1998). "Met-195 of the cholecystokinin-A receptor interacts with the sulfated tyrosine of cholecystokinin and is crucial for receptor transition to high affinity state". The Journal of Biological Chemistry. 273 (23): 14380–6. doi:10.1074/jbc.273.23.14380. PMID 9603948.
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. PMID 10026437. S2CID 41117645.
Gigoux V, Escrieut C, Fehrentz JA, Poirot S, Maigret B, Moroder L, Gully D, Martinez J, Vaysse N, Fourmy D (Jul 1999). "Arginine 336 and asparagine 333 of the human cholecystokinin-A receptor binding site interact with the penultimate aspartic acid and the C-terminal amide of cholecystokinin". The Journal of Biological Chemistry. 274 (29): 20457–64. doi:10.1074/jbc.274.29.20457. PMID 10400673.
Gigoux V, Maigret B, Escrieut C, Silvente-Poirot S, Bouisson M, Fehrentz JA, Moroder L, Gully D, Martinez J, Vaysse N, Fourmy AD (Nov 1999). "Arginine 197 of the cholecystokinin-A receptor binding site interacts with the sulfate of the peptide agonist cholecystokinin". Protein Science. 8 (11): 2347–54. doi:10.1110/ps.8.11.2347. PMC 2144185. PMID 10595537.
Funakoshi A, Miyasaka K, Matsumoto H, Yamamori S, Takiguchi S, Kataoka K, Takata Y, Matsusue K, Kono A, Shimokata H (Jan 2000). "Gene structure of human cholecystokinin (CCK) type-A receptor: body fat content is related to CCK type-A receptor gene promoter polymorphism". FEBS Letters. 466 (2–3): 264–6. doi:10.1016/S0014-5793(00)01080-2. PMID 10682840. S2CID 11683500.
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. PMID 10893485.
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. PMID 11300760.
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. PMID 11495676. S2CID 22693627.
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. PMID 11549403. S2CID 24442175.
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. PMID 11730982. S2CID 42131386.
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. PMID 12198366.
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. PMID 12424565. S2CID 35526543.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

This article incorporates text from the public domain Pfam and InterPro: IPR015276

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000163394 – Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000029193 – Ensembl, May 2017

[3] "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[4] "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[entrez-5] "Entrez Gene: CCKAR cholecystokinin A receptor".

[pmid10555959-6] 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. PMID 10555959.

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