Cholecystokinin receptor

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cholecystokinin A receptor
Identifiers
Symbol CCKAR
Entrez 886
HUGO 1570
OMIM 118444
RefSeq NM_000730
UniProt P32238
Other data
Locus Chr. 4 p15.2-p15.1
cholecystokinin B receptor
Identifiers
Symbol CCKBR
Entrez 887
HUGO 1571
OMIM 118445
RefSeq NM_176875
UniProt P32239
Other data
Locus Chr. 11 p15.4

Cholecystokinin receptors or CCK receptors are a group of G-protein coupled receptors which bind the peptide hormones cholecystokinin (CCK) or gastrin.[1] There are two different subtypes CCKA and CCKB which are ~50% homologous:[2] Various cholecystokinin antagonists have been developed and are used in research, although the only drug of this class that has been widely marketed to date is the anti-ulcer drug proglumide.

protein gene tissue distribution preferred ligand function
CCKA (CCK1) CCKAR primarily gastrointestinal tract, lesser amounts in the CNS sulfated CCK >> nonsulfated CCK ≈ nonsulfated CCK stimulation of bicarb secretion, gall bladder emptying and inhibiting gut motility
CCKB (CCK2) CCKBR primarily CNS, lesser amounts in the gastrointestinal tract gastrin ≈ CCK (receptor does not descriminate between sulfated and nonsulfated peptides) regulation of nociception, anxiety, memory and hunger

References

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External links

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Class A: Rhodopsin like
α1 (A, B, D) · α2 (A, B, C) · β1 · β2 · β3
Adenosine (A1, A2A, A2B, A3) · P2Y (1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14)
(all but 5-HT3) 5-HT1 (A, B, D, E, F) · 5-HT2 (A, B, C) · 5-HT (4, 5A, 6, 7)
Other
Acetylcholine (M1, M2, M3, M4, M5) · Dopamine (D1, D2, D3, D4, D5) · Histamine (H1, H2, H3, H4) · Melatonin (1A, 1B, 1C) · TAAR (1, 2, 3, 5, 6, 8, 9)
Metabolites and
signaling molecules
CysLT (1, 2) · LTB4 (1, 2) · FPRL1 · OXE · Prostaglandin (DP (1, 2), EP (1, 2, 3, 4), FP) · Prostacyclin · Thromboxane
Other
Bile acid · Cannabinoid (CB1, CB2, GPR (18, 55, 119)) · EBI2 · Estrogen · Free fatty acid (1, 2, 3, 4) · Lactate  · Lysophosphatidic acid (1, 2, 3, 4, 5, 6)  · Lysophospholipid (1, 2, 3, 4, 5, 6, 7, 8) · Niacin (1, 2) · Oxoglutarate · PAF · Sphingosine-1-phosphate (1, 2, 3, 4, 5) · Succinate
Peptide
B/W (1, 2) · FF (1, 2) · S · Y (1, 2, 4, 5) · Neuromedin (B, U (1, 2)) · Neurotensin (1, 2)
Other
Anaphylatoxin (C3a, C5a) · Angiotensin (1, 2) · Apelin · Bombesin (BRS3, GRPR, NMBR) · Bradykinin (B1, B2) · Chemokine · Cholecystokinin (A, B) · Endothelin (A, B) · Formyl peptide (1, 2, 3) · FSH · Galanin (1, 2, 3) · GHB receptor · Gonadotropin-releasing hormone (1, 2) · Ghrelin · Kisspeptin · Luteinizing hormone/choriogonadotropin · MAS (1, 1L, D, E, F, G, X1, X2, X3, X4) · Melanocortin (1, 2, 3, 4, 5) · MCHR (1, 2) · Motilin · Opioid (Delta, Kappa, Mu, Nociceptin & Zeta, but not Sigma) · Orexin (1, 2) · Oxytocin · Prokineticin (1, 2) · Prolactin-releasing peptide · Relaxin (1, 2, 3, 4) · Somatostatin (1, 2, 3, 4, 5) · Tachykinin (1, 2, 3) · Thyrotropin · Thyrotropin-releasing hormone · Urotensin-II · Vasopressin (1A, 1B, 2)
Miscellaneous
GPR (1, 3, 4, 6, 12, 15, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 31, 32, 33, 34, 35, 37, 39, 42, 44, 45, 50, 52, 55, 61, 62, 63, 65, 68, 75, 77, 78, 81, 82, 83, 84, 85, 87, 88, 92, 101, 103, 109A, 109B, 119, 120, 132, 135, 137B, 139, 141, 142, 146, 148, 149, 150, 151, 152, 153, 160, 161, 162, 171, 173, 174, 176, 177, 182, 183)
Other
Class B: Secretin like
GPR (56, 64, 97, 98, 110, 111, 112, 113, 114, 115, 116, 123, 124, 125, 126, 128, 133, 143, 144, 155, 157)
Other
Class C: Metabotropic
glutamate / pheromone
TAS1R (1, 2, 3) · TAS2R (1, 3, 4, 5, 8, 9, 10, 12, 13, 14, 16, 19, 20, 30, 31, 38, 39, 40, 41, 42, 43, 45, 46, 50)
Other
Class F:
Frizzled / Smoothened
Frizzled
Frizzled (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
Smoothened
Hormone receptors
Other
Atrial natriuretic factor (NPR1, NPR2, NPR3) - Calcitonin - Cholecystokinin (A, B) - VIP
Opioid receptors
Other neuropeptide receptors
  1. ↑ Noble F, Wank SA, Crawley JN, Bradwejn J, Seroogy KB, Hamon M, Roques BP (1999). "International Union of Pharmacology. XXI. Structure, distribution, and functions of cholecystokinin receptors" ([dead link]). Pharmacol. Rev. 51 (4): 745–81. PMID 10581329. 
  2. ↑ Dufresne M, Seva C, Fourmy D (2006). "Cholecystokinin and gastrin receptors". Physiol. Rev. 86 (3): 805–47. doi:10.1152/physrev.00014.2005. PMID 16816139. 
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