Melanocortin receptor

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Melanocortin receptors are members of the rhodopsin family of 7-transmembrane, G-protein coupled receptors.

There are five members of the melanocortin receptor system[1] each with differing specificities for melanocortins:

These receptors are inhibited by endogenous antagonists agouti signaling protein and agouti-related protein[3] and activated by endogenous agonist melanocyte-stimulating hormone.[4]

References

  1. ^ Melanocortins and the Melanocortin Receptor
  2. ^ Farooqi IS, Keogh JM, Yeo GS, Lank EJ, Cheetham T, O'Rahilly S (2003). "Clinical spectrum of obesity and mutations in the melanocortin 4 receptor gene". N. Engl. J. Med. 348 (12): 1085–95. doi:10.1056/NEJMoa022050. PMID 12646665. 
  3. ^ Chai B, Pogozheva I, Lai Y, Li J, Neubig R, Mosberg H, Gantz I (2005). "Receptor-antagonist interactions in the complexes of agouti and agouti-related protein with human melanocortin 1 and 4 receptors". Biochemistry 44 (9): 3418–31. doi:10.1021/bi0478704. PMID 15736952. 
  4. ^ Pogozheva I, Chai B, Lomize A, Fong T, Weinberg D, Nargund R, Mulholland M, Gantz I, Mosberg H (2005). "Interactions of human melanocortin 4 receptor with nonpeptide and peptide agonists". Biochemistry 44 (34): 11329–41. doi:10.1021/bi0501840. PMID 16114870. 

External links

v • d • e
Transmembrane receptor: G protein-coupled receptors
Class A: Rhodopsin like
α1 (A, B, D) • α2 (A, B, C) • β1 • β2 • β3
CysLT (1, 2) • LTB4 (1, 2) • FPRL1 • OXE • Prostaglandin (DP, EP (1, 2, 3, 4), PGF) • Prostacyclin • Thromboxane
B/W (1, 2) • FF (1, 2) • S • Y (1, 2, 4, 5)
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, 79, 82, 83, 84, 85, 87, 88, 92, 101, 103, 119, 120, 132, 135, 139, 141, 142, 146, 148, 149, 150, 151, 152, 153, 160, 161, 162, 171, 172, 173, 174, 176, 177, 182)
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) • Adrenomedullin • Anaphylatoxin (C3a, C5a) • Angiotensin (1, 2) • Apelin • Bile acid • Bombesin (BRS3, GRPR, NMBR) • Bradykinin (B1, B2) • Cannabinoid (CB1, CB2) • Chemokine • Cholecystokinin (A, B) • Dopamine (D1, D2, D3, D4, D5) • EBI2 • Endothelin (A, B) • Estrogen • Formyl peptide (1, L1, L2) • Free fatty acid (1, 2, 3, 4) • FSH • Galanin (1, 2, 3) • Gonadotropin-releasing hormone (1, 2) • Ghrelin • Histamine (H1, H2, H3, H4) • Kisspeptin • Luteinizing hormone/choriogonadotropin • Lysophospholipid (1, 2, 3, 4, 5, 6, 7, 8) • MAS (1, 1L, D, E, F, G, X1, X2, X3, X4) • Melanocortin (1, 2, 3, 4, 5) • MCHR (1, 2) • Melatonin (1A, 1B) • Motilin • Neuromedin (B, U (1, 2)) • Neurotensin (1, 2) • Opioid (Delta, Kappa, Mu, Nociceptin, but not Sigma) • Olfactory • Opsin (3, 4, 5, 1LW, 1MW, 1SW, RGR, RRH) • Orexin (1, 2) • Oxytocin • Oxoglutarate • PAF • Prokineticin (1, 2) • Prolactin-releasing peptide • Protease-activated (1, 2, 3, 4) • Relaxin (1, 2, 3, 4) • Somatostatin (1, 2, 3, 4, 5) • SREB • Succinate • TAAR (1, 2, 3, 5, 6, 8, 9) • Tachykinin (1, 2, 3) • Thyrotropin • Thyrotropin-releasing hormone • Urotensin-II • Vasopressin (1A, 1B, 2)
Class B: Secretin like
GPR (56, 64, 97, 98, 110, 111, 112, 113, 114, 115, 116, 123, 124, 125, 126, 128, 133, 143, 144, 157)
Other
Class C: Metabotropic
glutamate / pheromone
TAS1R (1, 2, 3) • TAS2R (1, 3, 4, 5, 8, 9, 10, 12, 13, 14, 16, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50)
Other
Calcium-sensing receptor • GABA B (1, 2) • Glutamate receptor (Metabotropic glutamate (1, 2, 3, 4, 5, 6, 7, 8)) • GPRC6A • GPR (156, 158, 179) • RAIG (1, 2, 3, 4)
Frizzled / Smoothened
Frizzled (1, 2, 3, 4, 5, 6, 7, 8, 9, 10) • Smoothened

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  • This page was last modified on 29 May 2008, at 17:55.

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