5-HT1B receptor

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5-hydroxytryptamine (serotonin) receptor 1B, G protein-coupled
Available structures
PDB Ortholog search: PDBe, RCSB
Symbols HTR1B ; 5-HT1B; 5-HT1DB; HTR1D2; HTR1DB; S12
External IDs OMIM182131 MGI96274 HomoloGene669 IUPHAR: 2 ChEMBL: 1898 GeneCards: HTR1B Gene
RNA expression pattern
PBB GE HTR1B 210799 at tn.png
More reference expression data
Species Human Mouse
Entrez 3351 15551
Ensembl ENSG00000135312 ENSMUSG00000049511
UniProt P28222 P28334
RefSeq (mRNA) NM_000863 NM_010482
RefSeq (protein) NP_000854 NP_034612
Location (UCSC) Chr 6:
77.46 – 77.46 Mb
Chr 9:
81.63 – 81.63 Mb
PubMed search [1] [2]

5-hydroxytryptamine receptor 1B also known as the 5-HT1B receptor is a protein that in humans is encoded by the HTR1B gene.[1][2] The 5-HT1B receptor is a 5-HT receptor subtype.[3]

Tissue distribution and function[edit]

5-HT1B receptors are widely distributed throughout the CNS with the highest concentrations found in the frontal cortex, basal ganglia, striatum, and the hippocampus.[4] The function of the 5-HT1B receptor differs depending upon its location. In the frontal cortex, it is believed to act as a postsynaptic receptor inhibiting the release of dopamine. In the basal ganglia and the striatum, evidence suggests 5-HT signaling acts on an autoreceptor, inhibiting the release of serotonin[5] and decreasing glutamatergic transmission by reducing miniature excitatory postsynaptic potential (mEPSP) frequency,[6] respectively. In the hippocampus, a recent study has demonstrated that activation of postsynaptic 5-HT1B heteroreceptors produces a facilitation in excitatory synaptic transmission which is altered in depression.[7] When the expression of 5-HT1B in human cortex was traced throughout life, significant changes during adolescence were observed, in a way that is strongly correlated with the expression of 5-HT1E.[8]

Outside the brain, 5-HT1B receptor activation also has vascular effects, such as pulmonary vasoconstriction. Furthermore, blocking 5-HT1B receptor signaling decreases the number of osteoblasts, bone mass, and the bone formation rate.[9]

Knockout mice lacking the 5-HT1B gene have shown an increase in aggression and a higher preference for alcohol.[10] Under basal conditions, knockout mice present with a "normal" phenotype and exhibit a sucrose preference (lack of sucrose preference is considered a measure of anhedonia). However, after undergoing chronic unpredictable stress treatment to induce a "depression-like" phenotype these animals do not benefit from administration of selective serotonin reuptake inhibitor (SSRIs).[7]



Partial agonists[edit]

Antagonists and inverse agonists[edit]


In humans the protein is coded by the gene HTR1B.

A genetic variant in the promotor region, A-161T, has been examined with respect to personality traits and showed no major effect.[14]

See also[edit]


  1. ^ Jin H, Oksenberg D, Ashkenazi A, Peroutka SJ, Duncan AM, Rozmahel R, Yang Y, Mengod G, Palacios JM, O'Dowd BF (Mar 1992). "Characterization of the human 5-hydroxytryptamine1B receptor". The Journal of Biological Chemistry 267 (9): 5735–8. PMID 1348246. 
  2. ^ Sanders AR, Cao Q, Taylor J, Levin TE, Badner JA, Cravchik A, Comeron JM, Naruya S, Del Rosario A, Salvi DA, Walczyk KA, Mowry BJ, Levinson DF, Crowe RR, Silverman JM, Gejman PV (Feb 2001). "Genetic diversity of the human serotonin receptor 1B (HTR1B) gene". Genomics 72 (1): 1–14. doi:10.1006/geno.2000.6411. PMID 11247661. 
  3. ^ "Entrez Gene: HTR1B 5-hydroxytryptamine (serotonin) receptor 1B". 
  4. ^ "5-hydroxytryptamine (serotonin) receptor 1B, G protein-coupled". Retrieved 23 Feb 2013. 
  5. ^ Pytliak M, Vargová V, Mechírová V, Felšöci M (2011). "Serotonin receptors - from molecular biology to clinical applications". Physiological Research / Academia Scientiarum Bohemoslovaca 60 (1): 15–25. PMID 20945968. 
  6. ^ Huang CC, Yeh CM, Wu MY, Hsu KS (Jun 2013). "A single in vivo cocaine administration impairs 5-HT(1B) receptor-induced long-term depression in the nucleus accumbens". Journal of Neurochemistry 125 (6): 809–21. doi:10.1111/jnc.12227. PMID 23452061. 
  7. ^ a b Cai X, Kallarackal AJ, Kvarta MD, Goluskin S, Gaylor K, Bailey AM, Lee HK, Huganir RL, Thompson SM (Apr 2013). "Local potentiation of excitatory synapses by serotonin and its alteration in rodent models of depression". Nature Neuroscience 16 (4): 464–72. doi:10.1038/nn.3355. PMID 23502536. 
  8. ^ Shoval G, Bar-Shira O, Zalsman G, John Mann J, Chechik G (Jul 2014). "Transitions in the transcriptome of the serotonergic and dopaminergic systems in the human brain during adolescence". European Neuropsychopharmacology 24 (7): 1123–32. doi:10.1016/j.euroneuro.2014.02.009. PMID 24721318. 
  9. ^ Yadav VK, Ryu JH, Suda N, Tanaka KF, Gingrich JA, Schütz G, Glorieux FH, Chiang CY, Zajac JD, Insogna KL, Mann JJ, Hen R, Ducy P, Karsenty G (Nov 2008). "Lrp5 controls bone formation by inhibiting serotonin synthesis in the duodenum". Cell 135 (5): 825–37. doi:10.1016/j.cell.2008.09.059. PMC 2614332. PMID 19041748. 
  10. ^ Hoyer D, Hannon JP, Martin GR (Apr 2002). "Molecular, pharmacological and functional diversity of 5-HT receptors". Pharmacology, Biochemistry, and Behavior 71 (4): 533–54. doi:10.1016/S0091-3057(01)00746-8. PMID 11888546. 
  11. ^ Hudzik TJ, Yanek M, Porrey T, Evenden J, Paronis C, Mastrangelo M, Ryan C, Ross S, Stenfors C (Mar 2003). "Behavioral pharmacology of AR-A000002, a novel, selective 5-hydroxytryptamine(1B) antagonist". The Journal of Pharmacology and Experimental Therapeutics 304 (3): 1072–84. doi:10.1124/jpet.102.045468. PMID 12604684. 
  12. ^ Selkirk JV, Scott C, Ho M, Burton MJ, Watson J, Gaster LM, Collin L, Jones BJ, Middlemiss DN, Price GW (Sep 1998). "SB-224289--a novel selective (human) 5-HT1B receptor antagonist with negative intrinsic activity". British Journal of Pharmacology 125 (1): 202–8. doi:10.1038/sj.bjp.0702059. PMC 1565605. PMID 9776361. 
  13. ^ Roberts C, Watson J, Price GW, Middlemiss DN (2001). "SB-236057-A: a selective 5-HT1B receptor inverse agonist". CNS Drug Reviews 7 (4): 433–44. doi:10.1111/j.1527-3458.2001.tb00209.x. PMID 11830759. 
  14. ^ Tsai SJ, Wang YC, Chen JY, Hong CJ (2003). "Allelic variants of the tryptophan hydroxylase (A218C) and serotonin 1B receptor (A-161T) and personality traits". Neuropsychobiology 48 (2): 68–71. doi:10.1159/000072879. PMID 14504413. 

Further reading[edit]

  • Olivier B, van Oorschot R (Dec 2005). "5-HT1B receptors and aggression: a review". European Journal of Pharmacology 526 (1-3): 207–17. doi:10.1016/j.ejphar.2005.09.066. PMID 16310769. 
  • Hamblin MW, Metcalf MA, McGuffin RW, Karpells S (Apr 1992). "Molecular cloning and functional characterization of a human 5-HT1B serotonin receptor: a homologue of the rat 5-HT1B receptor with 5-HT1D-like pharmacological specificity". Biochemical and Biophysical Research Communications 184 (2): 752–9. doi:10.1016/0006-291X(92)90654-4. PMID 1315531. 
  • Veldman SA, Bienkowski MJ (Sep 1992). "Cloning and pharmacological characterization of a novel human 5-hydroxytryptamine1D receptor subtype". Molecular Pharmacology 42 (3): 439–44. PMID 1328844. 
  • Demchyshyn L, Sunahara RK, Miller K, Teitler M, Hoffman BJ, Kennedy JL, Seeman P, Van Tol HH, Niznik HB (Jun 1992). "A human serotonin 1D receptor variant (5HT1D beta) encoded by an intronless gene on chromosome 6". Proceedings of the National Academy of Sciences of the United States of America 89 (12): 5522–6. doi:10.1073/pnas.89.12.5522. PMC 49324. PMID 1351684. 
  • Levy FO, Gudermann T, Perez-Reyes E, Birnbaumer M, Kaumann AJ, Birnbaumer L (Apr 1992). "Molecular cloning of a human serotonin receptor (S12) with a pharmacological profile resembling that of the 5-HT1D subtype". The Journal of Biological Chemistry 267 (11): 7553–62. PMID 1559993. 
  • Weinshank RL, Zgombick JM, Macchi MJ, Branchek TA, Hartig PR (Apr 1992). "Human serotonin 1D receptor is encoded by a subfamily of two distinct genes: 5-HT1D alpha and 5-HT1D beta". Proceedings of the National Academy of Sciences of the United States of America 89 (8): 3630–4. doi:10.1073/pnas.89.8.3630. PMC 48922. PMID 1565658. 
  • Mochizuki D, Yuyama Y, Tsujita R, Komaki H, Sagai H (Jun 1992). "Cloning and expression of the human 5-HT1B-type receptor gene". Biochemical and Biophysical Research Communications 185 (2): 517–23. doi:10.1016/0006-291X(92)91655-A. PMID 1610347. 
  • Nöthen MM, Erdmann J, Shimron-Abarbanell D, Propping P (Dec 1994). "Identification of genetic variation in the human serotonin 1D beta receptor gene". Biochemical and Biophysical Research Communications 205 (2): 1194–200. doi:10.1006/bbrc.1994.2792. PMID 7802650. 
  • Ng GY, George SR, Zastawny RL, Caron M, Bouvier M, Dennis M, O'Dowd BF (Nov 1993). "Human serotonin1B receptor expression in Sf9 cells: phosphorylation, palmitoylation, and adenylyl cyclase inhibition". Biochemistry 32 (43): 11727–33. doi:10.1021/bi00094a032. PMID 8218242. 
  • Bouchelet I, Cohen Z, Case B, Séguéla P, Hamel E (Aug 1996). "Differential expression of sumatriptan-sensitive 5-hydroxytryptamine receptors in human trigeminal ganglia and cerebral blood vessels". Molecular Pharmacology 50 (2): 219–23. PMID 8700126. 
  • Varnäs K, Hall H, Bonaventure P, Sedvall G (Oct 2001). "Autoradiographic mapping of 5-HT(1B) and 5-HT(1D) receptors in the post mortem human brain using [(3)H]GR 125743". Brain Research 915 (1): 47–57. doi:10.1016/S0006-8993(01)02823-2. PMID 11578619. 
  • Salim K, Fenton T, Bacha J, Urien-Rodriguez H, Bonnert T, Skynner HA, Watts E, Kerby J, Heald A, Beer M, McAllister G, Guest PC (May 2002). "Oligomerization of G-protein-coupled receptors shown by selective co-immunoprecipitation". The Journal of Biological Chemistry 277 (18): 15482–5. doi:10.1074/jbc.M201539200. PMID 11854302. 
  • Hasegawa Y, Higuchi S, Matsushita S, Miyaoka H (Apr 2002). "Association of a polymorphism of the serotonin 1B receptor gene and alcohol dependence with inactive aldehyde dehydrogenase-2". Journal of Neural Transmission 109 (4): 513–21. doi:10.1007/s007020200042. PMID 11956970. 
  • Hawi Z, Dring M, Kirley A, Foley D, Kent L, Craddock N, Asherson P, Curran S, Gould A, Richards S, Lawson D, Pay H, Turic D, Langley K, Owen M, O'Donovan M, Thapar A, Fitzgerald M, Gill M (2003). "Serotonergic system and attention deficit hyperactivity disorder (ADHD): a potential susceptibility locus at the 5-HT(1B) receptor gene in 273 nuclear families from a multi-centre sample". Molecular Psychiatry 7 (7): 718–25. doi:10.1038/sj.mp.4001048. PMID 12192616. 
  • Huang YY, Oquendo MA, Friedman JM, Greenhill LL, Brodsky B, Malone KM, Khait V, Mann JJ (Jan 2003). "Substance abuse disorder and major depression are associated with the human 5-HT1B receptor gene (HTR1B) G861C polymorphism". Neuropsychopharmacology 28 (1): 163–9. doi:10.1038/sj.npp.1300000. PMID 12496953. 
  • Quist JF, Barr CL, Schachar R, Roberts W, Malone M, Tannock R, Basile VS, Beitchman J, Kennedy JL (Jan 2003). "The serotonin 5-HT1B receptor gene and attention deficit hyperactivity disorder". Molecular Psychiatry 8 (1): 98–102. doi:10.1038/sj.mp.4001244. PMID 12556913. 
  • Sinha R, Cloninger CR, Parsian A (Aug 2003). "Linkage disequilibrium and haplotype analysis between serotonin receptor 1B gene variations and subtypes of alcoholism". American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics 121B (1): 83–8. doi:10.1002/ajmg.b.20064. PMID 12898580. 

External links[edit]

  • "5-HT1B". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology. 

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