CHRNB2

Template:Cs1 config Template:Short description An Error has occurred retrieving Wikidata item for infobox Neuronal acetylcholine receptor subunit beta-2 is a protein that in humans is encoded by the CHRNB2 gene.

Neuronal acetylcholine receptors are homo- or heteropentameric complexes composed of homologous alpha and beta subunits. They belong to a superfamily of ligand-gated ion channels which allow the flow of sodium and potassium across the plasma membrane in response to ligands such as acetylcholine and nicotine. This gene encodes one of several beta subunits. Mutations in this gene are associated with autosomal dominant nocturnal frontal lobe epilepsy.

It has been discovered that suppression, rather than stimulation, of B2-containing nAChR currents yields an antidepressant effect. This is believed to explain the significantly increased prevalence of cigarette smoking in depressed individuals and the profound rise in depressive symptoms during abstinence.

Interactive pathway map

Click on genes, proteins and metabolites below to link to respective articles.

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Nicotine Activity on Dopaminergic Neurons edit

See also

• Nicotinic acetylcholine receptor

Further reading

• Skorupska E, Rózycka A, Trzeciak WH (2002). "[Molecular and genetic basis of idiopathic nocturnal frontal lobe epilepsy]". Neurol. Neurochir. Pol. 36 (3): 513–25. PMID 12185808.
• Bracci L, Lozzi L, Rustici M, Neri P (1992). "Binding of HIV-1 gp120 to the nicotinic receptor". FEBS Lett. 311 (2): 115–8. Bibcode:1992FEBSL.311..115B. doi:10.1016/0014-5793(92)81380-5. PMID 1397297.
• Anand R, Lindstrom J (1990). "Nucleotide sequence of the human nicotinic acetylcholine receptor beta 2 subunit gene". Nucleic Acids Res. 18 (14): 4272. doi:10.1093/nar/18.14.4272. PMC 331211. PMID 2377478.
• Elliott KJ, Ellis SB, Berckhan KJ, et al. (1997). "Comparative structure of human neuronal alpha 2-alpha 7 and beta 2-beta 4 nicotinic acetylcholine receptor subunits and functional expression of the alpha 2, alpha 3, alpha 4, alpha 7, beta 2, and beta 4 subunits". J. Mol. Neurosci. 7 (3): 217–28. doi:10.1007/BF02736842. PMID 8906617. S2CID 45737923.
• Groot Kormelink PJ, Luyten WH (1997). "Cloning and sequence of full-length cDNAs encoding the human neuronal nicotinic acetylcholine receptor (nAChR) subunits beta3 and beta4 and expression of seven nAChR subunits in the human neuroblastoma cell line SH-SY5Y and/or IMR-32". FEBS Lett. 400 (3): 309–14. doi:10.1016/S0014-5793(96)01383-X. PMID 9009220. S2CID 82364119.
• Rempel N, Heyers S, Engels H, et al. (1999). "The structures of the human neuronal nicotinic acetylcholine receptor beta2- and alpha3-subunit genes (CHRNB2 and CHRNA3)". Hum. Genet. 103 (6): 645–53. doi:10.1007/s004390050885. PMID 9921897. S2CID 23791981.
• Lueders KK, Elliott RW, Marenholz I, et al. (1999). "Genomic organization and mapping of the human and mouse neuronal beta2-nicotinic acetylcholine receptor genes". Mamm. Genome. 10 (9): 900–5. doi:10.1007/s003359901111. PMID 10441742. S2CID 13160005.
• Steinlein OK (2000). "Neuronal nicotinic receptors in human epilepsy". Eur. J. Pharmacol. 393 (1–3): 243–7. doi:10.1016/S0014-2999(00)00065-0. PMID 10771020.
• De Fusco M, Becchetti A, Patrignani A, et al. (2000). "The nicotinic receptor beta 2 subunit is mutant in nocturnal frontal lobe epilepsy". Nat. Genet. 26 (3): 275–6. doi:10.1038/81566. PMID 11062464. S2CID 21818633.
• Phillips HA, Favre I, Kirkpatrick M, et al. (2001). "CHRNB2 is the second acetylcholine receptor subunit associated with autosomal dominant nocturnal frontal lobe epilepsy". Am. J. Hum. Genet. 68 (1): 225–31. doi:10.1086/316946. PMC 1234917. PMID 11104662.
• Samochocki M, Zerlin M, Jostock R, et al. (2001). "Galantamine is an allosterically potentiating ligand of the human alpha4/beta2 nAChR". Acta Neurol. Scand. Suppl. 176: 68–73. doi:10.1034/j.1600-0404.2000.00310.x. PMID 11261808. S2CID 39916984.
• Engidawork E, Gulesserian T, Balic N, Cairns N, Lubec G (2002). "Changes in nicotinic acetylcholine receptor subunits expression in brain of patients with Down syndrome and Alzheimer's disease". In Lubec G (ed.). Protein Expression in Down Syndrome Brain. Journal of Neural Transmission. Supplementum. No. 61. Springer. pp. 211–22. doi:10.1007/978-3-7091-6262-0_17. ISBN 978-3-211-83704-7. PMID 11771745.
• Lueders KK, Hu S, McHugh L, et al. (2002). "Genetic and functional analysis of single nucleotide polymorphisms in the beta2-neuronal nicotinic acetylcholine receptor gene (CHRNB2)". Nicotine Tob. Res. 4 (1): 115–25. doi:10.1080/14622200110098419. PMID 11906688.
• Duga S, Asselta R, Bonati MT, et al. (2002). "Mutational analysis of nicotinic acetylcholine receptor beta2 subunit gene (CHRNB2) in a representative cohort of Italian probands affected by autosomal dominant nocturnal frontal lobe epilepsy". Epilepsia. 43 (4): 362–4. doi:10.1046/j.1528-1157.2002.39001.x. PMID 11952766. S2CID 34970690.
• Heeschen C, Weis M, Aicher A, et al. (2002). "A novel angiogenic pathway mediated by non-neuronal nicotinic acetylcholine receptors". J. Clin. Invest. 110 (4): 527–36. doi:10.1172/JCI14676. PMC 150415. PMID 12189247.
• Lin L, Jeanclos EM, Treuil M, et al. (2003). "The calcium sensor protein visinin-like protein-1 modulates the surface expression and agonist sensitivity of the alpha 4beta 2 nicotinic acetylcholine receptor". J. Biol. Chem. 277 (44): 41872–8. doi:10.1074/jbc.M206857200. PMID 12202488.
• Kawamata J, Shimohama S (2002). "Association of novel and established polymorphisms in neuronal nicotinic acetylcholine receptors with sporadic Alzheimer's disease". J. Alzheimers Dis. 4 (2): 71–6. doi:10.3233/JAD-2002-4201. hdl:2433/149693. PMID 12214130.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.

External links

• CHRNB2+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
• Template:UCSC gene info
• Template:PDBe-KB2

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