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CHRNA5 - cholinergic receptor, nicotinic, alpha 5
Entrez Gene Name: cholinergic receptor, nicotinic, alpha 5
Synonyms: AChR alpha5, Acra-5, ALPHA5 NACHR, ALPHA5 NICOTINIC RECEPTOR, CHRNA5, LNCR2, MGC124059, MGC124168, nAChR alpha5, sialoprotein

Gene Summary

  • Human (1138): Nicotinic acetylcholine receptors (nAChRs), such as CHRNA5, are members of a superfamily of ligand-gated ion channels that mediate fast signal transmission at synapses. The nAChRs are thought to be (hetero)pentamers composed of homologous subunits. See MIM 118508 for additional background information on AChRs.[supplied by OMIM]
  • Rat (25102): neuronal receptor and ion channel activated by acetylcholine; mediates release of catecholamines into bloodstream [RGD]

Cell Regulation

Regulates:
  • AchR
  • CHRNE
  • Tgf beta
View all 11 in IPA
Regulated by:
  • AGRN
  • nicotine
  • Agrin
View all 43 in IPA
Binds:
  • epibatidine
  • pipecuronium
  • nicotine
View all 35 in IPA
Role in cell:
  • depolarization
View all 1 in IPA
Disease:
  • Alzheimer's disease
  • lung cancer
  • seizures
View all 33 in IPA

Biological Process

behavioral response to nicotine, ion transport, response to nicotine, signal transduction, synaptic transmission, transport

Cellular Components

cell junction, cell soma, dendrite, integral to membrane, membrane, nicotinic acetylcholine-gated receptor-channel complex, plasma membrane, postsynaptic membrane, synapse

Literature References

  • 15681842Arredondo J, Chernyavsky AI, Marubio LM, Beaudet AL, Jolkovsky DL, Pinkerton KE, Grando SA. Receptor-Mediated Tobacco Toxicity: Regulation of Gene Expression through {alpha}3{beta}2 Nicotinic Receptor in Oral Epithelial Cells.Am J Pathol 2005 Feb 01;166(2):597-613
  • 15155845Salminen O, Murphy KL, McIntosh JM, Drago J, Marks MJ, Collins AC, Grady SR. Subunit composition and pharmacology of two classes of striatal presynaptic nicotinic acetylcholine receptors mediating dopamine release in mice.Mol Pharmacol 2004 Jun 01;65(6):1526-35
  • 12695534Salas R, Orr-Urtreger A, Broide RS, Beaudet A, Paylor R, De Biasi M. The Nicotinic Acetylcholine Receptor Subunit alpha5 Mediates Short-Term Effects of Nicotine in Vivo.Mol Pharmacol 2003 May;63(5):1059-66
  • View 459 categorized literature findings and their references in IPA

Molecular Functions

acetylcholine binding, acetylcholine receptor activity, extracellular ligand-gated ion channel activity, ion channel activity, neurotransmitter receptor activity, nicotinic acetylcholine-activated cation-selective channel activity, receptor activity

Protein Domains

acetylcholine binding, acetylcholine receptor, extracellular ligand binding domain, extracellular ligand-gated ion channel, GABA-A receptor, neurotransmitter-gated ion channel ligand binding domain, nicotinic acetylcholine-activated cation-selective channel, transmembrane receptor

Subcellular Locations

cellular membrane, plasma membrane