Neuronal acetylcholine receptor subunit alpha-3

Details

Name
Neuronal acetylcholine receptor subunit alpha-3
Synonyms
  • NACHRA3
Gene Name
CHRNA3
Organism
Humans
Amino acid sequence
>lcl|BSEQ0006903|Neuronal acetylcholine receptor subunit alpha-3
MGSGPLSLPLALSPPRLLLLLLLSLLPVARASEAEHRLFERLFEDYNEIIRPVANVSDPV
IIHFEVSMSQLVKVDEVNQIMETNLWLKQIWNDYKLKWNPSDYGGAEFMRVPAQKIWKPD
IVLYNNAVGDFQVDDKTKALLKYTGEVTWIPPAIFKSSCKIDVTYFPFDYQNCTMKFGSW
SYDKAKIDLVLIGSSMNLKDYWESGEWAIIKAPGYKHDIKYNCCEEIYPDITYSLYIRRL
PLFYTINLIIPCLLISFLTVLVFYLPSDCGEKVTLCISVLLSLTVFLLVITETIPSTSLV
IPLIGEYLLFTMIFVTLSIVITVFVLNVHYRTPTTHTMPSWVKTVFLNLLPRVMFMTRPT
SNEGNAQKPRPLYGAELSNLNCFSRAESKGCKEGYPCQDGMCGYCHHRRIKISNFSANLT
RSSSSESVDAVLSLSALSPEIKEAIQSVKYIAENMKAQNEAKEIQDDWKYVAMVIDRIFL
WVFTLVCILGTAGLFLQPLMAREDA
Number of residues
505
Molecular Weight
57479.54
Theoretical pI
6.4
GO Classification
Functions
acetylcholine binding / acetylcholine receptor activity / acetylcholine-activated cation-selective channel activity / drug binding / ligand-gated ion channel activity
Processes
activation of transmembrane receptor protein tyrosine kinase activity / behavioral response to nicotine / cation transmembrane transport / excitatory postsynaptic potential / heart development / ion transmembrane transport / ion transport / locomotory behavior / nervous system development / neurological system process / protein heterooligomerization / regulation of acetylcholine secretion, neurotransmission / regulation of dendrite morphogenesis / regulation of membrane potential / regulation of smooth muscle contraction / response to drug / response to inorganic substance / signal transduction / synaptic transmission / synaptic transmission involved in micturition / synaptic transmission, cholinergic
Components
acetylcholine-gated channel complex / cell junction / dendrite / integral component of membrane / neuron projection / neuronal cell body / plasma membrane / postsynaptic density / postsynaptic membrane / synapse
General Function
Ligand-gated ion channel activity
Specific Function
After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane.
Pfam Domain Function
Transmembrane Regions
241-265 273-291 307-328 478-497
Cellular Location
Cell junction
Gene sequence
>lcl|BSEQ0012491|Neuronal acetylcholine receptor subunit alpha-3 (CHRNA3)
ATGGGCTCTGGCCCGCTCTCGCTGCCCCTGGCGCTGTCGCCGCCGCGGCTGCTGCTGCTG
CTGCTGCTGTCTCTGCTGCCAGTGGCCAGGGCCTCAGAGGCTGAGCACCGTCTATTTGAG
CGGCTGTTTGAAGATTACAATGAGATCATCCGGCCTGTAGCCAACGTGTCTGACCCAGTC
ATCATCCATTTCGAGGTGTCCATGTCTCAGCTGGTGAAGGTGGATGAAGTAAACCAGATC
ATGGAGACCAACCTGTGGCTCAAGCAAATCTGGAATGACTACAAGCTGAAATGGAACCCC
TCTGACTATGGTGGGGCAGAGTTCATGCGTGTCCCTGCACAGAAGATCTGGAAGCCAGAC
ATTGTGCTGTATAACAATGCTGTTGGGGATTTCCAGGTGGACGACAAGACCAAAGCCTTA
CTCAAGTACACTGGGGAGGTGACTTGGATACCTCCGGCCATCTTTAAGAGCTCCTGTAAA
ATCGACGTGACCTACTTCCCGTTTGATTACCAAAACTGTACCATGAAGTTCGGTTCCTGG
TCCTACGATAAGGCGAAAATCGATCTGGTCCTGATCGGCTCTTCCATGAACCTCAAGGAC
TATTGGGAGAGCGGCGAGTGGGCCATCATCAAAGCCCCAGGCTACAAACACGACATCAAG
TACAACTGCTGCGAGGAGATCTACCCCGACATCACATACTCGCTGTACATCCGGCGCCTG
CCCTTGTTCTACACCATCAACCTCATCATCCCCTGCCTGCTCATCTCCTTCCTCACTGTG
CTCGTCTTCTACCTGCCCTCCGACTGCGGTGAGAAGGTGACCCTGTGCATTTCTGTCCTC
CTCTCCCTGACGGTGTTTCTCCTGGTGATCACTGAGACCATCCCTTCCACCTCGCTGGTC
ATCCCCCTGATTGGAGAGTACCTCCTGTTCACCATGATTTTTGTAACCTTGTCCATCGTC
ATCACCGTCTTCGTGCTCAACGTGCACTACAGAACCCCGACGACACACACAATGCCCTCA
TGGGTGAAGACTGTATTCTTGAACCTGCTCCCCAGGGTCATGTTCATGACCAGGCCAACA
AGCAACGAGGGCAACGCTCAGAAGCCGAGGCCCCTCTACGGTGCCGAGCTCTCAAATCTG
AATTGCTTCAGCCGCGCAGAGTCCAAAGGCTGCAAGGAGGGCTACCCCTGCCAGGACGGG
ATGTGTGGTTACTGCCACCACCGCAGGATAAAAATCTCCAATTTCAGTGCTAACCTCACG
AGAAGCTCTAGTTCTGAATCTGTTGATGCTGTGCTGTCCCTCTCTGCTTTGTCACCAGAA
ATCAAAGAAGCCATCCAAAGTGTCAAGTATATTGCTGAAAATATGAAAGCACAAAATGAA
GCCAAAGAGATTCAAGATGATTGGAAGTATGTTGCCATGGTGATTGATCGTATTTTTCTG
TGGGTTTTCACCCTGGTGTGCATTCTAGGGACAGCAGGATTGTTTCTGCAACCCCTGATG
GCCAGGGAAGATGCATAA
Chromosome Location
15
Locus
15q24
External Identifiers
ResourceLink
UniProtKB IDP32297
UniProtKB Entry NameACHA3_HUMAN
GenBank Protein ID177898
GenBank Gene IDM86383
HGNC IDHGNC:1957
General References
  1. Fornasari D, Chini B, Tarroni P, Clementi F: Molecular cloning of human neuronal nicotinic receptor alpha 3-subunit. Neurosci Lett. 1990 Apr 6;111(3):351-6. [Article]
  2. Mihovilovic M, Roses AD: Expression of mRNAs in human thymus coding for the alpha 3 subunit of a neuronal acetylcholine receptor. Exp Neurol. 1991 Feb;111(2):175-80. [Article]
  3. Elliott KJ, Ellis SB, Berckhan KJ, Urrutia A, Chavez-Noriega LE, Johnson EC, Velicelebi G, Harpold MM: 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. 1996 Fall;7(3):217-28. [Article]
  4. Groot Kormelink PJ, Luyten WH: 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. 1997 Jan 6;400(3):309-14. [Article]
  5. Rempel N, Heyers S, Engels H, Sleegers E, Steinlein OK: The structures of the human neuronal nicotinic acetylcholine receptor beta2- and alpha3-subunit genes (CHRNB2 and CHRNA3). Hum Genet. 1998 Dec;103(6):645-53. [Article]
  6. Lev-Lehman E, Bercovich D, Xu W, Stockton DW, Beaudet AL: Characterization of the human beta4 nAChR gene and polymorphisms in CHRNA3 and CHRNB4. J Hum Genet. 2001;46(7):362-6. [Article]
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  9. Lansdell SJ, Gee VJ, Harkness PC, Doward AI, Baker ER, Gibb AJ, Millar NS: RIC-3 enhances functional expression of multiple nicotinic acetylcholine receptor subtypes in mammalian cells. Mol Pharmacol. 2005 Nov;68(5):1431-8. Epub 2005 Aug 24. [Article]
  10. Chanock SJ, Hunter DJ: Genomics: when the smoke clears ... Nature. 2008 Apr 3;452(7187):537-8. doi: 10.1038/452537a. [Article]
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Drug Relations

Drug Relations
DrugBank IDNameDrug groupPharmacological action?ActionsDetails
DB00848Levamisoleapproved, investigational, vet_approved, withdrawnyesagonistDetails
DB00184NicotineapprovedunknownagonistDetails
DB01227Levacetylmethadolapproved, investigational, withdrawnunknownantagonistDetails
DB01273Vareniclineapproved, investigationalunknownpartial agonistDetails
DB01156BupropionapprovedunknownantagonistDetails
DB01090PentoliniumapprovedyesantagonistDetails
DB00514DextromethorphanapprovedunknownantagonistDetails
DB09028CytisineexperimentalunknownagonistDetails
DB00898EthanolapprovedunknownDetails
DB07720EpibatidineexperimentalunknownagonistDetails
DB05710GantacuriuminvestigationalyesantagonistDetails
DB00915AmantadineapprovedunknownantagonistDetails
DB00472Fluoxetineapproved, vet_approvedunknownantagonistDetails
DB00333MethadoneapprovedunknownantagonistDetails
DB00237Butabarbitalapproved, illicitunknowninhibitorDetails
DB00202SuccinylcholineapprovedyesagonistDetails
DB00565Cisatracuriumapproved, investigationalyesantagonistDetails