Neuronal acetylcholine receptor subunit alpha-7


NameNeuronal acetylcholine receptor subunit alpha-7
SynonymsNACHRA7
Gene NameCHRNA7
OrganismHuman
Amino acid sequence
>lcl|BSEQ0004597|Neuronal acetylcholine receptor subunit alpha-7
MRCSPGGVWLALAASLLHVSLQGEFQRKLYKELVKNYNPLERPVANDSQPLTVYFSLSLL
QIMDVDEKNQVLTTNIWLQMSWTDHYLQWNVSEYPGVKTVRFPDGQIWKPDILLYNSADE
RFDATFHTNVLVNSSGHCQYLPPGIFKSSCYIDVRWFPFDVQHCKLKFGSWSYGGWSLDL
QMQEADISGYIPNGEWDLVGIPGKRSERFYECCKEPYPDVTFTVTMRRRTLYYGLNLLIP
CVLISALALLVFLLPADSGEKISLGITVLLSLTVFMLLVAEIMPATSDSVPLIAQYFAST
MIIVGLSVVVTVIVLQYHHHDPDGGKMPKWTRVILLNWCAWFLRMKRPGEDKVRPACQHK
QRRCSLASVEMSAVAPPPASNGNLLYIGFRGLDGVHCVPTPDSGVVCGRMACSPTHDEHL
LHGGQPPEGDPDLAKILEEVRYIANRFRCQDESEAVCSEWKFAACVVDRLCLMAFSVFTI
ICTIGILMSAPNFVEAVSKDFA
Number of residues502
Molecular Weight56448.925
Theoretical pI6.44
GO Classification
Functions
    protein homodimerization activity
    drug binding
    acetylcholine-activated cation-selective channel activity
    beta-amyloid binding
    acetylcholine-gated cation channel activity
    toxic substance binding
    acetylcholine binding
    acetylcholine receptor activity
    chloride channel regulator activity
Processes
    positive regulation of heart rate involved in baroreceptor response to decreased systemic arterial blood pressure
    negative regulation of tumor necrosis factor production
    neuronal action potential
    endocytosis
    B cell activation
    cation transmembrane transport
    behavioral response to nicotine
    memory
    behavioral response to ethanol
    cognition
    regulation of synaptic transmission, dopaminergic
    ion transmembrane transport
    negative regulation of inflammatory response
    negative regulation of interleukin-6 production
    ion transport
    positive regulation of angiogenesis
    response to hypoxia
    calcium ion transport
    activation of MAPK activity
    response to food
    signal transduction
    T cell activation
    associative learning
    generation of ovulation cycle rhythm
    response to nicotine
    dopamine biosynthetic process
    cellular calcium ion homeostasis
    regulation of norepinephrine secretion
    regulation of membrane potential
    synaptic transmission, cholinergic
    sperm motility
    synaptic transmission
    positive regulation of cell proliferation
    negative regulation of interleukin-1 beta production
Components
    cell junction
    dendritic spine
    membrane raft
    integral component of membrane
    neuron projection
    neuronal cell body
    postsynaptic density
    external side of plasma membrane
    cytoplasm
    presynaptic membrane
    acetylcholine-gated channel complex
    apical plasma membrane
    dendritic shaft
    asymmetric synapse
    synapse
    postsynaptic membrane
    plasma membrane
    axolemma
    growth cone
General FunctionToxic substance binding
Specific FunctionAfter 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. The channel is blocked by alpha-bungarotoxin.
Transmembrane Regions231-255 262-280 296-317 470-490
GenBank Protein ID496607
UniProtKB IDP36544
UniProtKB Entry NameACHA7_HUMAN
Cellular LocationCell junction
Gene sequence
>lcl|BSEQ0020606|Neuronal acetylcholine receptor subunit alpha-7 (CHRNA7)
ATGCGCTGCTCGCCGGGAGGCGTCTGGCTGGCGCTGGCCGCGTCGCTCCTGCACGTGTCC
CTGCAAGGCGAGTTCCAGAGGAAGCTTTACAAGGAGCTGGTCAAGAACTACAATCCCTTG
GAGAGGCCCGTGGCCAATGACTCGCAACCACTCACCGTCTACTTCTCCCTGAGCCTCCTG
CAGATCATGGACGTGGATGAGAAGAACCAAGTTTTAACCACCAACATTTGGCTGCAAATG
TCTTGGACAGATCACTATTTACAGTGGAATGTGTCAGAATATCCAGGGGTGAAGACTGTT
CGTTTCCCAGATGGCCAGATTTGGAAACCAGACATTCTTCTCTATAACAGTGCTGATGAG
CGCTTTGACGCCACATTCCACACTAACGTGTTGGTGAATTCTTCTGGGCATTGCCAGTAC
CTGCCTCCAGGCATATTCAAGAGTTCCTGCTACATCGATGTACGCTGGTTTCCCTTTGAT
GTGCAGCACTGCAAACTGAAGTTTGGGTCCTGGTCTTACGGAGGCTGGTCCTTGGATCTG
CAGATGCAGGAGGCAGATATCAGTGGCTATATCCCCAATGGAGAATGGGACCTAGTGGGA
ATCCCCGGCAAGAGGAGTGAAAGGTTCTATGAGTGCTGCAAAGAGCCCTACCCCGATGTC
ACCTTCACAGTGACCATGCGCCGCAGGACGCTCTACTATGGCCTCAACCTGCTGATCCCC
TGTGTGCTCATCTCCGCCCTCGCCCTGCTGGTGTTCCTGCTTCCTGCAGATTCCGGGGAG
AAGATTTCCCTGGGGATAACAGTCTTACTCTCTCTTACCGTCTTCATGCTGCTCGTGGCT
GAGATCATGCCCGCAACATCCGATTCGGTACCATTGATAGCCCAGTACTTCGCCAGCACC
ATGATCATCGTGGGCCTCTCGGTGGTGGTGACAGTGATCGTGCTGCAGTACCACCACCAC
GACCCCGACGGGGGCAAGATGCCCAAGTGGACCAGAGTCATCCTTCTGAACTGGTGCGCG
TGGTTCCTGCGAATGAAGAGGCCCGGGGAGGACAAGGTGCGCCCGGCCTGCCAGCACAAG
CAGCGGCGCTGCAGCCTGGCCAGTGTGGAGATGAGCGCCGTGGCGCCGCCGCCCGCCAGC
AACGGGAACCTGCTGTACATCGGCTTCCGCGGCCTGGACGGCGTGCACTGTGTCCCGACC
CCCGACTCTGGGGTAGTGTGTGGCCGCATGGCCTGCTCCCCCACGCACGATGAGCACCTC
CTGCACGGCGGGCAACCCCCCGAGGGGGACCCGGACTTGGCCAAGATCCTGGAGGAGGTC
CGCTACATTGCCAACCGCTTCCGCTGCCAGGACGAAAGCGAGGCGGTCTGCAGCGAGTGG
AAGTTCGCCGCCTGTGTGGTGGACCGCCTGTGCCTCATGGCCTTCTCGGTCTTCACCATC
ATCTGCACCATCGGCATCCTGATGTCGGCTCCCAACTTCGTGGAGGCCGTGTCCAAAGAC
TTTGCGTAA
GenBank Gene IDX70297
GeneCard IDNone
GenAtlas IDCHRNA7
HGNC IDHGNC:1960
Chromosome Location15
Locus15q14
References
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  2. 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.[8906617 ]
  3. 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.[9009220 ]
  4. Zody MC, Garber M, Sharpe T, Young SK, Rowen L, O'Neill K, Whittaker CA, Kamal M, Chang JL, Cuomo CA, Dewar K, FitzGerald MG, Kodira CD, Madan A, Qin S, Yang X, Abbasi N, Abouelleil A, Arachchi HM, Baradarani L, Birditt B, Bloom S, Bloom T, Borowsky ML, Burke J, Butler J, Cook A, DeArellano K, DeCaprio D, Dorris L 3rd, Dors M, Eichler EE, Engels R, Fahey J, Fleetwood P, Friedman C, Gearin G, Hall JL, Hensley G, Johnson E, Jones C, Kamat A, Kaur A, Locke DP, Madan A, Munson G, Jaffe DB, Lui A, Macdonald P, Mauceli E, Naylor JW, Nesbitt R, Nicol R, O'Leary SB, Ratcliffe A, Rounsley S, She X, Sneddon KM, Stewart S, Sougnez C, Stone SM, Topham K, Vincent D, Wang S, Zimmer AR, Birren BW, Hood L, Lander ES, Nusbaum C: Analysis of the DNA sequence and duplication history of human chromosome 15. Nature. 2006 Mar 30;440(7084):671-5.[16572171 ]
  5. Chini B, Raimond E, Elgoyhen AB, Moralli D, Balzaretti M, Heinemann S: Molecular cloning and chromosomal localization of the human alpha 7-nicotinic receptor subunit gene (CHRNA7). Genomics. 1994 Jan 15;19(2):379-81.[8188270 ]
  6. Riley B, Williamson M, Collier D, Wilkie H, Makoff A: A 3-Mb map of a large Segmental duplication overlapping the alpha7-nicotinic acetylcholine receptor gene (CHRNA7) at human 15q13-q14. Genomics. 2002 Feb;79(2):197-209.[11829490 ]
  7. Harris RA, Yang A, Stein RC, Lucy K, Brusten L, Herath A, Parekh R, Waterfield MD, O'Hare MJ, Neville MA, Page MJ, Zvelebil MJ: Cluster analysis of an extensive human breast cancer cell line protein expression map database. Proteomics. 2002 Feb;2(2):212-23.[11840567 ]
  8. Williams ME, Burton B, Urrutia A, Shcherbatko A, Chavez-Noriega LE, Cohen CJ, Aiyar J: Ric-3 promotes functional expression of the nicotinic acetylcholine receptor alpha7 subunit in mammalian cells. J Biol Chem. 2005 Jan 14;280(2):1257-63. Epub 2004 Oct 25.[15504725 ]
  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.[16120769 ]
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