NameGamma-aminobutyric acid receptor subunit beta-1
Synonyms
  • GABA(A) receptor subunit beta-1
Gene NameGABRB1
OrganismHuman
Amino acid sequence
>lcl|BSEQ0004603|Gamma-aminobutyric acid receptor subunit beta-1
MWTVQNRESLGLLSFPVMITMVCCAHSTNEPSNMSYVKETVDRLLKGYDIRLRPDFGGPP
VDVGMRIDVASIDMVSEVNMDYTLTMYFQQSWKDKRLSYSGIPLNLTLDNRVADQLWVPD
TYFLNDKKSFVHGVTVKNRMIRLHPDGTVLYGLRITTTAACMMDLRRYPLDEQNCTLEIE
SYGYTTDDIEFYWNGGEGAVTGVNKIELPQFSIVDYKMVSKKVEFTTGAYPRLSLSFRLK
RNIGYFILQTYMPSTLITILSWVSFWINYDASAARVALGITTVLTMTTISTHLRETLPKI
PYVKAIDIYLMGCFVFVFLALLEYAFVNYIFFGKGPQKKGASKQDQSANEKNKLEMNKVQ
VDAHGNILLSTLEIRNETSGSEVLTSVSDPKATMYSYDSASIQYRKPLSSREAYGRALDR
HGVPSKGRIRRRASQLKVKIPDLTDVNSIDKWSRMFFPITFSLFNVVYWLYYVH
Number of residues474
Molecular Weight54234.085
Theoretical pI9.01
GO Classification
Functions
  • ligand-gated ion channel activity
  • extracellular ligand-gated ion channel activity
  • chloride channel activity
  • GABA-A receptor activity
Processes
  • chloride transmembrane transport
  • regulation of membrane potential
  • neurological system process
  • response to progesterone
  • synaptic transmission
  • cellular response to histamine
  • ovulation cycle
  • transmembrane transport
  • ion transmembrane transport
  • transport
  • central nervous system neuron development
  • ion transport
  • response to toxic substance
  • signal transduction
Components
  • nuclear envelope
  • postsynaptic membrane
  • chloride channel complex
  • plasma membrane
  • GABA-A receptor complex
  • cell junction
  • integral component of plasma membrane
  • dendrite
  • synapse
  • cytoplasm
  • neuron projection
General FunctionLigand-gated ion channel activity
Specific FunctionComponent of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Pfam Domain Function
Transmembrane Regions246-267 271-293 305-327 452-473
GenBank Protein ID31635
UniProtKB IDP18505
UniProtKB Entry NameGBRB1_HUMAN
Cellular LocationCell junction
Gene sequence
>lcl|BSEQ0020610|Gamma-aminobutyric acid receptor subunit beta-1 (GABRB1)
ATGTGGACAGTACAAAATCGAGAGAGTCTGGGGCTTCTCTCTTTCCCTGTGATGATTACC
ATGGTCTGTTGTGCACACAGCACCAATGAACCCAGCAACATGTCATACGTGAAAGAGACA
GTGGACAGATTGCTCAAAGGATATGACATTCGCTTGCGGCCGGACTTCGGAGGGCCCCCC
GTCGACGTTGGGATGCGGATCGATGTCGCCAGCATAGACATGGTCTCCGAAGTGAATATG
GATTATACACTCACCATGTATTTCCAGCAGTCTTGGAAAGACAAAAGGCTTTCTTATTCT
GGAATCCCACTGAACCTCACCCTAGACAATAGGGTAGCTGACCAACTCTGGGTACCAGAC
ACCTACTTTCTGAATGACAAGAAATCATTTGTGCATGGGGTCACAGTGAAAAATCGAATG
ATTCGACTGCATCCTGATGGAACAGTTCTCTATGGACTCCGAATCACAACCACAGCTGCA
TGTATGATGGATCTTCGAAGATATCCACTGGATGAGCAGAACTGCACCCTGGAGATCGAA
AGTTATGGCTATACCACTGATGACATTGAATTTTACTGGAATGGAGGAGAAGGGGCAGTC
ACTGGTGTTAATAAAATCGAACTTCCTCAATTTTCAATTGTTGACTACAAGATGGTGTCT
AAGAAGGTGGAGTTCACAACAGGAGCGTATCCACGACTGTCACTAAGTTTTCGTCTAAAG
AGAAACATTGGTTACTTCATTTTGCAAACCTACATGCCTTCTACACTGATTACAATTCTG
TCCTGGGTGTCTTTTTGGATCAACTATGATGCATCTGCAGCCAGAGTCGCACTAGGAATC
ACGACAGTGCTTACAATGACAACCATCAGCACCCACCTCAGGGAGACCCTGCCAAAGATC
CCTTATGTCAAAGCGATTGATATTTATCTGATGGGTTGCTTTGTGTTTGTGTTCCTGGCT
CTGCTGGAGTATGCCTTTGTAAATTACATCTTCTTTGGGAAAGGCCCTCAGAAAAAGGGA
GCTAGCAAACAAGACCAGAGTGCCAATGAGAAGAATAAACTGGAGATGAATAAAGTCCAG
GTCGACGCCCACGGTAACATTCTCCTCAGCACCCTGGAAATCCGGAATGAGACGAGTGGC
TCGGAAGTGCTCACGAGCGTGAGCGACCCCAAGGCCACCATGTACTCCTATGACAGCGCC
AGCATCCAGTACCGCAAGCCCCTGAGCAGCCGCGAGGCCTACGGGCGCGCCCTGGACCGG
CACGGGGTACCCAGCAAGGGGCGCATCCGCAGGCGTGCCTCCCAGCTCAAAGTCAAGATC
CCCGACTTGACTGATGTGAATTCCATAGACAAGTGGTCCCGAATGTTTTTCCCCATCACC
TTTTCTCTTTTTAATGTCGTCTATTGGCTTTACTATGTACACTGA
GenBank Gene IDX14767
GeneCard IDNot Available
GenAtlas IDGABRB1
HGNC IDHGNC:4081
Chromosome Location4
Locus4p12
References
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  2. Kirkness EF, Kusiak JW, Fleming JT, Menninger J, Gocayne JD, Ward DC, Venter JC: Isolation, characterization, and localization of human genomic DNA encoding the beta 1 subunit of the GABAA receptor (GABRB1). Genomics. 1991 Aug;10(4):985-95. 1655634
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