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NameGamma-aminobutyric acid receptor subunit beta-3
Synonyms
  • GABA(A) receptor subunit beta-3
Gene NameGABRB3
OrganismHuman
Amino acid sequence
>lcl|BSEQ0004605|Gamma-aminobutyric acid receptor subunit beta-3
MWGLAGGRLFGIFSAPVLVAVVCCAQSVNDPGNMSFVKETVDKLLKGYDIRLRPDFGGPP
VCVGMNIDIASIDMVSEVNMDYTLTMYFQQYWRDKRLAYSGIPLNLTLDNRVADQLWVPD
TYFLNDKKSFVHGVTVKNRMIRLHPDGTVLYGLRITTTAACMMDLRRYPLDEQNCTLEIE
SYGYTTDDIEFYWRGGDKAVTGVERIELPQFSIVEHRLVSRNVVFATGAYPRLSLSFRLK
RNIGYFILQTYMPSILITILSWVSFWINYDASAARVALGITTVLTMTTINTHLRETLPKI
PYVKAIDMYLMGCFVFVFLALLEYAFVNYIFFGRGPQRQKKLAEKTAKAKNDRSKSESNR
VDAHGNILLTSLEVHNEMNEVSGGIGDTRNSAISFDNSGIQYRKQSMPREGHGRFLGDRS
LPHKKTHLRRRSSQLKIKIPDLTDVNAIDRWSRIVFPFTFSLFNLVYWLYYVN
Number of residues473
Molecular Weight54115.04
Theoretical pI9.41
GO Classification
Functions
  • extracellular ligand-gated ion channel activity
  • chloride channel activity
  • GABA-A receptor activity
  • GABA-gated chloride ion channel activity
Processes
  • signal transduction
  • negative regulation of neuron apoptotic process
  • regulation of membrane potential
  • neurological system process
  • inhibitory postsynaptic potential
  • synaptic transmission
  • inner ear receptor cell development
  • innervation
  • cellular response to histamine
  • palate development
  • transmembrane transport
  • sensory perception of sound
  • ion transmembrane transport
  • chloride transmembrane transport
  • transport
  • cochlea development
Components
  • postsynaptic membrane
  • chloride channel complex
  • plasma membrane
  • GABA-A receptor complex
  • cell junction
  • integral component of plasma membrane
  • synapse
  • neuron projection
General FunctionGaba-gated chloride 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.
Pfam Domain Function
Transmembrane Regions246-267 271-293 305-327 451-472
GenBank Protein ID182925
UniProtKB IDP28472
UniProtKB Entry NameGBRB3_HUMAN
Cellular LocationCell junction
Gene sequence
>lcl|BSEQ0016761|Gamma-aminobutyric acid receptor subunit beta-3 (GABRB3)
ATGTGGGGCCTTGCGGGAGGAAGGCTTTTCGGCATCTTCTCGGCCCCGGTGCTGGTGGCT
GTGGTGTGCTGCGCCCAGAGTGTGAACGATCCCGGGAACATGTCCTTTGTGAAGGAGACG
GTGGACAAGCTGTTGAAAGGCTACGACATTCGCCTAAGACCCGACTTCGGGGGTCCCCCG
GTCTGCGTGGGGATGAACATCGACATCGCCAGCATCGACATGGTTTCCGAAGTCAACATG
GATTATACCTTAACCATGTATTTTCAACAATATTGGAGAGATAAAAGGCTCGCCTATTCT
GGGATCCCTCTCAACCTCACGCTTGACAATCGAGTGGCTGACCAGCTATGGGTGCCCGAC
ACATATTTCTTAAATGACAAAAAGTCATTTGTGCATGGAGTGACAGTGAAAAACCGCATG
ATCCGTCTTCACCCTGATGGGACAGTGCTGTATGGGCTCAGAATCACCACGACAGCAGCA
TGCATGATGGACCTCAGGAGATACCCCCTGGACGAGCAGAACTGCACTCTGGAAATTGAA
AGCTATGGCTACACCACGGATGACATTGAGTTTTACTGGCGAGGCGGGGACAAGGCTGTT
ACCGGAGTGGAAAGGATTGAGCTCCCGCAGTTCTCCATCGTGGAGCACCGTCTGGTCTCG
AGGAATGTTGTCTTCGCCACAGGTGCCTATCCTCGACTGTCACTGAGCTTTCGGTTGAAG
AGGAACATTGGATACTTCATTCTTCAGACTTATATGCCCTCTATACTGATAACGATTCTG
TCGTGGGTGTCCTTCTGGATCAATTATGATGCATCTGCTGCTAGAGTTGCCCTCGGGATC
ACAACTGTGCTGACAATGACAACCATCAACACCCACCTTCGGGAGACCTTGCCCAAAATC
CCCTATGTCAAAGCCATTGACATGTACCTTATGGGCTGCTTCGTCTTTGTGTTCCTGGCC
CTTCTGGAGTATGCCTTTGTCAACTACATTTTCTTTGGAAGAGGCCCTCAAAGGCAGAAG
AAGCTTGCAGAAAAGACAGCCAAGGCAAAGAATGACCGTTCAAAGAGCGAAAGCAACCGG
GTGGATGCTCATGGAAATATTCTGTTGACATCGCTGGAAGTTCACAATGAAATGAATGAG
GTCTCAGGCGGCATTGGCGATACCAGGAATTCAGCAATATCCTTTGACAACTCAGGAATC
CAGTACAGGAAACAGAGCATGCCTCGAGAAGGGCATGGGCGATTCCTGGGGGACAGAAGC
CTCCCGCACAAGAAGACCCATCTACGGAGGAGGTCTTCACAGCTCAAAATTAAAATACCT
GATCTAACCGATGTGAATGCCATAGACAGATGGTCCAGGATCGTGTTTCCATTCACTTTT
TCTCTTTTCAACTTAGTTTACTGGCTGTACTATGTTAACTGA
GenBank Gene IDM82919
GeneCard IDNot Available
GenAtlas IDGABRB3
HGNC IDHGNC:4083
Chromosome Location15
Locus15q11.2-q12
References
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  5. Kirkness EF, Fraser CM: A strong promoter element is located between alternative exons of a gene encoding the human gamma-aminobutyric acid-type A receptor beta 3 subunit (GABRB3). J Biol Chem. 1993 Feb 25;268(6):4420-8. 8382702
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