Gamma-aminobutyric acid receptor subunit alpha-4 is a protein that in humans is encoded by the GABRA4 gene.[5][6]

GABRA4
Identifiers
AliasesGABRA4, gamma-aminobutyric acid type A receptor alpha4 subunit, gamma-aminobutyric acid type A receptor subunit alpha4
External IDsOMIM: 137141; MGI: 95616; HomoloGene: 631; GeneCards: GABRA4; OMA:GABRA4 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_000809
NM_001204266
NM_001204267

NM_010251

RefSeq (protein)

NP_000800
NP_001191195
NP_001191196

Location (UCSC)Chr 4: 46.92 – 46.99 MbChr 5: 71.57 – 71.66 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA-A receptors, which are ligand-gated chloride channels. Chloride conductance of these channels can be modulated by agents such as benzodiazepines that bind to the GABA-A receptor. At least 16 distinct subunits of GABA-A receptors have been identified.[6]

A research study compared wild-type to knockout GABRA4 gene in mice. It was determined that the elimination of the GABRA4 gene displayed characteristics that are associated with autism spectrum disorder (ASD). These include increased spatial cognition and decreased social engagement, unlike the wild-type mice. A hippocampal transcriptome analysis was profiled on knockout mice, showing the increased activity of N-methyl-D-aspartate receptors. This plays a role in consciousness and learning resulting in those characteristics.[7]

See also

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References

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000109158Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000029211Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ McLean PJ, Farb DH, Russek SJ (Aug 1995). "Mapping of the alpha 4 subunit gene (GABRA4) to human chromosome 4 defines an alpha 2-alpha 4-beta 1-gamma 1 gene cluster: further evidence that modern GABAA receptor gene clusters are derived from an ancestral cluster". Genomics. 26 (3): 580–586. doi:10.1016/0888-7543(95)80178-O. PMID 7607683.
  6. ^ a b "Entrez Gene: GABRA4 gamma-aminobutyric acid (GABA) A receptor, alpha 4".
  7. ^ Fan C, Gao Y, Liang G, Huang L, Wang J, Yang X, Shi Y, Dräger UC, Zhong M, Gao TM, Yang X (December 2020). "Transcriptomics of Gabra4 knockout mice reveals common NMDAR pathways underlying autism, memory, and epilepsy | Molecular Autism". Molecular Autism. 11 (1): 13. doi:10.1186/s13229-020-0318-9. PMC 7007694. PMID 32033586. Retrieved 2022-05-12.

Further reading

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This article incorporates text from the United States National Library of Medicine, which is in the public domain.