Gabra2 gamma-aminobutyric acid type A receptor subunit alpha 2 [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Gabra2provided by RGD
Official Full Name: gamma-aminobutyric acid type A receptor subunit alpha 2provided by RGD
Primary source: RGD:61856
See related: EnsemblRapid:ENSRNOG00000002349 AllianceGenome:RGD:61856
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Summary: Predicted to enable GABA-gated chloride ion channel activity; ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential; and transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential. Predicted to contribute to GABA-A receptor activity; benzodiazepine receptor activity; and chloride channel activity. Predicted to be involved in several processes, including GABAergic synaptic transmission; chloride transmembrane transport; and inhibitory synapse assembly. Located in dendrite membrane. Is active in GABA-ergic synapse; postsynaptic specialization membrane; and presynaptic active zone membrane. Human ortholog(s) of this gene implicated in alcohol dependence; alcohol use disorder; autistic disorder; and developmental and epileptic encephalopathy 78. Orthologous to human GABRA2 (gamma-aminobutyric acid type A receptor subunit alpha2). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Restricted expression toward (RPKM 197.3) See more
Orthologs: human mouse all
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Genomic context

Location:: 14p11

Exon count:: 11

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	14	NC_086032.1 (37451218..37587458)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	14	NC_051349.1 (37097251..37230030)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	14	NC_005113.4 (39662411..39801082)

Chromosome 14 - NC_086032.1 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Selective knockdown of GABAA-alpha2 subunit in the dorsal dentate gyrus in adulthood induces anxiety, learning and memory deficits and impairs synaptic plasticity.
Title: Selective knockdown of GABAA-α2 subunit in the dorsal dentate gyrus in adulthood induces anxiety, learning and memory deficits and impairs synaptic plasticity.
Phosphorylation on Ser-359 of the alpha2 subunit in GABA type A receptors down-regulates their density at inhibitory synapses.
Title: Phosphorylation on Ser-359 of the α2 subunit in GABA type A receptors down-regulates their density at inhibitory synapses.
Sp4 functionally regulates the transcription of Gabra1 (GABAA alpha1) and Gabra2 (GABAA alpha2), but not Gabra3 (GABAA alpha3) subunit genes.
Title: Specificity protein 4 (Sp4) transcriptionally regulates inhibitory GABAergic receptors in neurons.
This study showed that the GABAA receptor alpha2 subtype activation suppresses retinal spreading depression.
Title: GABAA receptor α2 subtype activation suppresses retinal spreading depression.
The Gabra2 receptor in the dorsal root ganglia plays an important role in the pathophysiology of neuropathic pain caused by sciatic nerve injury.
Title: Silencing the α2 subunit of γ-aminobutyric acid type A receptors in rat dorsal root ganglia reveals its major role in antinociception posttraumatic nerve injury.
alpha2 GABAA receptor sub-units in the ventral hippocampus mediate unconditioned fear or anxiety, while alpha5 GABAA receptor sub-units in the dorsal hippocampus mediate conditioned fear memory.
Title: Α2 GABAA receptor sub-units in the ventral hippocampus and α5 GABAA receptor sub-units in the dorsal hippocampus mediate anxiety and fear memory.
restraint stress increased the density of alpha-2 GABA-A subunits in the basolateral amygdala in high anxiety rats
Title: Changes in the brain expression of alpha-2 subunits of the GABA-A receptor after chronic restraint stress in low- and high-anxiety rats.
GABA-A alpha2 and beta3 receptor subunits are present in bone marrow stem cells and adult stem cells and upregulated following glial differentiation.
Title: Expression of functional γ-aminobutyric acid type A receptors in Schwann-like adult stem cells.
presence of alpha2 and alpha3 subunits during early development might make them more amenable to becoming sensitized by environmental stressors, whereas the relative paucity of alpha1 subunits at this age might limit the sensitization of this subunit.
Title: Short- and long-term effects of juvenile stressor exposure on the expression of GABAA receptor subunits in rats.
Results describe the differential cellular distribution of alpha1, alpha2 and alpha3 GABA(A) receptor subunits in relation to striatopallidal (Str-GP) and pallidopallidal (GP-GP) synapses.
Title: Differential localization of GABA(A) receptor subunits in relation to rat striatopallidal and pallidopallidal synapses.

Submit: New GeneRIF Correction See all GeneRIFs (20)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
contributes_to GABA-A receptor activity	IBA Inferred from Biological aspect of Ancestor more info
enables GABA-A receptor activity	IEA Inferred from Electronic Annotation more info
enables GABA-A receptor activity	TAS Traceable Author Statement more info	PubMed
enables GABA-gated chloride ion channel activity	IBA Inferred from Biological aspect of Ancestor more info
enables GABA-gated chloride ion channel activity	IEA Inferred from Electronic Annotation more info
enables GABA-gated chloride ion channel activity	ISO Inferred from Sequence Orthology more info
contributes_to benzodiazepine receptor activity	IBA Inferred from Biological aspect of Ancestor more info
enables benzodiazepine receptor activity	IEA Inferred from Electronic Annotation more info
enables benzodiazepine receptor activity	ISO Inferred from Sequence Orthology more info
contributes_to chloride channel activity	IBA Inferred from Biological aspect of Ancestor more info
enables chloride channel activity	IEA Inferred from Electronic Annotation more info
enables extracellular ligand-gated monoatomic ion channel activity	IEA Inferred from Electronic Annotation more info
enables ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	IEA Inferred from Electronic Annotation more info
enables ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	ISO Inferred from Sequence Orthology more info
enables transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	IEA Inferred from Electronic Annotation more info
enables transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
involved_in chloride transmembrane transport	IBA Inferred from Biological aspect of Ancestor more info
involved_in chloride transmembrane transport	IEA Inferred from Electronic Annotation more info
involved_in chloride transmembrane transport	ISO Inferred from Sequence Orthology more info
involved_in gamma-aminobutyric acid signaling pathway	IBA Inferred from Biological aspect of Ancestor more info
involved_in gamma-aminobutyric acid signaling pathway	IEA Inferred from Electronic Annotation more info
involved_in gamma-aminobutyric acid signaling pathway	ISO Inferred from Sequence Orthology more info
involved_in inhibitory synapse assembly	IBA Inferred from Biological aspect of Ancestor more info
involved_in inhibitory synapse assembly	IEA Inferred from Electronic Annotation more info
involved_in inhibitory synapse assembly	ISO Inferred from Sequence Orthology more info
involved_in inhibitory synapse assembly	ISS Inferred from Sequence or Structural Similarity more info
involved_in regulation of postsynaptic membrane potential	IBA Inferred from Biological aspect of Ancestor more info
involved_in regulation of postsynaptic membrane potential	IEA Inferred from Electronic Annotation more info
involved_in regulation of presynaptic membrane potential	IEA Inferred from Electronic Annotation more info
involved_in synaptic transmission, GABAergic	IBA Inferred from Biological aspect of Ancestor more info

Component	Evidence Code	Pubs
part_of GABA-A receptor complex	IBA Inferred from Biological aspect of Ancestor more info
part_of GABA-A receptor complex	IEA Inferred from Electronic Annotation more info
part_of GABA-A receptor complex	ISO Inferred from Sequence Orthology more info
is_active_in GABA-ergic synapse	IDA Inferred from Direct Assay more info	PubMed
located_in GABA-ergic synapse	IEA Inferred from Electronic Annotation more info
is_active_in GABA-ergic synapse	ISO Inferred from Sequence Orthology more info
located_in axon	IEA Inferred from Electronic Annotation more info
located_in axon	ISO Inferred from Sequence Orthology more info
part_of chloride channel complex	IEA Inferred from Electronic Annotation more info
located_in cytoplasmic vesicle membrane	IEA Inferred from Electronic Annotation more info
located_in dendrite	IEA Inferred from Electronic Annotation more info
located_in dendrite	ISO Inferred from Sequence Orthology more info
is_active_in dendrite membrane	IBA Inferred from Biological aspect of Ancestor more info
located_in dendrite membrane	IDA Inferred from Direct Assay more info	PubMed
located_in inhibitory synapse	IEA Inferred from Electronic Annotation more info
located_in inhibitory synapse	ISO Inferred from Sequence Orthology more info
located_in neuronal cell body	IEA Inferred from Electronic Annotation more info
located_in neuronal cell body	ISO Inferred from Sequence Orthology more info
is_active_in postsynapse	IBA Inferred from Biological aspect of Ancestor more info
located_in postsynapse	ISO Inferred from Sequence Orthology more info
is_active_in postsynaptic specialization membrane	IDA Inferred from Direct Assay more info	PubMed
located_in postsynaptic specialization membrane	IEA Inferred from Electronic Annotation more info
is_active_in postsynaptic specialization membrane	ISO Inferred from Sequence Orthology more info
is_active_in presynaptic active zone membrane	IDA Inferred from Direct Assay more info	PubMed
located_in synaptic vesicle membrane	IEA Inferred from Electronic Annotation more info
located_in synaptic vesicle membrane	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: gamma-aminobutyric acid receptor subunit alpha-2

Names: GABA(A) receptor subunit alpha-2; GABAAR subunit alpha-2; gamma-aminobutyric acid (GABA) A receptor, alpha 2; gamma-aminobutyric acid (GABA-A) receptor, subunit alpha 2; gamma-aminobutyric acid receptor A2 subunit; gamma-aminobutyric acid type A receptor alpha2 subunit

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_001135779.3 → NP_001129251.3 gamma-aminobutyric acid receptor subunit alpha-2 precursor

Status: VALIDATED

Source sequence(s)

JAXUCZ010000014

UniProtKB/Swiss-Prot

P23576

UniProtKB/TrEMBL

F1LMU7

Related

ENSRNOP00000060621.3, ENSRNOT00000064779.6

Conserved Domains (2) summary

TIGR00860
Location:11 → 440

LIC; Cation transporter family protein

cd19035
Location:47 → 249

LGIC_ECD_GABAAR_A2; extracellular domain of gamma-aminobutyric acid receptor subunit alpha-2 (GABAAR-A2 or GABRA2)