Gria2 glutamate ionotropic receptor AMPA type subunit 2 [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Gria2provided by RGD
Official Full Name: glutamate ionotropic receptor AMPA type subunit 2provided by RGD
Primary source: RGD:61862
See related: EnsemblRapid:ENSRNOG00000054204 AllianceGenome:RGD:61862
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Also known as: GluA2; GluR2; gluR-B; GluR-K2
Summary: Glutamate receptors are the predominant excitatory neurotransmitter receptors in the mammalian brain and are activated in a variety of normal neurophysiologic processes. This gene product belongs to a family of glutamate receptors that are sensitive to alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA), and function as ligand-activated cation channels. These channels are assembled from 4 related subunits, Gria1-4. The subunit encoded by this gene (Gria2) is subject to RNA editing (Q/R and R/G), which is thought to render the channels impermeable to Ca(2+), and to affect the kinetic aspects of these channels in rat brain. Alternative splicing, resulting in transcript variants encoding different isoforms (flip and flop), has been noted for this gene. [provided by RefSeq, Jul 2008]
Expression: Restricted expression toward (RPKM 706.1) See more
Orthologs: human mouse all
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Genomic context

Location:: 2q33

Exon count:: 17

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	2	NC_086020.1 (168247490..168367616, complement)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	2	NC_051337.1 (165949379..166069510, complement)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	2	NC_005101.4 (179584302..179704629, complement)

Chromosome 2 - NC_086020.1 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?

The dorsal hippocampal CA3 regulates spatial reference memory through the CtBP2/GluR2 pathway.
Title: The dorsal hippocampal CA3 regulates spatial reference memory through the CtBP2/GluR2 pathway.
Mechanisms underlying TARP modulation of the GluA1/2-gamma8 AMPA receptor.
Title: Mechanisms underlying TARP modulation of the GluA1/2-γ8 AMPA receptor.
The application of the self-probing primer PCR for quantitative expression analysis of R607Q (un)edited GluA2 AMPA receptor mRNA.
Title: The application of the self-probing primer PCR for quantitative expression analysis of R607Q (un)edited GluA2 AMPA receptor mRNA.
AMPA Receptor Expression Requirement During Long-Term Memory Retrieval and Its Association with mTORC1 Signaling.
Title: AMPA Receptor Expression Requirement During Long-Term Memory Retrieval and Its Association with mTORC1 Signaling.
Short-term high-fat feeding induces a reversible net decrease in synaptic AMPA receptors in the hypothalamus.
Title: Short-term high-fat feeding induces a reversible net decrease in synaptic AMPA receptors in the hypothalamus.
Circadian Regulation of GluA2 mRNA Processing in the Rat Suprachiasmatic Nucleus and Other Brain Structures.
Title: Circadian Regulation of GluA2 mRNA Processing in the Rat Suprachiasmatic Nucleus and Other Brain Structures.
Binding of a negative allosteric modulator and competitive antagonist can occur simultaneously at the ionotropic glutamate receptor GluA2.
Title: Binding of a negative allosteric modulator and competitive antagonist can occur simultaneously at the ionotropic glutamate receptor GluA2.
Translocation of AMPA Receptors in the Dorsal Horn of the Spinal Cord Corresponding to Long-term Depression Following Pulsed Radiofrequency Stimulation at the Dorsal Root Ganglion.
Title: Translocation of AMPA Receptors in the Dorsal Horn of the Spinal Cord Corresponding to Long-term Depression Following Pulsed Radiofrequency Stimulation at the Dorsal Root Ganglion.
Vesicular glutamate transporter 2-immunoreactive afferent nerve terminals in rat carotid sinus baroreceptors.
Title: Vesicular glutamate transporter 2-immunoreactive afferent nerve terminals in rat carotid sinus baroreceptors.
GluR2 endocytosis-dependent protein degradation in the amygdala mediates memory updating.
Title: GluR2 endocytosis-dependent protein degradation in the amygdala mediates memory updating.

Submit: New GeneRIF Correction See all GeneRIFs (176)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

PMC283538P1 (e-PCR)
- UniSTS:272406

Gria2 (e-PCR), detects polymorphism
- UniSTS:518488

L32372 (e-PCR)
- UniSTS:124897

Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables AMPA glutamate receptor activity	IBA Inferred from Biological aspect of Ancestor more info
enables AMPA glutamate receptor activity	IDA Inferred from Direct Assay more info	PubMed
enables AMPA glutamate receptor activity	TAS Traceable Author Statement more info	PubMed
enables PDZ domain binding	IDA Inferred from Direct Assay more info	PubMed
enables PDZ domain binding	IPI Inferred from Physical Interaction more info	PubMed
enables SNARE binding	IPI Inferred from Physical Interaction more info	PubMed
enables amyloid-beta binding	IPI Inferred from Physical Interaction more info	PubMed
enables cytoskeletal protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables extracellular ligand-gated monoatomic ion channel activity	IDA Inferred from Direct Assay more info	PubMed
enables extracellularly glutamate-gated ion channel activity	ISO Inferred from Sequence Orthology more info
enables glutamate receptor binding	IPI Inferred from Physical Interaction more info	PubMed
enables glutamate-gated calcium ion channel activity	IDA Inferred from Direct Assay more info	PubMed
enables glutamate-gated receptor activity	IDA Inferred from Direct Assay more info	PubMed
enables glutamate-gated receptor activity	IEA Inferred from Electronic Annotation more info
enables glutamate-gated receptor activity	ISO Inferred from Sequence Orthology more info
enables glutamate-gated receptor activity	TAS Traceable Author Statement more info	PubMed
enables identical protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables immunoglobulin binding	IPI Inferred from Physical Interaction more info	PubMed
enables ionotropic glutamate receptor binding	IPI Inferred from Physical Interaction more info	PubMed
enables kainate selective glutamate receptor activity	IDA Inferred from Direct Assay more info	PubMed
enables ligand-gated monoatomic cation channel activity	IDA Inferred from Direct Assay more info	PubMed
enables 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	IDA Inferred from Direct Assay more info	PubMed
enables ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	IMP Inferred from Mutant Phenotype more info	PubMed
enables ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	NAS Non-traceable Author Statement more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein kinase binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein-containing complex binding	IPI Inferred from Physical Interaction more info	PubMed
enables scaffold protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables signaling receptor activity	IDA Inferred from Direct Assay more info	PubMed
enables signaling receptor activity	IEA Inferred from Electronic Annotation more info
enables transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	IBA Inferred from Biological aspect of Ancestor more info
enables transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	IDA Inferred from Direct Assay more info	PubMed
enables transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	IMP Inferred from Mutant Phenotype more info	PubMed
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 calcium-mediated signaling	IEA Inferred from Electronic Annotation more info
involved_in cellular response to brain-derived neurotrophic factor stimulus	IDA Inferred from Direct Assay more info	PubMed
involved_in cellular response to glycine	IDA Inferred from Direct Assay more info	PubMed
involved_in cerebral cortex development	IEP Inferred from Expression Pattern more info	PubMed
involved_in chemical synaptic transmission	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within chemical synaptic transmission	ISO Inferred from Sequence Orthology more info
involved_in establishment of protein localization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in excitatory postsynaptic potential	IEA Inferred from Electronic Annotation more info
involved_in ionotropic glutamate receptor signaling pathway	IEA Inferred from Electronic Annotation more info
involved_in ionotropic glutamate receptor signaling pathway	ISO Inferred from Sequence Orthology more info
involved_in ionotropic glutamate receptor signaling pathway	ISS Inferred from Sequence or Structural Similarity more info
involved_in modulation of chemical synaptic transmission	IBA Inferred from Biological aspect of Ancestor more info
involved_in monoatomic cation transmembrane transport	IEA Inferred from Electronic Annotation more info
involved_in monoatomic ion transmembrane transport	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of synaptic transmission	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein tetramerization	IDA Inferred from Direct Assay more info	PubMed
involved_in receptor internalization	IDA Inferred from Direct Assay more info	PubMed
involved_in regulation of presynaptic membrane potential	IEA Inferred from Electronic Annotation more info
involved_in regulation of receptor recycling	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of synaptic transmission, glutamatergic	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in response to fungicide	IEP Inferred from Expression Pattern more info	PubMed
involved_in response to lithium ion	IEP Inferred from Expression Pattern more info	PubMed
involved_in synaptic transmission, glutamatergic	IBA Inferred from Biological aspect of Ancestor more info

Component	Evidence Code	Pubs
part_of AMPA glutamate receptor complex	IBA Inferred from Biological aspect of Ancestor more info
part_of AMPA glutamate receptor complex	IDA Inferred from Direct Assay more info	PubMed
part_of AMPA glutamate receptor complex	ISO Inferred from Sequence Orthology more info
is_active_in Schaffer collateral - CA1 synapse	IDA Inferred from Direct Assay more info	PubMed
is_active_in Schaffer collateral - CA1 synapse	IMP Inferred from Mutant Phenotype more info	PubMed
is_active_in Schaffer collateral - CA1 synapse	ISO Inferred from Sequence Orthology more info
located_in asymmetric synapse	IDA Inferred from Direct Assay more info	PubMed
located_in axon	IDA Inferred from Direct Assay more info	PubMed
located_in cell surface	IDA Inferred from Direct Assay more info	PubMed
located_in dendrite	IDA Inferred from Direct Assay more info	PubMed
located_in dendrite	ISO Inferred from Sequence Orthology more info
located_in dendrite cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in dendrite membrane	IDA Inferred from Direct Assay more info	PubMed
located_in dendritic shaft	IDA Inferred from Direct Assay more info	PubMed
is_active_in dendritic spine	IBA Inferred from Biological aspect of Ancestor more info
located_in dendritic spine	IDA Inferred from Direct Assay more info	PubMed
located_in dendritic spine head	IDA Inferred from Direct Assay more info	PubMed
located_in dendritic spine neck	IDA Inferred from Direct Assay more info	PubMed
located_in endoplasmic reticulum	ISO Inferred from Sequence Orthology more info
is_active_in glutamatergic synapse	IDA Inferred from Direct Assay more info	PubMed
is_active_in glutamatergic synapse	ISO Inferred from Sequence Orthology more info
located_in growth cone	IDA Inferred from Direct Assay more info	PubMed
part_of ionotropic glutamate receptor complex	TAS Traceable Author Statement more info	PubMed
located_in membrane	ISO Inferred from Sequence Orthology more info
located_in neuron projection	ISO Inferred from Sequence Orthology more info
located_in neuronal cell body	IDA Inferred from Direct Assay more info	PubMed
located_in perikaryon	IDA Inferred from Direct Assay more info	PubMed
located_in perisynaptic space	ISO Inferred from Sequence Orthology more info
is_active_in plasma membrane	IBA Inferred from Biological aspect of Ancestor more info
located_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	ISO Inferred from Sequence Orthology more info
located_in plasma membrane	TAS Traceable Author Statement more info
located_in postsynaptic density	IDA Inferred from Direct Assay more info	PubMed
located_in postsynaptic density	ISO Inferred from Sequence Orthology more info
is_active_in postsynaptic density membrane	IBA Inferred from Biological aspect of Ancestor more info
is_active_in postsynaptic density membrane	IDA Inferred from Direct Assay more info	PubMed
located_in postsynaptic density membrane	IEA Inferred from Electronic Annotation more info
is_active_in postsynaptic density membrane	ISO Inferred from Sequence Orthology more info
located_in postsynaptic density membrane	ISO Inferred from Sequence Orthology more info
is_active_in postsynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
located_in postsynaptic membrane	ISO Inferred from Sequence Orthology more info
located_in presynapse	IDA Inferred from Direct Assay more info	PubMed
is_active_in presynaptic active zone membrane	IDA Inferred from Direct Assay more info	PubMed
is_active_in presynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
located_in presynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
part_of protein-containing complex	IDA Inferred from Direct Assay more info	PubMed
part_of protein-containing complex	IPI Inferred from Physical Interaction more info	PubMed
located_in somatodendritic compartment	ISO Inferred from Sequence Orthology more info
located_in spine synapse	IDA Inferred from Direct Assay more info	PubMed
located_in synapse	IDA Inferred from Direct Assay more info	PubMed
located_in synapse	ISO Inferred from Sequence Orthology more info
located_in synaptic membrane	ISO Inferred from Sequence Orthology more info
located_in synaptic vesicle	ISO Inferred from Sequence Orthology more info
located_in synaptic vesicle membrane	IDA Inferred from Direct Assay more info	PubMed
located_in synaptic vesicle membrane	ISO Inferred from Sequence Orthology more info
located_in terminal bouton	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: glutamate receptor 2

Names: AMPA-selective glutamate receptor 2; glutamate receptor B; glutamate receptor, ionotropic, AMPA 2

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_001083811.1 → NP_001077280.1 glutamate receptor 2 isoform 2 precursor

See identical proteins and their annotated locations for NP_001077280.1

Status: REVIEWED

Description

Transcript Variant: This variant (2) uses an alternate exon in the 3' coding region compared to transcript variant 1, and encodes an isoform (2, also known as the flop isoform) that is the same length as isoform 1, but with few amino acid differences. RNA editing changes Gln607Arg (CAG->CGG) and Arg764Gly (AGA->GGA).

Source sequence(s)

AF164344, CO400088, JAXUCZ010000002, M38061, M85035

UniProtKB/Swiss-Prot

P19491, Q9R174

Related

ENSRNOP00000069094.2, ENSRNOT00000077941.3

Conserved Domains (4) summary

cd06389
Location:28 → 397

PBP1_iGluR_AMPA_GluR2; N-terminal leucine/isoleucine/valine-binding protein (LIVBP)-like domain of the GluR2 subunit of the AMPA receptor

cd13715
Location:413 → 794

PBP2_iGluR_AMPA; The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtypes of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily

pfam00060
Location:545 → 824

Lig_chan; Ligand-gated ion channel

pfam01094
Location:56 → 379

ANF_receptor; Receptor family ligand binding region
NM_017261.2 → NP_058957.1 glutamate receptor 2 isoform 1 precursor

See identical proteins and their annotated locations for NP_058957.1

Status: REVIEWED

Description

Transcript Variant: This variant (1) encodes isoform 1 (also known as the flip isoform). RNA editing changes Gln607Arg (CAG->CGG) and Arg764Gly (AGA->GGA).

Source sequence(s)

AF164344, CO400088, JAXUCZ010000002, M38061

UniProtKB/TrEMBL

A6J5S9, G3V914

Related

ENSRNOP00000072906.2, ENSRNOT00000083361.3

Conserved Domains (4) summary

cd06389
Location:28 → 397

PBP1_iGluR_AMPA_GluR2; N-terminal leucine/isoleucine/valine-binding protein (LIVBP)-like domain of the GluR2 subunit of the AMPA receptor

cd13715
Location:413 → 794

PBP2_iGluR_AMPA; The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtypes of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily

pfam00060
Location:545 → 824

Lig_chan; Ligand-gated ion channel

pfam01094
Location:56 → 379

ANF_receptor; Receptor family ligand binding region