GRIA1

Glutamate receptor, ionotropic, AMPA 1
Identifiers
Symbols	GRIA1 ; GLUH1; GLUR1; GLURA; GluA1; HBGR1
External IDs	OMIM: 138248 MGI: 95808 HomoloGene: 20226 IUPHAR: 444 ChEMBL: 2009 GeneCards: GRIA1 Gene
Gene ontology Molecular function • AMPA glutamate receptor activity • extracellular-glutamate-gated ion channel activity • protein binding • glutamate receptor activity • PDZ domain binding Cellular component • endoplasmic reticulum membrane • plasma membrane • synaptic vesicle • cell surface • postsynaptic density • cell junction • dendrite • endocytic vesicle membrane • AMPA glutamate receptor complex • dendritic spine membrane • neuronal cell body • dendritic spine • axonal spine • neuron spine • postsynaptic membrane • recycling endosome Biological process • signal transduction • synaptic transmission • long-term memory • receptor internalization • ion transmembrane transport • ionotropic glutamate receptor signaling pathway • synaptic transmission, glutamatergic • long term synaptic depression Sources: Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	2890	14799
Ensembl	ENSG00000155511	ENSMUSG00000020524
UniProt	P42261	P23818
RefSeq (mRNA)	NM_000827	NM_001113325
RefSeq (protein)	NP_000818	NP_001106796
Location (UCSC)	Chr 5: 153.49 – 153.81 Mb	Chr 11: 57.01 – 57.33 Mb
PubMed search

Glutamate receptor 1 is a protein that in humans is encoded by the GRIA1 gene.^[1][2]

Function

Glutamate receptors are the predominant excitatory neurotransmitter receptors in the mammalian brain and are activated in a variety of normal neurophysiologic processes. These receptors are heteromeric protein complexes with multiple subunits, each possessing transmembrane regions, and all arranged to form a ligand-gated ion channel. The classification of glutamate receptors is based on their activation by different pharmacologic agonists. The GRIA1 belongs to a family of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA) receptors. Each of the members (GRIA1-4) include flip and flop isoforms generated by alternative RNA splicing. The receptor subunits encoded by each isoform vary in their signal transduction properties. The isoform presented here is the flop isoform. In situ hybridization experiments showed that human GRIA1 mRNA is present in granule and pyramidal cells in the hippocampal formation.^[3]

Interactions

GRIA1 has been shown to interact with:

• DLG1^[4][5][6]
• EPB41L2,^[7] and
• GRID2.^[8]

See also

• AMPA receptor

References

1. Puckett C, Gomez CM, Korenberg JR, Tung H, Meier TJ, Chen XN, Hood L (October 1991). "Molecular cloning and chromosomal localization of one of the human glutamate receptor genes". Proc Natl Acad Sci U S A 88 (17): 7557–61. doi:10.1073/pnas.88.17.7557. PMC 52340. PMID 1652753.
2. McNamara JO, Eubanks JH, McPherson JD, Wasmuth JJ, Evans GA, Heinemann SF (July 1992). "Chromosomal localization of human glutamate receptor genes". J Neurosci 12 (7): 2555–62. PMID 1319477.
3. "Entrez Gene: GRIA1 glutamate receptor, ionotropic, AMPA 1".
4. Gardoni F, Mauceri D, Fiorentini C, Bellone C, Missale C, Cattabeni F, Di Luca M (November 2003). "CaMKII-dependent phosphorylation regulates SAP97/NR2A interaction". J. Biol. Chem. 278 (45): 44745–52. doi:10.1074/jbc.M303576200. PMID 12933808.
5. Leonard AS, Davare MA, Horne MC, Garner CC, Hell JW (July 1998). "SAP97 is associated with the alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor GluR1 subunit". J. Biol. Chem. 273 (31): 19518–24. doi:10.1074/jbc.273.31.19518. PMID 9677374.
6. Sans N, Racca C, Petralia RS, Wang YX, McCallum J, Wenthold RJ (October 2001). "Synapse-associated protein 97 selectively associates with a subset of AMPA receptors early in their biosynthetic pathway". J. Neurosci. 21 (19): 7506–16. PMID 11567040.
7. Shen L, Liang F, Walensky LD, Huganir RL (November 2000). "Regulation of AMPA receptor GluR1 subunit surface expression by a 4. 1N-linked actin cytoskeletal association". J. Neurosci. 20 (21): 7932–40. PMID 11050113.
8. Kohda K, Kamiya Y, Matsuda S, Kato K, Umemori H, Yuzaki M (January 2003). "Heteromer formation of delta2 glutamate receptors with AMPA or kainate receptors". Brain Res. Mol. Brain Res. 110 (1): 27–37. doi:10.1016/s0169-328x(02)00561-2. PMID 12573530.

Further reading

• Sun W, Ferrer-Montiel AV, Schinder AF, McPherson JP, Evans GA, Montal M (1992). "Molecular cloning, chromosomal mapping, and functional expression of human brain glutamate receptors.". Proc. Natl. Acad. Sci. U.S.A. 89 (4): 1443–7. doi:10.1073/pnas.89.4.1443. PMC 48467. PMID 1311100.
• Potier MC, Spillantini MG, Carter NP (1992). "The human glutamate receptor cDNA GluR1: cloning, sequencing, expression and localization to chromosome 5.". DNA Seq. 2 (4): 211–8. doi:10.3109/10425179209020805. PMID 1320959.
• Yakel JL, Vissavajjhala P, Derkach VA, Brickey DA, Soderling TR (1995). "Identification of a Ca2+/calmodulin-dependent protein kinase II regulatory phosphorylation site in non-N-methyl-D-aspartate glutamate receptors.". Proc. Natl. Acad. Sci. U.S.A. 92 (5): 1376–80. doi:10.1073/pnas.92.5.1376. PMC 42522. PMID 7877986.
• Eastwood SL, Burnet PW, Beckwith J, Kerwin RW, Harrison PJ (1994). "AMPA glutamate receptors and their flip and flop mRNAs in human hippocampus.". NeuroReport 5 (11): 1325–8. doi:10.1097/00001756-199406270-00007. PMID 7919190.
• Roche KW, Raymond LA, Blackstone C, Huganir RL (1994). "Transmembrane topology of the glutamate receptor subunit GluR6.". J. Biol. Chem. 269 (16): 11679–82. PMID 8163463.
• McLaughlin DP, Cheetham ME, Kerwin RW (1993). "Expression of alternatively-spliced glutamate receptors in human hippocampus.". Eur. J. Pharmacol. 244 (1): 89–92. doi:10.1016/0922-4106(93)90062-E. PMID 8420792.
• Roche KW, O'Brien RJ, Mammen AL, Bernhardt J, Huganir RL (1996). "Characterization of multiple phosphorylation sites on the AMPA receptor GluR1 subunit.". Neuron 16 (6): 1179–88. doi:10.1016/S0896-6273(00)80144-0. PMID 8663994.
• Brakeman PR, Lanahan AA, O'Brien R, Roche K, Barnes CA, Huganir RL, Worley PF (1997). "Homer: a protein that selectively binds metabotropic glutamate receptors.". Nature 386 (6622): 284–8. doi:10.1038/386284a0. PMID 9069287.
• Barria A, Derkach V, Soderling T (1998). "Identification of the Ca2+/calmodulin-dependent protein kinase II regulatory phosphorylation site in the alpha-amino-3-hydroxyl-5-methyl-4-isoxazole-propionate-type glutamate receptor.". J. Biol. Chem. 272 (52): 32727–30. doi:10.1074/jbc.272.52.32727. PMID 9407043.
• Ripellino JA, Neve RL, Howe JR (1998). "Expression and heteromeric interactions of non-N-methyl-D-aspartate glutamate receptor subunits in the developing and adult cerebellum.". Neuroscience 82 (2): 485–97. doi:10.1016/S0306-4522(97)00296-0. PMID 9466455.
• Leonard AS, Davare MA, Horne MC, Garner CC, Hell JW (1998). "SAP97 is associated with the alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor GluR1 subunit.". J. Biol. Chem. 273 (31): 19518–24. doi:10.1074/jbc.273.31.19518. PMID 9677374.
• Xiao B, Tu JC, Petralia RS, Yuan JP, Doan A, Breder CD, Ruggiero A, Lanahan AA, Wenthold RJ, Worley PF (1998). "Homer regulates the association of group 1 metabotropic glutamate receptors with multivalent complexes of homer-related, synaptic proteins.". Neuron 21 (4): 707–16. doi:10.1016/S0896-6273(00)80588-7. PMID 9808458.
• Montague AA, Greer CA (1999). "Differential distribution of ionotropic glutamate receptor subunits in the rat olfactory bulb.". J. Comp. Neurol. 405 (2): 233–46. doi:10.1002/(SICI)1096-9861(19990308)405:2<233::AID-CNE7>3.0.CO;2-A. PMID 10023812.
• Leuschner WD, Hoch W (1999). "Subtype-specific assembly of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor subunits is mediated by their n-terminal domains.". J. Biol. Chem. 274 (24): 16907–16. doi:10.1074/jbc.274.24.16907. PMID 10358037.
• Shi SH, Hayashi Y, Petralia RS, Zaman SH, Wenthold RJ, Svoboda K, Malinow R (1999). "Rapid spine delivery and redistribution of AMPA receptors after synaptic NMDA receptor activation.". Science 284 (5421): 1811–6. doi:10.1126/science.284.5421.1811. PMID 10364548.
• Rubio ME, Wenthold RJ (1999). "Calnexin and the immunoglobulin binding protein (BiP) coimmunoprecipitate with AMPA receptors.". J. Neurochem. 73 (3): 942–8. doi:10.1046/j.1471-4159.1999.0730942.x. PMID 10461883.
• Stinehelfer S, Vruwink M, Burette A (2000). "Immunolocalization of mGluR1alpha in specific populations of local circuit neurons in the cerebral cortex.". Brain Res. 861 (1): 37–44. doi:10.1016/S0006-8993(00)01952-1. PMID 10751563.

External links

• GRIA1 protein, human at the US National Library of Medicine Medical Subject Headings (MeSH)

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