Glutamate receptor 2

NameGlutamate receptor 2
Synonyms
  • AMPA-selective glutamate receptor 2
  • GluA2
  • GluR-2
  • GluR-B
  • GluR-K2
  • GLUR2
  • Glutamate receptor ionotropic, AMPA 2
Gene NameGRIA2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0001654|Glutamate receptor 2
MQKIMHISVLLSPVLWGLIFGVSSNSIQIGGLFPRGADQEYSAFRVGMVQFSTSEFRLTP
HIDNLEVANSFAVTNAFCSQFSRGVYAIFGFYDKKSVNTITSFCGTLHVSFITPSFPTDG
THPFVIQMRPDLKGALLSLIEYYQWDKFAYLYDSDRGLSTLQAVLDSAAEKKWQVTAINV
GNINNDKKDEMYRSLFQDLELKKERRVILDCERDKVNDIVDQVITIGKHVKGYHYIIANL
GFTDGDLLKIQFGGANVSGFQIVDYDDSLVSKFIERWSTLEEKEYPGAHTTTIKYTSALT
YDAVQVMTEAFRNLRKQRIEISRRGNAGDCLANPAVPWGQGVEIERALKQVQVEGLSGNI
KFDQNGKRINYTINIMELKTNGPRKIGYWSEVDKMVVTLTELPSGNDTSGLENKTVVVTT
ILESPYVMMKKNHEMLEGNERYEGYCVDLAAEIAKHCGFKYKLTIVGDGKYGARDADTKI
WNGMVGELVYGKADIAIAPLTITLVREEVIDFSKPFMSLGISIMIKKPQKSKPGVFSFLD
PLAYEIWMCIVFAYIGVSVVLFLVSRFSPYEWHTEEFEDGRETQSSESTNEFGIFNSLWF
SLGAFMQQGCDISPRSLSGRIVGGVWWFFTLIIISSYTANLAAFLTVERMVSPIESAEDL
SKQTEIAYGTLDSGSTKEFFRRSKIAVFDKMWTYMRSAEPSVFVRTTAEGVARVRKSKGK
YAYLLESTMNEYIEQRKPCDTMKVGGNLDSKGYGIATPKGSSLRNAVNLAVLKLNEQGLL
DKLKNKWWYDKGECGSGGGDSKEKTSALSLSNVAGVFYILVGGLGLAMLVALIEFCYKSR
AEAKRMKVAKNAQNINPSSSQNSQNFATYKEGYNVYGIESVKI
Number of residues883
Molecular Weight98820.32
Theoretical pI7.66
GO Classification
Functions
  • extracellular-glutamate-gated ion channel activity
  • AMPA glutamate receptor activity
  • ionotropic glutamate receptor activity
Processes
  • synaptic transmission, glutamatergic
  • ionotropic glutamate receptor signaling pathway
  • signal transduction
  • synaptic transmission
  • ion transmembrane transport
Components
  • AMPA glutamate receptor complex
  • postsynaptic membrane
  • plasma membrane
  • endoplasmic reticulum membrane
  • synaptic vesicle
  • cell junction
  • integral component of plasma membrane
  • dendrite
  • endocytic vesicle membrane
General FunctionIonotropic glutamate receptor activity
Specific FunctionReceptor for glutamate that functions as ligand-gated ion channel in the central nervous system and plays an important role in excitatory synaptic transmission. L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system. Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse. The receptor then desensitizes rapidly and enters a transient inactive state, characterized by the presence of bound agonist. In the presence of CACNG4 or CACNG7 or CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of glutamate.
Pfam Domain Function
Transmembrane Regions544-564 617-637 813-833
GenBank Protein ID493134
UniProtKB IDP42262
UniProtKB Entry NameGRIA2_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0016219|Glutamate receptor 2 (GRIA2)
ATGCAAAAGATTATGCATATTTCTGTCCTCCTTTCTCCTGTTTTATGGGGACTGATTTTT
GGTGTCTCTTCTAACAGCATACAGATAGGGGGGCTATTTCCTAGGGGCGCCGATCAAGAA
TACAGTGCATTTCGAGTAGGGATGGTTCAGTTTTCCACTTCGGAGTTCAGACTGACACCC
CACATCGACAATTTGGAGGTGGCAAACAGCTTCGCAGTCACTAATGCTTTCTGCTCCCAG
TTTTCGAGAGGAGTCTATGCTATTTTTGGATTTTATGACAAGAAGTCTGTAAATACCATC
ACATCATTTTGCGGAACACTCCACGTCTCCTTCATCACTCCCAGCTTCCCAACAGATGGC
ACACATCCATTTGTCATTCAGATGAGACCCGACCTCAAAGGAGCTCTCCTTAGCTTGATT
GAATACTATCAATGGGACAAGTTTGCATACCTCTATGACAGTGACAGAGGCTTATCAACA
CTGCAAGCTGTGCTGGATTCTGCTGCTGAAAAGAAATGGCAAGTGACTGCTATCAATGTG
GGAAACATTAACAATGACAAGAAAGATGAGATGTACCGATCACTTTTTCAAGATCTGGAG
TTAAAAAAGGAACGGCGTGTAATTCTGGACTGTGAAAGGGATAAAGTAAACGACATTGTA
GACCAGGTTATTACCATTGGAAAACATGTTAAAGGGTACCACTACATCATTGCAAATCTG
GGATTTACTGATGGAGACCTATTAAAAATCCAGTTTGGAGGTGCAAATGTCTCTGGATTT
CAGATAGTGGACTATGATGATTCGTTGGTATCTAAATTTATAGAAAGATGGTCAACACTG
GAAGAAAAAGAATACCCTGGAGCTCACACAACAACAATTAAGTATACTTCTGCTCTGACC
TATGATGCCGTTCAAGTGATGACTGAAGCCTTCCGCAACCTAAGGAAGCAAAGAATTGAA
ATCTCCCGAAGGGGGAATGCAGGAGACTGTCTGGCAAACCCAGCAGTGCCCTGGGGACAA
GGTGTAGAAATAGAAAGGGCCCTCAAACAGGTTCAGGTTGAAGGTCTCTCAGGAAATATA
AAGTTTGACCAGAATGGAAAAAGAATAAACTATACAATTAACATCATGGAGCTCAAAACT
AATGGGCCCCGGAAGATTGGCTACTGGAGTGAAGTGGACAAAATGGTTGTTACCCTTACT
GAGCTCCCTTCTGGAAATGACACCTCTGGGCTTGAGAATAAGACTGTTGTTGTCACCACA
ATTTTGGAATCTCCGTATGTTATGATGAAGAAAAATCATGAAATGCTTGAAGGCAATGAG
CGCTATGAGGGCTACTGTGTTGACCTGGCTGCAGAAATCGCCAAACATTGTGGGTTCAAG
TACAAGTTGACAATTGTTGGTGATGGCAAGTATGGGGCCAGGGATGCAGACACGAAAATT
TGGAATGGGATGGTTGGAGAACTTGTATATGGGAAAGCTGATATTGCAATTGCTCCATTA
ACTATTACCCTTGTGAGAGAAGAGGTGATTGACTTCTCAAAGCCCTTCATGAGCCTCGGG
ATATCTATCATGATCAAGAAGCCTCAGAAGTCCAAACCAGGAGTGTTTTCCTTTCTTGAT
CCTTTAGCCTATGAGATCTGGATGTGCATTGTTTTTGCCTACATTGGGGTCAGTGTAGTT
TTATTCCTGGTCAGCAGATTTAGCCCCTACGAGTGGCACACTGAGGAGTTTGAAGATGGA
AGAGAAACACAAAGTAGTGAATCAACTAATGAATTTGGGATTTTTAATAGTCTCTGGTTT
TCCTTGGGTGCCTTTATGCGGCAAGGATGCGATATTTCGCCAAGATCCCTCTCTGGGCGC
ATTGTTGGAGGTGTGTGGTGGTTCTTTACCCTGATCATAATCTCCTCCTACACGGCTAAC
TTAGCTGCCTTCCTGACTGTAGAGAGGATGGTGTCTCCCATCGAAAGTGCTGAGGATCTT
TCTAAGCAAACAGAAATTGCTTATGGAACATTAGACTCTGGCTCCACTAAAGAGTTTTTC
AGGAGATCTAAAATTGCAGTGTTTGATAAAATGTGGACCTACATGCGGAGTGCGGAGCCC
TCTGTGTTTGTGAGGACTACGGCCGAAGGGGTGGCTAGAGTGCGGAAGTCCAAAGGGAAA
TATGCCTACTTGTTGGAGTCCACGATGAACGAGTACATTGAGCAAAGGAAGCCTTGCGAC
ACCATGAAAGTTGGTGGAAACCTGGATTCCAAAGGCTATGGCATCGCAACACCTAAAGGA
TCCTCATTAAGAACCCCAGTAAATCTTGCAGTATTGAAACTCAGTGAGCAAGGCGTCTTA
GACAAGCTGAAAAACAAATGGTGGTACGATAAAGGTGAATGTGGAGCCAAGGACTCTGGA
AGTAAGGAAAAGACCAGTGCCCTCAGTCTGAGCAACGTTGCTGGAGTATTCTACATCCTT
GTCGGGGGCCTTGGTTTGGCAATGCTGGTGGCTTTGATTGAGTTCTGTTACAAGTCAAGG
GCCGAGGCGAAACGAATGAAGGTGGCAAAGAATGCACAGAATATTAACCCATCTTCCTCG
CAGAATTCACAGAATTTTGCAACTTATAAGGAAGGTTACAACGTATATGGCATCGAAAGT
GTTAAAATTTAG
GenBank Gene IDL20814
GeneCard IDNot Available
GenAtlas IDGRIA2
HGNC IDHGNC:4572
Chromosome Location4
Locus4q32-q33
References
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