NameGlutamate receptor ionotropic, kainate 2
Synonyms
  • EAA4
  • Excitatory amino acid receptor 4
  • GluK2
  • GluR-6
  • GLUR6
  • Glutamate receptor 6
Gene NameGRIK2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0001648|Glutamate receptor ionotropic, kainate 2
MKIIFPILSNPVFRRTVKLLLCLLWIGYSQGTTHVLRFGGIFEYVESGPMGAEELAFRFA
VNTINRNRTLLPNTTLTYDTQKINLYDSFEASKKACDQLSLGVAAIFGPSHSSSANAVQS
ICNALGVPHIQTRWKHQVSDNKDSFYVSLYPDFSSLSRAILDLVQFFKWKTVTVVYDDST
GLIRLQELIKAPSRYNLRLKIRQLPADTKDAKPLLKEMKRGKEFHVIFDCSHEMAAGILK
QALAMGMMTEYYHYIFTTLDLFALDVEPYRYSGVNMTGFRILNTENTQVSSIIEKWSMER
LQAPPKPDSGLLDGFMTTDAALMYDAVHVVSVAVQQFPQMTVSSLQCNRHKPWRFGTRFM
SLIKEAHWEGLTGRITFNKTNGLRTDFDLDVISLKEEGLEKIGTWDPASGLNMTESQKGK
PANITDSLSNRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTILGFTYEI
RLVEDGKYGAQDDANGQWNGMVRELIDHKADLAVAPLAITYVREKVIDFSKPFMTLGISI
LYRKPNGTNPGVFSFLNPLSPDIWMYILLAYLGVSCVLFVIARFSPYEWYNPHPCNPDSD
VVENNFTLLNSFWFGVGALMQQGSELMPKALSTRIVGGIWWFFTLIIISSYTANLAAFLT
VERMESPIDSADDLAKQTKIEYGAVEDGATMTFFKKSKISTYDKMWAFMSSRRQSVLVKS
NEEGIQRVLTSDYAFLMESTTIEFVTQRNCNLTQIGGLIDSKGYGVGTPMGSPYRDKITI
AILQLQEEGKLHMMKEKWWRGNGCPEEESKEASALGVQNIGGIFIVLAAGLVLSVFVAVG
EFLYKSKKNAQLEKRSFCSAMVEELRMSLKCQRRLKHKPQAPVIVKTEEVINMHTFNDRR
LPGKETMA
Number of residues908
Molecular Weight102582.475
Theoretical pI8.01
GO Classification
Functions
  • extracellular-glutamate-gated ion channel activity
  • kainate selective glutamate receptor activity
Processes
  • excitatory postsynaptic potential
  • regulation of long-term neuronal synaptic plasticity
  • negative regulation of synaptic transmission, glutamatergic
  • intracellular protein transport
  • modulation of synaptic transmission
  • synaptic transmission
  • glutamate receptor signaling pathway
  • inhibitory postsynaptic potential
  • ion transmembrane transport
  • regulation of short-term neuronal synaptic plasticity
  • synaptic transmission, glutamatergic
  • receptor clustering
  • cellular calcium ion homeostasis
  • behavioral fear response
  • neuronal action potential
  • ionotropic glutamate receptor signaling pathway
  • neuron apoptotic process
  • positive regulation of synaptic transmission
  • positive regulation of neuron apoptotic process
  • negative regulation of neuron apoptotic process
  • transport
  • regulation of JNK cascade
Components
  • postsynaptic membrane
  • kainate selective glutamate receptor complex
  • plasma membrane
  • cell junction
  • integral component of plasma membrane
  • dendrite
  • postsynaptic density
  • perikaryon
  • presynaptic membrane
  • dendrite cytoplasm
  • terminal bouton
General FunctionKainate selective glutamate receptor activity
Specific FunctionIonotropic glutamate receptor. 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. May be involved in the transmission of light information from the retina to the hypothalamus. Modulates cell surface expression of NETO2 (By similarity).
Pfam Domain Function
Transmembrane Regions562-582 636-656 820-840
GenBank Protein ID790532
UniProtKB IDQ13002
UniProtKB Entry NameGRIK2_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0020488|Glutamate receptor ionotropic, kainate 2 (GRIK2)
ATGAAGATTATTTTCCCGATTCTAAGTAATCCAGTCTTCAGGCGCACCGTTAAACTCCTG
CTCTGTTTACTGTGGATTGGATATTCTCAAGGAACCACACATGTATTAAGATTTGGTGGT
ATTTTTGAATATGTGGAATCTGGCCCAATGGGAGCTGAGGAACTTGCATTCAGATTTGCT
GTGAACACAATTAACAGAAACAGAACATTGCTACCCAATACTACCCTTACCTATGATACC
CAGAAGATAAACCTTTATGATAGTTTTGAAGCATCCAAGAAAGCCTGTGATCAGCTGTCT
CTTGGGGTGGCTGCCATCTTCGGGCCTTCACACAGCTCATCAGCAAACGCAGTGCAGTCC
ATCTGCAATGCTCTGGGAGTTCCCCACATACAGACCCGCTGGAAGCACCAGGTGTCAGAC
AACAAAGATTCCTTCTATGTCAGTCTCTACCCAGACTTCTCTTCACTCAGCCGTGCCATT
TTAGACCTGGTGCAGTTTTTCAAGTGGAAAACCGTCACGGTTGTGTATGATGACAGCACT
GGTCTCATTCGTTTGCAAGAGCTCATCAAAGCTCCATCAAGGTATAATCTTCGACTCAAA
ATTCGTCAGTTACCTGCTGATACAAAGGATGCAAAACCCTTACTAAAAGAAATGAAAAGA
GGCAAGGAGTTTCATGTAATCTTTGATTGTAGCCATGAAATGGCAGCAGGCATTTTAAAA
CAGGCATTAGCTATGGGAATGATGACAGAATACTATCATTATATCTTTACCACTCTGGAC
CTCTTTGCTCTTGATGTTGAGCCCTACCGATACAGTGGTGTTAACATGACAGGGTTCAGA
ATATTAAATACAGAAAATACCCAAGTCTCCTCCATCATTGAAAAGTGGTCGATGGAACGA
TTGCAGGCACCTCCGAAACCCGATTCAGGTTTGCTGGATGGATTTATGACGACTGATGCT
GCTCTAATGTATGATGCTGTGCATGTGGTGTCTGTGGCCGTTCAACAGTTTCCCCAGATG
ACAGTCAGTTCCTTGCAGTGTAATCGACATAAACCCTGGCGCTTCGGGACCCGCTTTATG
AGTCTAATTAAAGAGGCACATTGGGAAGGCCTCACAGGCAGAATAACTTTCAACAAAACC
AATGGCTTGAGAACAGATTTTGATTTGGATGTGATCAGTCTGAAGGAAGAAGGTCTAGAA
AAGATTGGAACGTGGGATCCAGCCAGTGGCCTGAATATGACAGAAAGTCAAAAGGGAAAG
CCAGCGAACATCACAGATTCCTTATCCAATCGTTCTTTGATTGTTACCACCATTTTGGAA
GAGCCTTATGTCCTTTTTAAGAAGTCTGACAAACCTCTCTATGGTAATGATCGATTTGAA
GGCTATTGCATTGATCTCCTCAGAGAGTTATCTACAATCCTTGGCTTTACATATGAAATT
AGACTTGTGGAAGATGGGAAATATGGAGCCCAGGATGATGCCAATGGACAATGGAATGGA
ATGGTTCGTGAACTAATTGATCATAAAGCTGACCTTGCAGTTGCTCCACTGGCTATTACC
TATGTTCGAGAGAAGGTCATCGACTTTTCCAAGCCCTTTATGACACTTGGAATAAGTATT
TTGTACCGCAAGCCCAATGGTACAAACCCAGGCGTCTTCTCCTTCCTGAATCCTCTCTCC
CCTGATATCTGGATGTATATTCTGCTGGCTTACTTGGGTGTCAGTTGTGTGCTCTTTGTC
ATAGCCAGGTTTAGTCCTTATGAGTGGTATAATCCACACCCTTGCAACCCTGACTCAGAC
GTGGTGGAAAACAATTTTACCTTGCTAAATAGTTTCTGGTTTGGAGTTGGAGCTCTCATG
CAGCAAGGTTCTGAGCTCATGCCCAAAGCACTGTCCACCAGGATAGTGGGAGGCATTTGG
TGGTTTTTCACACTTATCATCATTTCTTCGTATACTGCTAACTTAGCCGCCTTTCTGACA
GTGGAACGCATGGAATCCCCTATTGACTCTGCTGATGATTTAGCTAAACAAACCAAGATA
GAATATGGAGCAGTAGAGGATGGTGCAACCATGACTTTTTTCAAGAAATCAAAAATCTCC
ACGTATGACAAAATGTGGGCCTTTATGAGTAGCAGAAGGCAGTCAGTGCTGGTCAAAAGT
AATGAAGAAGGAATCCAGCGAGTCCTCACCTCTGATTATGCTTTCCTAATGGAGTCAACA
ACCATCGAGTTTGTTACCCAGCGGAACTGTAACCTGACACAGATTGGCGGCCTTATAGAC
TCTAAAGGTTATGGCGTTGGCACTCCCATGGGTTCTCCATATCGAGACAAAATTACCATA
GCAATTCTTCAGCTGCAAGAGGAAGGCAAACTGCATATGATGAAGGAGAAATGGTGGAGG
GGCAATGGTTGCCCAGAAGAGGAGAGCAAAGAGGCCAGTGCCCTGGGGGTTCAGAATATT
GGTGGCATCTTCATTGTTCTGGCAGCCGGCTTGGTGCTTTCAGTTTTTGTGGCAGTGGGA
GAATTTTTATACAAATCCAAAAAAAACGCTCAATTGGAAAAGAGAGCCAAGACTAAGTTA
CCTCAAGACTATGTATTCCTCCCTATTTTGGAGTCAGTTTCCATTTCTACAGTGTTGTCA
TCATCACCATCTTCATCATCATTATCATCATGTTCTTAA
GenBank Gene IDU16126
GeneCard IDNot Available
GenAtlas IDGRIK2
HGNC IDHGNC:4580
Chromosome Location6
Locus6q16.3-q21
References
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  2. Paschen W, Blackstone CD, Huganir RL, Ross CA: Human GluR6 kainate receptor (GRIK2): molecular cloning, expression, polymorphism, and chromosomal assignment. Genomics. 1994 Apr;20(3):435-40. 8034316
  3. Barbon A, Vallini I, Barlati S: Genomic organization of the human GRIK2 gene and evidence for multiple splicing variants. Gene. 2001 Aug 22;274(1-2):187-97. 11675011
  4. Zhawar VK, Kaur G, deRiel JK, Kaur GP, Kandpal RP, Athwal RS: Novel spliced variants of ionotropic glutamate receptor GluR6 in normal human fibroblast and brain cells are transcribed by tissue specific promoters. Gene. 2010 Jul 1;459(1-2):1-10. doi: 10.1016/j.gene.2010.03.002. Epub 2010 Mar 15. 20230879
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