NameGlutamate receptor ionotropic, NMDA 2B
Synonyms
  • GluN2B
  • Glutamate [NMDA] receptor subunit epsilon-2
  • hNR3
  • N-methyl D-aspartate receptor subtype 2B
  • N-methyl-D-aspartate receptor subunit 3
  • NMDAR2B
  • NR2B
  • NR3
Gene NameGRIN2B
OrganismHuman
Amino acid sequence
>lcl|BSEQ0010288|Glutamate receptor ionotropic, NMDA 2B
MKPRAECCSPKFWLVLAVLAVSGSRARSQKSPPSIGIAVILVGTSDEVAIKDAHEKDDFH
HLSVVPRVELVAMNETDPKSIITRICDLMSDRKIQGVVFADDTDQEAIAQILDFISAQTL
TPILGIHGGSSMIMADKDESSMFFQFGPSIEQQASVMLNIMEEYDWYIFSIVTTYFPGYQ
DFVNKIRSTIENSFVGWELEEVLLLDMSLDDGDSKIQNQLKKLQSPIILLYCTKEEATYI
FEVANSVGLTGYGYTWIVPSLVAGDTDTVPAEFPTGLISVSYDEWDYGLPARVRDGIAII
TTAASDMLSEHSFIPEPKSSCYNTHEKRIYQSNMLNRYLINVTFEGRNLSFSEDGYQMHP
KLVIILLNKERKWERVGKWKDKSLQMKYYVWPRMCPETEEQEDDHLSIVTLEEAPFVIVE
SVDPLSGTCMRNTVPCQKRIVTENKTDEEPGYIKKCCKGFCIDILKKISKSVKFTYDLYL
VTNGKHGKKINGTWNGMIGEVVMKRAYMAVGSLTINEERSEVVDFSVPFIETGISVMVSR
SNGTVSPSAFLEPFSADVWVMMFVMLLIVSAVAVFVFEYFSPVGYNRCLADGREPGGPSF
TIGKAIWLLWGLVFNNSVPVQNPKGTTSKIMVSVWAFFAVIFLASYTANLAAFMIQEEYV
DQVSGLSDKKFQRPNDFSPPFRFGTVPNGSTERNIRNNYAEMHAYMGKFNQRGVDDALLS
LKTGKLDAFIYDAAVLNYMAGRDEGCKLVTIGSGKVFASTGYGIAIQKDSGWKRQVDLAI
LQLFGDGEMEELEALWLTGICHNEKNEVMSSQLDIDNMAGVFYMLGAAMALSLITFICEH
LFYWQFRHCFMGVCSGKPGMVFSISRGIYSCIHGVAIEERQSVMNSPTATMNNTHSNILR
LLRTAKNMANLSGVNGSPQSALDFIRRESSVYDISEHRRSFTHSDCKSYNNPPCEENLFS
DYISEVERTFGNLQLKDSNVYQDHYHHHHRPHSIGSASSIDGLYDCDNPPFTTQSRSISK
KPLDIGLPSSKHSQLSDLYGKFSFKSDRYSGHDDLIRSDVSDISTHTVTYGNIEGNAAKR
RKQQYKDSLKKRPASAKSRREFDEIELAYRRRPPRSPDHKRYFRDKEGLRDFYLDQFRTK
ENSPHWEHVDLTDIYKERSDDFKRDSVSGGGPCTNRSHIKHGTGDKHGVVSGVPAPWEKN
LTNVEWEDRSGGNFCRSCPSKLHNYSTTVTGQNSGRQACIRCEACKKAGNLYDISEDNSL
QELDQPAAPVAVTSNASTTKYPQSPTNSKAQKKNRNKLRRQHSYDTFVDLQKEEAALAPR
SVSLKDKGRFMDGSPYAHMFEMSAGESTFANNKSSVPTAGHHHHNNPGGGYMLSKSLYPD
RVTQNPFIPTFGDDQCLLHGSKSYFFRQPTVAGASKARPDFRALVTNKPVVSALHGAVPA
RFQKDICIGNQSNPCVPNNKNPRAFNGSSNGHVYEKLSSIESDV
Number of residues1484
Molecular Weight166365.885
Theoretical pI6.92
GO Classification
Functions
  • glycine binding
  • extracellular-glutamate-gated ion channel activity
  • zinc ion binding
  • calcium channel activity
  • NMDA glutamate receptor activity
Processes
  • learning
  • long-term synaptic potentiation
  • regulation of protein kinase A signaling
  • memory
  • in utero embryonic development
  • sensory organ development
  • response to ethanol
  • axon guidance
  • startle response
  • epidermal growth factor receptor signaling pathway
  • suckling behavior
  • excitatory postsynaptic potential
  • innate immune response
  • ephrin receptor signaling pathway
  • Fc-epsilon receptor signaling pathway
  • transport
  • behavioral response to pain
  • activation of MAPKK activity
  • glutamate receptor signaling pathway
  • fibroblast growth factor receptor signaling pathway
  • behavioral fear response
  • insulin receptor signaling pathway
  • MAPK cascade
  • neurotrophin TRK receptor signaling pathway
  • small GTPase mediated signal transduction
  • detection of mechanical stimulus involved in sensory perception of pain
  • Ras protein signal transduction
  • synaptic transmission
  • ionotropic glutamate receptor signaling pathway
  • vascular endothelial growth factor receptor signaling pathway
  • learning or memory
Components
  • synaptic vesicle
  • neuronal postsynaptic density
  • cell junction
  • integral component of plasma membrane
  • postsynaptic membrane
  • plasma membrane
  • NMDA selective glutamate receptor complex
  • neuron projection
  • cell surface
General FunctionZinc ion binding
Specific FunctionNMDA receptor subtype of glutamate-gated ion channels with high calcium permeability and voltage-dependent sensitivity to magnesium. Mediated by glycine. In concert with DAPK1 at extrasynaptic sites, acts as a central mediator for stroke damage. Its phosphorylation at Ser-1303 by DAPK1 enhances synaptic NMDA receptor channel activity inducing injurious Ca2+ influx through them, resulting in an irreversible neuronal death (By similarity).
Pfam Domain Function
Transmembrane Regions558-578 635-655 818-838
GenBank Protein ID1899202
UniProtKB IDQ13224
UniProtKB Entry NameNMDE2_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0010289|Glutamate receptor ionotropic, NMDA 2B (GRIN2B)
ATGAAGCCCAGAGCGGAGTGCTGTTCTCCCAAGTTCTGGTTGGTGTTGGCCGTCCTGGCC
GTGTCAGGCAGCAGAGCTCGTTCTCAGAAGAGCCCCCCCAGCATTGGCATTGCTGTCATC
CTCGTGGGCACTTCCGACGAGGTGGCCATCAAGGATGCCCACGAGAAAGATGATTTCCAC
CATCTCTCCGTGGTACCCCGGGTGGAACTGGTAGCCATGAATGAGACCGACCCAAAGAGC
ATCATCACCCGCATCTGTGATCTCATGTCTGACCGGAAGATCCAGGGGGTGGTGTTTGCT
GATGACACAGACCAGGAAGCCATCGCCCAGATCCTCGATTTCATTTCAGCACAGACTCTC
ACCCCCATCCTGGGCATCCACGGGGGCTCCTCTATGATAATGGCAGATAAGGATGAATCC
TCCATGTTCTTCCAGTTTGGCCCATCAATTGAACAGCAAGCTTCCGTAATGCTCAACATC
ATGGAAGAATATGACTGGTACATCTTTTCTATCGTCACCACCTATTTCCCTGGCTACCAG
GACTTTGTAAACAAGATCCGCAGCACCATTGAGAATAGCTTTGTGGGCTGGGAGCTAGAG
GAGGTCCTCCTACTGGACATGTCCCTGGACGATGGAGATTCTAAGATCCAGAATCAGCTC
AAGAAACTTCAAAGCCCCATCATTCTTCTTTACTGTACCAAGGAAGAAGCCACCTACATC
TTTGAAGTGGCCAACTCAGTAGGGCTGACTGGCTATGGCTACACGTGGATCGTGCCCAGT
CTGGTGGCAGGGGATACAGACACAGTGCCTGCGGAGTTCCCCACTGGGCTCATCTCTGTA
TCATATGATGAATGGGACTATGGCCTCCCCGCCAGAGTGAGAGATGGAATTGCCATAATC
ACCACTGCTGCTTCTGACATGCTGTCTGAGCACAGCTTCATCCCTGAGCCCAAAAGCAGT
TGTTACAACACCCACGAGAAGAGAATCTACCAGTCCAATATGCTAAATAGGTATCTGATC
AATGTCACTTTTGAGGGGAGGAATTTGTCCTTCAGTGAAGATGGCTACCAGATGCACCCG
AAACTGGTGATAATTCTTCTGAACAAGGAGAGGAAGTGGGAAAGGGTGGGGAAGTGGAAA
GACAAGTCCCTGCAGATGAAGTACTATGTGTGGCCCCGAATGTGTCCAGAGACTGAAGAG
CAGGAGGATGACCATCTGAGCATTGTGACCCTGGAGGAGGCACCATTTGTCATTGTGGAA
AGTGTGGACCCTCTGAGTGGAACCTGCATGAGGAACACAGTCCCCTGCCAAAAACGCATA
GTCACTGAGAATAAAACAGACGAGGAGCCGGGTTACATCAAAAAATGCTGCAAGGGGTTC
TGTATTGACATCCTTAAGAAAATTTCTAAATCTGTGAAGTTCACCTATGACCTTTACCTG
GTTACCAATGGCAAGCATGGGAAGAAAATCAATGGAACCTGGAATGGTATGATTGGAGAG
GTGGTCATGAAGAGGGCCTACATGGCAGTGGGCTCACTCACCATCAATGAGGAACGATCG
GAGGTGGTCGACTTCTCTGTGCCCTTCATAGAGACAGGCATCAGTGTCATGGTGTCACGC
AGCAATGGGACTGTCTCACCTTCTGCCTTCTTAGAGCCATTCAGCGCTGACGTATGGGTG
ATGATGTTTGTGATGCTGCTCATCGTCTCAGCCGTGGCTGTCTTTGTCTTTGAGTACTTC
AGCCCTGTGGGTTATAACAGGTGCCTCGCTGATGGCAGAGAGCCTGGTGGACCCTCTTTC
ACCATCGGCAAAGCTATTTGGTTGCTCTGGGGTCTGGTGTTTAACAACTCCGTACCTGTG
CAGAACCCAAAGGGGACCACCTCCAAGATCATGGTGTCAGTGTGGGCCTTCTTTGCTGTC
ATCTTCCTGGCCAGCTACACTGCCAACTTAGCTGCCTTCATGATCCAAGAGGAATATGTG
GACCAGGTTTCTGGCCTGAGCGACAAAAAGTTCCAGAGACCTAATGACTTCTCACCCCCT
TTCCGCTTTGGGACCGTGCCCAACGGCAGCACAGAGAGAAATATTCGCAATAACTATGCA
GAAATGCATGCCTACATGGGAAAGTTCAACCAGAGGGGTGTAGATGATGCATTGCTCTCC
CTGAAAACAGGGAAACTGGATGCCTTCATCTATGATGCAGCAGTGCTGAACTATATGGCA
GGCAGAGATGAAGGCTGCAAGCTGGTGACCATTGGCAGTGGGAAGGTCTTTGCTTCCACT
GGCTATGGCATTGCCATCCAAAAAGATTCTGGGTGGAAGCGCCAGGTGGACCTTGCTATC
CTGCAGCTCTTTGGAGATGGGGAGATGGAAGAACTGGAAGCTCTCTGGCTCACTGGCATT
TGTCACAATGAGAAGAATGAGGTCATGAGCAGCCAGCTGGACATTGACAACATGGCAGGG
GTCTTCTACATGTTGGGGGCGGCCATGGCTCTCAGCCTCATCACCTTCATCTGCGAACAC
CTTTTCTATTGGCAGTTCCGACATTGCTTTATGGGTGTCTGTTCTGGCAAGCCTGGCATG
GTCTTCTCCATCAGCAGAGGTATCTACAGCTGCATCCATGGGGTGGCGATCGAGGAGCGC
CAGTCTGTAATGAACTCCCCCACCGCAACCATGAACAACACACACTCCAACATCCTGCGC
CTGCTGCGCACGGCCAAGAACATGGCTAACCTGTCTGGTGTGAATGGCTCACCGCAGAGC
GCCCTGGACTTCATCCGACGGGAGTCATCCGTCTATGACATCTCAGAGCACCGCCGCAGC
TTCACGCATTCTGACTGCAAATCCTACAACAACCCGCCCTGTGAGGAGAACCTCTTCAGT
GACTACATCAGTGAGGTAGAGAGAACGTTCGGGAACCTGCAGCTGAAGGACAGCAACGTG
TACCAAGATCACTACCACCATCACCACCGGCCCCATAGTATTGGCAGTGCCAGCTCCATC
GATGGGCTCTACGACTGTGACAACCCACCCTTCACCACCCAGTCCAGGTCCATCAGCAAG
AAGCCCCTGGACATCGGCCTCCCCTCCTCCAAGCACAGCCAGCTCAGTGACCTGTACGGC
AAATTCTCCTTCAAGAGCGACCGCTACAGTGGCCACGACGACTTGATCCGCTCCGATGTC
TCTGACATCTCAACCCACACCGTCACCTATGGGAACATCGAGGGCAATGCCGCCAAGAGG
CGTAAGCAGCAATATAAGGACAGCCTGAAGAAGCGGCCTGCCTCGGCCAAGTCCCGCAGG
GAGTTTGACGAGATCGAGCTGGCCTACCGTCGCCGACCGCCCCGCTCCCCTGACCACAAG
CGCTACTTCAGGGACAAGGAAGGGCTACGGGACTTCTACCTGGACCAGTTCCGAACAAAG
GAGAACTCACCCCACTGGGAGCACGTAGACCTGACCGACATCTACAAGGAGCGGAGTGAT
GACTTTAAGCGCGACTCCGTCAGCGGAGGAGGGCCCTGTACCAACAGGTCTCACATCAAG
CACGGGACGGGCGACAAACACGGCGTGGTCAGCGGGGTACCTGCACCTTGGGAGAAGAAC
CTGACCAACGTGGAGTGGGAGGACCGGTCCGGGGGCAACTTCTGCCGCAGCTGTCCCTCC
AAGCTGCACAACTACTCCACGACGGTGACGGGTCAGAACTCGGGCAGGCAGGCGTGCATC
CGGTGTGAGGCTTGCAAGAAAGCAGGCAACCTGTATGACATCAGTGAGGACAACTCCCTG
CAGGAACTGGACCAGCCGGCTGCCCCAGTGGCGGTGACGTCAAACGCCTCCACCACTAAG
TACCCTCAGAGCCCGACTAATTCCAAGGCCCAGAAGAAGAACCGGAACAAACTGCGCCGG
CAGCACTCCTACGACACCTTCGTGGACCTGCAGAAGGAAGAAGCCGCCCTGGCCCCGCGC
AGCGTAAGCCTGAAAGACAAGGGCCGATTCATGGATGGGAGCCCCTACGCCCACATGTTT
GAGATGTCAGCTGGCGAGAGCACCTTTGCCAACAACAAGTCCTCAGTGCCCACTGCCGGA
CATCACCACCACAACAACCCCGGCGGCGGGTACATGCTCAGCAAGTCGCTCTACCCTGAC
CGGGTCACGCAAAACCCTTTCATCCCCACTTTTGGGGACGACCAGTGCTTGCTCCATGGC
AGCAAATCCTACTTCTTCAGGCAGCCCACGGTGGCGGGGGCGTCGAAAGCCAGGCCGGAC
TTCCGGGCCCTTGTCACCAACAAGCCGGTGGTCTCGGCCCTTCATGGGGCCGTGCCAGCC
CGTTTCCAGAAGGACATCTGTATAGGGAACCAGTCCAACCCCTGTGTGCCTAACAACAAA
AACCCCAGGGCTTTCAATGGCTCCAGCAATGGGCATGTTTATGAGAAACTTTCTAGTATT
GAGTCTGATGTCTGA
GenBank Gene IDU90278
GeneCard IDNot Available
GenAtlas IDGRIN2B
HGNC IDHGNC:4586
Chromosome Location12
Locus12p12
References
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  2. Hess SD, Daggett LP, Crona J, Deal C, Lu CC, Urrutia A, Chavez-Noriega L, Ellis SB, Johnson EC, Velicelebi G: Cloning and functional characterization of human heteromeric N-methyl-D-aspartate receptors. J Pharmacol Exp Ther. 1996 Aug;278(2):808-16. 8768735
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  4. Mandich P, Schito AM, Bellone E, Antonacci R, Finelli P, Rocchi M, Ajmar F: Mapping of the human NMDAR2B receptor subunit gene (GRIN2B) to chromosome 12p12. Genomics. 1994 Jul 1;22(1):216-8. 7959773
  5. Schito AM, Pizzuti A, Di Maria E, Schenone A, Ratti A, Defferrari R, Bellone E, Mancardi GL, Ajmar F, Mandich P: mRNA distribution in adult human brain of GRIN2B, a N-methyl-D-aspartate (NMDA) receptor subunit. Neurosci Lett. 1997 Dec 12;239(1):49-53. 9547169
  6. Wu Y, Dowbenko D, Spencer S, Laura R, Lee J, Gu Q, Lasky LA: Interaction of the tumor suppressor PTEN/MMAC with a PDZ domain of MAGI3, a novel membrane-associated guanylate kinase. J Biol Chem. 2000 Jul 14;275(28):21477-85. 10748157
  7. Endele S, Rosenberger G, Geider K, Popp B, Tamer C, Stefanova I, Milh M, Kortum F, Fritsch A, Pientka FK, Hellenbroich Y, Kalscheuer VM, Kohlhase J, Moog U, Rappold G, Rauch A, Ropers HH, von Spiczak S, Tonnies H, Villeneuve N, Villard L, Zabel B, Zenker M, Laube B, Reis A, Wieczorek D, Van Maldergem L, Kutsche K: Mutations in GRIN2A and GRIN2B encoding regulatory subunits of NMDA receptors cause variable neurodevelopmental phenotypes. Nat Genet. 2010 Nov;42(11):1021-6. doi: 10.1038/ng.677. Epub 2010 Oct 3. 20890276
  8. de Ligt J, Willemsen MH, van Bon BW, Kleefstra T, Yntema HG, Kroes T, Vulto-van Silfhout AT, Koolen DA, de Vries P, Gilissen C, del Rosario M, Hoischen A, Scheffer H, de Vries BB, Brunner HG, Veltman JA, Vissers LE: Diagnostic exome sequencing in persons with severe intellectual disability. N Engl J Med. 2012 Nov 15;367(20):1921-9. doi: 10.1056/NEJMoa1206524. Epub 2012 Oct 3. 23033978
  9. Lemke JR, Hendrickx R, Geider K, Laube B, Schwake M, Harvey RJ, James VM, Pepler A, Steiner I, Hortnagel K, Neidhardt J, Ruf S, Wolff M, Bartholdi D, Caraballo R, Platzer K, Suls A, De Jonghe P, Biskup S, Weckhuysen S: GRIN2B mutations in West syndrome and intellectual disability with focal epilepsy. Ann Neurol. 2014 Jan;75(1):147-54. doi: 10.1002/ana.24073. Epub 2014 Jan 2. 24272827