Summary

Name GRIN2B
Full Name Glutamate receptor ionotropic, NMDA 2B
Synonyms GluN2B, Glutamate [NMDA] receptor subunit epsilon-2, N-methyl D-aspartate receptor subtype 2B, NMDAR2B, NR2B, N-methyl-D-aspartate receptor subunit 3, NR3, hNR3 | NMDAR2B
Primary ID Q13224
Links - -
Type protein
Relations 30
Function Component of NMDA receptor complexes that function as heterotetrameric, ligand-gated ion channels with high calcium permeability and voltage-dependent sensitivity to magnesium. Channel activation requires binding of the neurotransmitter glutamate to the epsilon subunit, glycine binding to the zeta subunit, plus membrane depolarization to eliminate channel inhibition by Mg(2+) (PubMed:8768735, PubMed:26919761, PubMed:26875626, PubMed:28126851). Sensitivity to glutamate and channel kinetics depend on the subunit composition (PubMed:8768735, PubMed:26875626). 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. Contributes to neural pattern formation in the developing brain. Plays a role in long-term depression (LTD) of hippocampus membrane currents and in synaptic plasticity (By similarity).

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.391
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.482
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.408
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.371
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.589
Publications: 1
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.687
Publications: 1
+ down-regulates img/direct_inhibition.png phosphorylation GRIN2B 0.329
Publications: 1 Organism: Homo Sapiens
+ img/unknown.png phosphorylation GRIN2B 0.76
Publications: 8 Organism: In Vitro, Homo Sapiens,
+ down-regulates activity img/direct_inhibition.png dephosphorylation GRIN2B 0.564
Publications: 2 Organism: Mus Musculus, Homo Sapiens
+ up-regulates activity img/direct-activation.png dephosphorylation GRIN2B 0.28
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png dephosphorylation GRIN2B 0.481
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.577
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation GRIN2B 0.76
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png dephosphorylation GRIN2B 0.301
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding NMDA receptor_2B 0.716
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization GRIN2B 0.817
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by repression img/direct_inhibition.png transcriptional regulation GRIN2B 0.358
Publications: 1 Organism: Rattus Norvegicus
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation GRIN2B 0.325
Publications: 1 Organism: Homo Sapiens
Tissue: Brain