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GRIN2B

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For Research Use Only. Not For Clinical Use.


Enables several functions, including beta-catenin binding activity; extracellular ligand-gated monoatomic ion channel activity; and signaling receptor binding activity. Involved in several processes, including cellular response to ketone; learning or memory; and modulation of chemical synaptic transmission. Located in several cellular components, including dendrite; postsynaptic density, intracellular component; and synaptic cleft. Part of NMDA selective glutamate receptor complex. Is active in several cellular components, including hippocampal mossy fiber to CA3 synapse; parallel fiber to Purkinje cell synapse; and synaptic membrane. Used to study attention deficit hyperactivity disorder; fetal alcohol spectrum disorder; hyperhomocysteinemia; and transient cerebral ischemia. Biomarker of several diseases, including attention deficit hyperactivity disorder; cognitive disorder (multiple); egg allergy; placental insufficiency; and sciatic neuropathy. Human ortholog(s) of this gene implicated in several diseases, including alcohol use disorder; autosomal dominant intellectual developmental disorder 6; developmental and epileptic encephalopathy 27; neurodegenerative disease (multiple); and nicotine dependence. Orthologous to human GRIN2B (glutamate ionotropic receptor NMDA type subunit 2B).
Protein class

Disease related genes, FDA approved drug targets, Human disease related genes, RAS pathway related proteins

Predicted location

Intracellular, Membrane (different isoforms)

Single cell type specificity

Group enriched (Inhibitory neurons, Excitatory neurons)

Immune cell specificity

Not detected in immune cells

Cell line specificity

Cell line enhanced (CACO-2, NTERA-2, RPTEC TERT1)

Interaction

Heterotetramer. Forms heterotetrameric channels composed of two zeta subunits (GRIN1), and two epsilon subunits (GRIN2A, GRIN2B, GRIN2C or GRIN2D) (in vitro) (PubMed:8768735, PubMed:26919761, PubMed:26875626, PubMed:28126851, PubMed:26912815). Can also form heterotetrameric channels that contain at least one zeta subunit (GRIN1), at least one epsilon subunit, plus GRIN3A or GRIN3B (By similarity). In vivo, the subunit composition may depend on the expression levels of the different subunits (Probable). Found in a complex with GRIN1 and GRIN3B. Found in a complex with GRIN1, GRIN3A and PPP2CB. Interacts with PDZ domains of PATJ, DLG3 and DLG4. Interacts with HIP1 and NETO1 (By similarity). Interacts with MAGI3 (PubMed:10748157). Interacts with DAPK1 (By similarity). Found in a complex with GRIN1 and PRR7 (PubMed:27458189). Interacts with PRR7 (PubMed:27458189). Interacts with CAMK2A (PubMed:28130356). Interacts with ARC; preventing ARC oligomerization (By similarity). Interacts with TMEM25 (By similarity).

Molecular function

Ion channel, Ligand-gated ion channel, Receptor

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