GRIN2B, Official Symbol GRIN2Bprovided by HGNC Official Full Name glutamate ionotropic receptor NMDA type subunit 2Bprovided by HGNC Primary source HGNC:HGNC:4586 See related Ensembl:ENSG00000273079 MIM:138252; AllianceGenome:HGNC:4586 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as NR3; MRD6; NR2B; hNR3; DEE27; EIEE27; GluN2B; NMDAR2B Summary This gene encodes a member of the N-methyl-D-aspartate (NMDA) receptor family within the ionotropic glutamate receptor superfamily. The encoded protein is a subunit of the NMDA receptor ion channel which acts as an agonist binding site for glutamate. The NMDA receptors mediate a slow calcium-permeable component of excitatory synaptic transmission in the central nervous system. The NMDA receptors are heterotetramers of seven genetically encoded, differentially expressed subunits including NR1 (GRIN1), NR2 (GRIN2A, GRIN2B, GRIN2C, or GRIN2D) and NR3 (GRIN3A or GRIN3B). The early expression of this gene in development suggests a role in brain development, circuit formation, synaptic plasticity, and cellular migration and differentiation. Naturally occurring mutations within this gene are associated with neurodevelopmental disorders including autism spectrum disorder, attention deficit hyperactivity disorder, epilepsy, and schizophrenia. [provided by RefSeq, Aug 2017] Expression Biased expression in brain (RPKM 5.9) and testis (RPKM 0.2) See more Orthologs mouse all