NR2A is an alias for the gene, Glutamate receptor, ionotropic, N-methyl D-aspartate 2A, in humans. Other names include: Glutamate receptor ionotropic, NMDA 2A; GluN2A; Glutamate [NMDA] receptor subunit epsilon-1; N-methyl D-aspartate receptor subtype 2A; NMDAR2A; hNR2A; EPND; FESD; LKS. The encoded protein has an amino acid length of 1464 and a mass of 165.3 kDa. NR2A is a member of the Glutamate-gated ion channel (TC 1.A.10.1) family, NR2A/GRIN2A subfamily. This gene shares homology with other species, including: Mouse, Rat.