Harmonizome 3.0

glutamate receptor, ionotropic, N-methyl-D-aspartate 3A

This gene encodes a subunit of the N-methyl-D-aspartate (NMDA) receptors, which belong to the superfamily of glutamate-regulated ion channels, and function in physiological and pathological processes in the central nervous system. This subunit shows greater than 90% identity to the corresponding subunit in rat. Studies in the knockout mouse deficient in this subunit suggest that this gene may be involved in the development of synaptic elements by modulating NMDA receptor activity. [provided by RefSeq, Jul 2008]

glutamate receptor, ionotropic, N-methyl-D-aspartate 3B

The protein encoded by this gene is a subunit of an N-methyl-D-aspartate (NMDA) receptor. The encoded protein is found primarily in motor neurons, where it forms a heterotetramer with GRIN1 to create an excitatory glycine receptor. Variations in this gene have been proposed to be linked to schizophrenia. [provided by RefSeq, Nov 2015]

protein-L-isoaspartate (D-aspartate) O-methyltransferase

This gene encodes a member of the type II class of protein carboxyl methyltransferase enzymes. The encoded enzyme plays a role in protein repair by recognizing and converting D-aspartyl and L-isoaspartyl residues resulting from spontaneous deamidation back to the normal L-aspartyl form. The encoded protein may play a protective role in the pathogenesis of Alzheimer's disease, and single nucleotide polymorphisms in this gene have been associated with spina bifida and premature ovarian failure. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Oct 2011]

glutamate receptor, ionotropic, N-methyl D-aspartate 1

The protein encoded by this gene is a critical subunit of N-methyl-D-aspartate receptors, members of the glutamate receptor channel superfamily which are heteromeric protein complexes with multiple subunits arranged to form a ligand-gated ion channel. These subunits play a key role in the plasticity of synapses, which is believed to underlie memory and learning. Cell-specific factors are thought to control expression of different isoforms, possibly contributing to the functional diversity of the subunits. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2008]

glutamate receptor, ionotropic, N-methyl D-aspartate-associated protein 1 (glutamate binding)

Predicted to enable calcium channel activity. Predicted to be involved in apoptotic signaling pathway; negative regulation of extrinsic apoptotic signaling pathway via death domain receptors; and negative regulation of neuron apoptotic process. Predicted to act upstream of or within endoplasmic reticulum calcium ion homeostasis and negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway. Located in Golgi membrane. [provided by Alliance of Genome Resources, Mar 2025]

protein-L-isoaspartate (D-aspartate) O-methyltransferase domain containing 1 pseudogene 1

protein-L-isoaspartate (D-aspartate) O-methyltransferase domain containing 1 pseudogene 2

glutamate receptor, ionotropic, N-methyl D-aspartate 2B

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]

glutamate receptor, ionotropic, N-methyl D-aspartate 2C

This gene encodes a subunit of the N-methyl-D-aspartate (NMDA) receptor, which is a subtype of ionotropic glutamate receptor. NMDA receptors are found in the central nervous system, are permeable to cations and have an important role in physiological processes such as learning, memory, and synaptic development. The receptor is a tetramer of different subunits (typically heterodimer of subunit 1 with one or more of subunits 2A-D), forming a channel that is permeable to calcium, potassium, and sodium, and whose properties are determined by subunit composition. Alterations in the subunit composition of the receptor are associated with pathophysiological conditions such as Parkinson's disease, Alzheimer's disease, depression, and schizophrenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2013]

glutamate receptor, ionotropic, N-methyl D-aspartate 2A

This gene encodes a member of the glutamate-gated ion channel protein family. The encoded protein is an N-methyl-D-aspartate (NMDA) receptor subunit. NMDA receptors are both ligand-gated and voltage-dependent, and are involved in long-term potentiation, an activity-dependent increase in the efficiency of synaptic transmission thought to underlie certain kinds of memory and learning. These receptors are permeable to calcium ions, and activation results in a calcium influx into post-synaptic cells, which results in the activation of several signaling cascades. Disruption of this gene is associated with focal epilepsy and speech disorder with or without cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

glutamate receptor, ionotropic, N-methyl D-aspartate 2D

N-methyl-D-aspartate (NMDA) receptors are a class of ionotropic glutamate receptors. NMDA channel has been shown to be involved in long-term potentiation, an activity-dependent increase in the efficiency of synaptic transmission thought to underlie certain kinds of memory and learning. NMDA receptor channels are heteromers composed of the key receptor subunit NMDAR1 (GRIN1) and 1 or more of the 4 NMDAR2 subunits: NMDAR2A (GRIN2A), NMDAR2B (GRIN2B), NMDAR2C (GRIN2C), and NMDAR2D (GRIN2D). [provided by RefSeq, Mar 2010]

single-pass membrane protein with aspartate-rich tail 1

This gene encodes a core regulatory component of a calcium channel in the mitochondrial inner membrane. [provided by RefSeq, Apr 2017]

protein-L-isoaspartate (D-aspartate) O-methyltransferase domain containing 1 pseudogene 3

carbamoyl-phosphate synthetase 2, aspartate transcarbamylase, and dihydroorotase

The de novo synthesis of pyrimidine nucleotides is required for mammalian cells to proliferate. This gene encodes a trifunctional protein which is associated with the enzymatic activities of the first 3 enzymes in the 6-step pathway of pyrimidine biosynthesis: carbamoylphosphate synthetase (CPS II), aspartate transcarbamoylase, and dihydroorotase. This protein is regulated by the mitogen-activated protein kinase (MAPK) cascade, which indicates a direct link between activation of the MAPK cascade and de novo biosynthesis of pyrimidine nucleotides. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2015]

aspartate beta-hydroxylase

This gene is thought to play an important role in calcium homeostasis. The gene is expressed from two promoters and undergoes extensive alternative splicing. The encoded set of proteins share varying amounts of overlap near their N-termini but have substantial variations in their C-terminal domains resulting in distinct functional properties. The longest isoforms (a and f) include a C-terminal Aspartyl/Asparaginyl beta-hydroxylase domain that hydroxylates aspartic acid or asparagine residues in the epidermal growth factor (EGF)-like domains of some proteins, including protein C, coagulation factors VII, IX, and X, and the complement factors C1R and C1S. Other isoforms differ primarily in the C-terminal sequence and lack the hydroxylase domain, and some have been localized to the endoplasmic and sarcoplasmic reticulum. Some of these isoforms are found in complexes with calsequestrin, triadin, and the ryanodine receptor, and have been shown to regulate calcium release from the sarcoplasmic reticulum. Some isoforms have been implicated in metastasis. [provided by RefSeq, Sep 2009]

aspartate-rich 1

D-aspartate oxidase

The protein encoded by this gene is a peroxisomal flavoprotein that catalyzes the oxidative deamination of D-aspartate and N-methyl D-aspartate. Flavin adenine dinucleotide or 6-hydroxyflavin adenine dinucleotide can serve as the cofactor in this reaction. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2019]

aspartate dehydrogenase domain containing

Predicted to enable NADP binding activity and aspartate dehydrogenase activity. Predicted to be involved in NAD biosynthetic process. [provided by Alliance of Genome Resources, Mar 2025]

aspartate, glycine, lysine and serine-rich protein-like

glutamic-oxaloacetic transaminase 2, mitochondrial (aspartate aminotransferase 2) pseudogene

aspartate beta-hydroxylase domain containing 2

Predicted to enable dioxygenase activity and metal ion binding activity. Located in membrane. [provided by Alliance of Genome Resources, Mar 2025]

aspartate beta-hydroxylase domain containing 1

Predicted to enable dioxygenase activity. Predicted to be located in membrane. [provided by Alliance of Genome Resources, Mar 2025]

solute carrier family 25 (aspartate/glutamate carrier), member 13

This gene is a member of the mitochondrial carrier family. The encoded protein contains four EF-hand Ca(2+) binding motifs in the N-terminal domain, and localizes to mitochondria. The protein catalyzes the exchange of aspartate for glutamate and a proton across the inner mitochondrial membrane, and is stimulated by calcium on the external side of the inner mitochondrial membrane. Mutations in this gene result in citrullinemia, type II. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

solute carrier family 25 (aspartate/glutamate carrier), member 12

This gene encodes a calcium-binding mitochondrial carrier protein. The encoded protein localizes to the mitochondria and is involved in the exchange of aspartate for glutamate across the inner mitochondrial membrane. Polymorphisms in this gene may be associated with autism, and mutations in this gene may also be a cause of global cerebral hypomyelination. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Apr 2012]

glutamic-oxaloacetic transaminase 2, mitochondrial (aspartate aminotransferase 2) pseudogene

protein-L-isoaspartate (D-aspartate) O-methyltransferase domain containing 2

Predicted to enable protein-L-isoaspartate (D-aspartate) O-methyltransferase activity. Predicted to be involved in protein modification process. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Mar 2025]

protein-L-isoaspartate (D-aspartate) O-methyltransferase domain containing 1

Enables ubiquitin-like ligase-substrate adaptor activity. Involved in protein ubiquitination. Part of Cul5-RING ubiquitin ligase complex. [provided by Alliance of Genome Resources, Mar 2025]

solute carrier family 1 (high affinity aspartate/glutamate transporter), member 6

Enables L-aspartate transmembrane transporter activity; L-glutamate transmembrane transporter activity; and glutamate:sodium symporter activity. Involved in L-aspartate import across plasma membrane; L-glutamate import across plasma membrane; and neurotransmitter uptake. Located in intermediate filament cytoskeleton and plasma membrane. [provided by Alliance of Genome Resources, Mar 2025]