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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]
GRIN2D (Glutamate Ionotropic Receptor NMDA Type Subunit 2D) is a Protein Coding gene. Diseases associated with GRIN2D include Epileptic Encephalopathy, Early Infantile, 46 and Undetermined Early-Onset Epileptic Encephalopathy. Among its related pathways are Nicotine addiction and RET signaling. Gene Ontology (GO) annotations related to this gene include ionotropic glutamate receptor activity and NMDA glutamate receptor activity. An important paralog of this gene is GRIN2C.
NMDA receptors are members of the ionotropic class of glutamate receptors, which also includes Kainate and AMPA receptors. NMDA receptors consist of NR1 subunits combined with NR2 (A-D) or NR3 (A-B) subunits. The ligand-gated channel is permeable to cations.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0004970 | ionotropic glutamate receptor activity | IDA | 27616483 |
GO:0004972 | NMDA glutamate receptor activity | IBA,TAS | 17526495 |
GO:0005216 | ion channel activity | IEA | -- |
GO:0005515 | protein binding | IPI | 11937501 |
GO:0008066 | glutamate receptor activity | IBA | -- |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005623 | cell | IEA | -- |
GO:0005886 | plasma membrane | TAS | -- |
GO:0005887 | integral component of plasma membrane | IDA | 26875626 |
GO:0016020 | membrane | IEA | -- |
GO:0016021 | integral component of membrane | IEA | -- |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | RET signaling |
.92
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.92
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2 | Post NMDA receptor activation events | ||
3 | Transmission across Chemical Synapses |
.62
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4 | Amphetamine addiction | ||
5 | Circadian entrainment |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0001964 | startle response | IEA | -- |
GO:0006811 | ion transport | IEA | -- |
GO:0007420 | brain development | NAS | 17526495 |
GO:0008344 | adult locomotory behavior | IEA | -- |
GO:0019722 | calcium-mediated signaling | IEA | -- |
Name | Status | Disease Links | Group | Role | Mechanism of Action | Clinical Trials |
---|---|---|---|---|---|---|
Orphenadrine | Approved | Pharma | Target, antagonist | 10 | ||
Meperidine | Approved | Pharma | Target, antagonist | 83 | ||
Glutamic acid | Approved | Nutra | Agonist, Full agonist, Target | 304 | ||
D-serine | Approved, Experimental | Pharma | Agonist, modulator | 0 | ||
Ketamine | Approved, Vet_approved | Pharma | Channel blocker, antagonist | 876 |
Name | Synonyms | Role | CAS Number | PubChem IDs | PubMed IDs | |
---|---|---|---|---|---|---|
[<sup>3</sup>H]MK-801 |
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CGS19755 |
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Antagonist |
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MK-801 |
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Channel blocker |
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Ifenprodil hemitartrate |
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23210-56-2 |
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Compound | Action | Cas Number |
---|---|---|
cis-ACPD | Potent NMDA agonist. Also group II mGluR agonist | 477331-06-9 |
HU 211 | NMDA receptor antagonist; also NF-kappaB inhibitor | 112924-45-5 |
Ibotenic acid | Non-selective NMDA agonist | 2552-55-8 |
Ifenprodil hemitartrate | Non-competitive NMDA antagonist. Also sigma ligand | 23210-56-2 |
L-Cysteinesulfinic acid | NMDA and mGlu agonist | 1115-65-7 |
Compound | Action | Cas Number |
---|---|---|
(-)-Huperzine A | NMDA receptor antagonist/AChE inhibitor | 102518-79-6 |
(+)-MK 801 | Potent NMDA antagonist | 70449-94-4 |
ExUns: | 1 | ^ | 2 | ^ | 3 | ^ | 4 | ^ | 5 | ^ | 6 | ^ | 7 | ^ | 8 | ^ | 9 | ^ | 10a | · | 10b | ^ | 11 | ^ | 12 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SP1: | - | ||||||||||||||||||||||||
SP2: | - | ||||||||||||||||||||||||
SP3: |
This gene was present in the common ancestor of animals.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Dog (Canis familiaris) |
Mammalia | GRIN2D 30 31 |
|
OneToOne | |
Cow (Bos Taurus) |
Mammalia | GRIN2D 30 31 |
|
OneToOne | |
Mouse (Mus musculus) |
Mammalia | Grin2d 30 17 31 |
|
OneToOne | |
Oppossum (Monodelphis domestica) |
Mammalia | GRIN2D 31 |
|
OneToOne | |
Rat (Rattus norvegicus) |
Mammalia | Grin2d 30 |
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||
Platypus (Ornithorhynchus anatinus) |
Mammalia | GRIN2D 31 |
|
OneToOne | |
Lizard (Anolis carolinensis) |
Reptilia | GRIN2D 31 |
|
OneToOne | |
Tropical Clawed Frog (Silurana tropicalis) |
Amphibia | grin2d 30 |
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||
Zebrafish (Danio rerio) |
Actinopterygii | grin2da 31 |
|
OneToMany | |
Fruit Fly (Drosophila melanogaster) |
Insecta | Nmdar2 30 32 |
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||
African malaria mosquito (Anopheles gambiae) |
Insecta | AgaP_AGAP012429 30 |
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Worm (Caenorhabditis elegans) |
Secernentea | nmr-2 30 |
|
SNP ID | Clinical significance and condition | Chr 19 pos | Variation | AA Info | Type |
---|---|---|---|---|---|
689624 | Uncertain Significance: Epileptic encephalopathy, early infantile, 46 | 48,442,814(+) | G/A | MISSENSE_VARIANT | |
711753 | Likely Benign: not provided | 48,443,172(+) | G/C | SYNONYMOUS_VARIANT | |
718466 | Benign: not provided | 48,443,289(+) | G/C | SYNONYMOUS_VARIANT | |
721161 | Benign: not provided | 48,404,958(+) | C/G | SYNONYMOUS_VARIANT | |
721162 | Likely Benign: not provided | 48,441,946(+) | C/T | SYNONYMOUS_VARIANT |
Variant ID | Type | Subtype | PubMed ID |
---|---|---|---|
esv23564 | CNV | gain | 19812545 |
esv25255 | CNV | loss | 19812545 |
esv2671636 | CNV | deletion | 23128226 |
esv34181 | CNV | loss | 18971310 |
esv3644587 | CNV | loss | 21293372 |
nsv1072889 | CNV | deletion | 25765185 |
nsv1126526 | CNV | deletion | 24896259 |
nsv828572 | CNV | loss | 20364138 |
nsv833854 | CNV | loss | 17160897 |
nsv9739 | CNV | gain+loss | 18304495 |
Disorder | Aliases | PubMed IDs |
---|---|---|
epileptic encephalopathy, early infantile, 46 |
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undetermined early-onset epileptic encephalopathy |
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fibromyalgia |
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high pressure neurological syndrome |
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schizophrenia 7 |
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