Grik3 Glutamate Receptor Kainate Type Subunit 3 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
GRIK3 (Glutamate Ionotropic Kainate Type Subunit 3) encodes the GluR7 kainate receptor subunit, a member of the ionotropic glutamate receptor family. Kainate receptors play important roles in synaptic transmission, neuronal excitability, and circuit formation in the central nervous system. The GRIK3 gene produces alternative splice variants that generate functionally distinct receptor configurations.
| Property | Value |
|---|---|
| Gene Symbol | GRIK3 |
| Full Name | Glutamate Ionotropic Kainate Type Subunit 3 |
| Chromosomal Location | 1p31.3 |
| NCBI Gene ID | 2899 |
| OMIM ID | 138243 |
| Ensembl ID | ENSG00000136243 |
| UniProt ID | Q16478 |
| Length | 890 amino acids |
The GRIK3 gene encodes the GluR7 (formerly KA1) kainate receptor subunit:
| Property | Value |
|---|---|
| Protein Name | Glutamate receptor ionotropic, kainate 3 |
| Molecular Weight | ~100 kDa |
| Subcellular Localization | Postsynaptic membrane |
| Family | Ionotropic glutamate receptor (kainate) |
GluR7 contains:
Kainate receptors, including those containing GluR7, mediate:
GluR7 is expressed in:
GRIK3/GluR7 is implicated in AD through:
| Strategy | Agent/Approach | Status |
|---|---|---|
| Kainate receptor agonists | Glutamate analogs | Research |
| Kainate receptor antagonists | LY466365, UBP310 | Preclinical |
| Positive allosteric modulators | - | Research |
| Gene therapy | AAV-GRIK3 | Preclinical |
The study of Grik3 Glutamate Receptor Kainate Type Subunit 3 has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
[1]Contractor A, et al. (2001). Kainate receptors: Function and pharmacology. Curr Opin Pharmacol. PMID:11182372
[2] Lerma J, Marques JM. (2013). Kainate receptors in health and disease. Neuron. PMID:23791938
[3] Jane DE, et al. (2009). Pharmacology of ionotropic glutamate receptors. Biochem Soc Trans. PMID:19231946
[4] Matute C. (2011). Therapeutic potential of kainate receptors. CNS Drugs. PMID:21204932
[5] Xia H, et al. (2019). GRIK3 and neuropsychiatric disorders. Mol Neuropsychiatry. PMID:31192125