Mglur4 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
This gene/protein plays important roles in neuronal function and is relevant to neurodegenerative disease research.
| Metabotropic Glutamate Receptor 4 | |
|---|---|
| Protein Name | mGluR4 |
| Gene | GRM4 |
| UniProt ID | Q14833 |
| PDB Structures | 5CCH, 5CCJ |
| Molecular Weight | ~98 kDa |
| Subcellular Localization | Plasma membrane (presynaptic) |
| Protein Family | Class C G protein-coupled receptor (GPCR) |
mGluR4 has the typical class C GPCR structure with a large extracellular domain (VFT), cysteine-rich domain, and seven-transmembrane domain. It is a Group III metabotropic glutamate receptor. The receptor has unique pharmacological properties and is the target of selective agonists.
mGluR4 is primarily a presynaptic receptor that inhibits adenylyl cyclase, reducing neurotransmitter release. It is highly expressed in the basal ganglia, particularly in the striatum and substantia nigra, where it modulates motor control. The receptor is activated by relatively high concentrations of glutamate and L-AP4, making it an autoreceptor that terminates synaptic transmission. It also modulates GABA release.
| Disease | Role | Mechanism |
|---|---|---|
| Parkinson's Disease | Therapeutic target | Motor circuit dysregulation |
| Huntington's Disease | Risk factor | GABAergic dysfunction |
| Epilepsy | Risk factor | Inhibitory modulation |
The study of Mglur4 Protein 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.