Gaba A Receptor Beta2 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.
| GABA-A Receptor Beta2 Protein | |
|---|---|
| Protein Name | Gamma-aminobutyric acid type A receptor beta2 subunit |
| Gene | GABRB2 |
| UniProt ID | P47870 |
| PDB ID | 6COG, 6D6U, 6HUP |
| Molecular Weight | 54 kDa (474 aa) |
| Subcellular Localization | Plasma membrane (synaptic) |
| Protein Family | Cys-loop receptor family |
GABRB2 (GABA-A Receptor Subunit Beta2) is a protein encoded by a gene located on chromosome 5q34. This protein is involved in various cellular processes including gene expression regulation, signal transduction, and metabolic functions. GABRB2 plays important roles in neuronal function and is implicated in neurodegenerative diseases.
The GABA-A receptor is a pentameric ligand-gated chloride channel. The beta2 subunit contributes to the extracellular ligand-binding domain and the transmembrane channel pore:
The receptor typically contains:
GABA-A receptors mediate fast inhibitory neurotransmission:
The beta2 subunit is essential for:
| Approach | Drug/Agent | Status | Mechanism |
|---|---|---|---|
| Positive allosteric modulators | Benzodiazepines | FDA approved | Enhance GABA binding |
| Agonists | Muscimol, Gaboxadol | Research | Direct receptor activation |
| Antagonists | Bicuculline | Research | Block receptor function |
| Negative modulators | Flumazenil (partial) | FDA approved | Inverse agonist at α/γ |
The study of Gaba A Receptor Beta2 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.