Gabra1 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.
Overview
Structure
The GABA-A receptor alpha1 subunit is a member of the Cys-loop ligand-gated ion channel family. Each subunit consists of:
Extracellular N-terminal domain: Contains the characteristic Cys-loop motif and binding sites for GABA and benzodiazepines
Transmembrane domains: Four hydrophobic helices (M1-M4) that form the ion channel pore
Intracellular loop: Between M3 and M4, involved in trafficking and modulation
C-terminal extracellular domain
The receptor is a heteromeric assembly of five subunits (typically 2α, 2β, 1γ or δ) forming a chloride channel.
Normal Function
Receptor Composition
The alpha1 subunit is the most abundant GABA-A receptor subunit
Forms receptors with distinct pharmacological properties
Confers benzodiazepine sensitivity when combined with gamma2 subunit
Physiological Roles
Mediates fast inhibitory synaptic transmission
Regulates neuronal excitability throughout the CNS
Controls sedation, anxiolysis, muscle relaxation, and anticonvulsant effects
Important for sleep architecture
Role in Disease
Epilepsy
GABRA1 mutations: Cause genetic epilepsy syndromes (JME,CAE,LGS)
The study of Gabra1 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.
References
Sigel E, et al, (2012) (2012)
Rudolph U, et al, (2001) (2001)
Unknown, Möhler H. (2006) (2006)
Macdonald RL, et al, (2010) (2010)
Sieghart W, (2006) (2006)
Whiting PJ, (2003) (2003)
Korpi ER, et al, (2002) (2002)
Luscher B, et al, (2011) (2011)
Related Hypotheses
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