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Target intelligence / Profile preview
GABAA Receptor Beta Subunit (GABAAR β)
- Target
- GABAAR β
- Molecular classification
- Ligand-gated ion channel, GABAA receptor subunit, Neurotransmitter receptor
01
Overview
The GABAA receptor beta subunit is an essential component of the GABAA receptor, a major inhibitory neurotransmitter receptor in the mammalian brain. It forms part of the pentameric receptor complex responsible for mediating fast synaptic inhibition via chloride ion influx upon GABA binding. Three beta subunit isoforms (β1, β2, β3) exist, each contributing to distinct receptor properties and drug binding sites. The presence of at least one beta subunit is required for functional receptor assembly. Beta subunits are implicated in various neurological and psychiatric disorders due to their role in inhibitory neurotransmission.
- Other names
- GABAA Receptor Beta1 SubunitGABAA Receptor Beta2 SubunitGABAA Receptor Beta3 SubunitGABRB1GABRB2GABRB3
02
Mechanism of action
Agonist binding leading to chloride ion channel opening and neuronal hyperpolarization.
03
Biological functions
Inhibitory neurotransmissionChloride ion transportSynaptic inhibitionNeuronal excitability regulation
04
Disease associations
EpilepsyAnxiety disordersNeurodevelopmental disordersSchizophreniaAutism Spectrum Disorder
05
Safety considerations
SedationRespiratory depressionToleranceDependenceAbuse potentialPotential for paradoxical effects
06
Interacting drugs
GABA
7 more in the full profile.
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