Aliases for GABRR2 Gene
External Ids for GABRR2 Gene
Previous GeneCards Identifiers for GABRR2 Gene
GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA receptors, which are ligand-gated chloride channels. The protein encoded by this gene is a member of the rho subunit family and is a component of the GABA receptor complex. [provided by RefSeq, Jul 2008]
GeneCards Summary for GABRR2 Gene
GABRR2 (Gamma-Aminobutyric Acid (GABA) A Receptor, Rho 2) is a Protein Coding gene. Among its related pathways are Circadian entrainment and GABA receptor activation. GO annotations related to this gene include protein domain specific binding and extracellular ligand-gated ion channel activity. An important paralog of this gene is GABRR1.
UniProtKB/Swiss-Prot for GABRR2 Gene
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-2 GABA receptor could play a role in retinal neurotransmission
GABAC receptors are Cys-loop ionotropic ligand-gated ion channels mediating the fast synaptic inhibitory effects of GABA. Despite differing in physiology, biochemistry and pharmacology, GABAC receptors are viewed as a subclass of GABAA receptors. GABAC receptors exist as both homo- and hetero-oligomeric pentamers of the 3 GABAC subunits which have so far been discovered; rho1, rho2, rho3. The resulting ion channel is not blocked or modulated by GABAA receptor ligands, but is 10 times more sensitive to the effects of GABA and selectively blocked by TPMPA. In addition, the GABAC receptor has a longer channel opening time and is slower to desensitize. GABAC receptors are expressed in various brain regions and particularly high levels are found in the retina.