Description
Product Characteristics:
Receptor for GABA. The activity of this receptor is mediated by G-proteins that inhibit adenylyl cyclase activity, stimulates phospholipase A2, activates potassium channels, inactivates voltage-dependent calcium-channels and modulates inositol phospholipids hydrolysis. Plays a critical role in the fine-tuning of inhibitory synaptic transmission. Pre-synaptic GABA-B-R inhibit neurotransmitter release by down-regulating high-voltage activated calcium channels, whereas postsynaptic GABA-B-R decrease neuronal excitability by activating a prominent inwardly rectifying potassium (Kir) conductance that underlies the late inhibitory postsynaptic potentials. Not only implicated in synaptic inhibition but also in hippocampal long-term potentiation, slow wave sleep, muscle relaxation and antinociception.
Subcellular location: Cytoplasm, Cell membrane
Synonyms: GABA B Receptor 2 phospho S783, p-GABA B Receptor 2 phospho S783, GABBR2 Ser783, p-GABBR2 Ser783, GABBR2, GB2, G protein coupled receptor 51, G-protein coupled receptor 51, GAB B R2, GABA B R2, GABA B receptor 2, GABA B RECEPTOR, GABA-B receptor 2, GABA-B-R2, GABA-BR2, GABA[[B]]R2, GABAB R2, GABABR 2, GABABR2, GABB R2, GABBR 2, Gabbr2, GABR2_HUMAN, Gamma aminobutyric acid GABA B receptor 2, Gamma aminobutyric acid B receptor 2, Gamma aminobutyric acid GABA B receptor 2, Gamma aminobutyric acid type B receptor subunit 2, Gamma-aminobutyric acid type B receptor subunit 2, Gb 2, Gb2, GH07312, GPR 51, GPR51, GPRC 3B, GPRC3B, HG 20, HG20, HRIHFB2099, Metabotropic GABA B receptor subtype 2, OTTHUMP00000021776, OTTHUMP00000063797, R2 SUBUNIT, BcDNA:GH07312, CG6706, CT20836, D GABA[[B]]R2, D Gaba2, FLJ36928.
Target Information: The multi-pass membrane protein encoded by this gene belongs to the G-protein coupled receptor 3 family and GABA-B receptor subfamily. The GABA-B receptors inhibit neuronal activity through G protein-coupled second-messenger systems, which regulate the release of neurotransmitters, and the activity of ion channels and adenylyl cyclase. This receptor subunit forms an active heterodimeric complex with GABA-B receptor subunit 1, neither of which is effective on its own. Allelic variants of this gene have been associated with nicotine dependence.[provided by RefSeq, Jan 2010]