Rabbit anti-Human GABBR2 Polyclonal Antibody

Uniprot Id

O75899

Target Species

Human

Target Name

GABBR2

Target Full Name

Gamma-aminobutyric acid type B receptor subunit 2

Target Function

Component of a heterodimeric G-protein coupled receptor for GABA, formed by GABBR1 and GABBR2. Within the heterodimeric GABA receptor, only GABBR1 seems to bind agonists, while GABBR2 mediates coupling to G proteins. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase, stimulates phospholipase A2, activates potassium channels, inactivates voltage-dependent calcium-channels and modulates inositol phospholipid hydrolysis. Plays a critical role in the fine-tuning of inhibitory synaptic transmission. Pre-synaptic GABA receptor inhibits neurotransmitter release by down-regulating high-voltage activated calcium channels, whereas postsynaptic GABA receptor decreases 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 (Probable).

Target Subcellular Location

Cell membrane; Multi-pass membrane protein. Cell junction, synapse, postsynaptic cell membrane; Multi-pass membrane protein.

Target Protein Families

G-protein coupled receptor 3 family, GABA-B receptor subfamily

Target Tissue Specificity

Highly expressed in brain, especially in cerebral cortex, thalamus, hippocampus, frontal, occipital and temporal lobe, occipital pole and cerebellum, followed by corpus callosum, caudate nucleus, spinal cord, amygdala and medulla. Weakly expressed in hear

Target Synonyms

BcDNA:GH07312; CG6706; CT20836; D Gaba2; FLJ36928; G protein coupled receptor 51; G-protein coupled receptor 51; GAB B R2; GABA B R2; GABA B receptor 2; GABA-B receptor 2; GABA-B-R2; GABA-BR2; GABAB R2; GABABR 2; GABABR2; GABB R2; GABBR 2; Gabbr2; GABR2_HUMAN; 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

Target Background

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.