Anti-Phospho-GABAB R2 (Ser783) GABBR2 Antibody

Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system. There are two major classes of GABA receptors: the GABA-A and the GABA-B subtype of receptors. GABA-B receptors are heterodimeric G protein-coupled receptors that mediate slow synaptic inhibition in the central nervous system. It has recently been demonstrated that AMPK binds directly to GABA-B receptors and phosphorylates Ser-783 in the cytoplasmic tail of the R2 subunit and that Ser-783 plays a critical role in enhancing neuronal survival after ischemia as phosphorylation of Ser-783 is evident in many brain regions and is increased dramatically after ischemic injury to the brain (Kuramoto et al., 2007) .

BcDNA:GH07312 antibody, CG6706 antibody, CT20836 antibody, D Gaba2 antibody, FLJ36928 antibody, G protein coupled receptor 51 antibody, G-protein coupled receptor 51 antibody, GAB B R2 antibody, GABA B R2 antibody, GABA B receptor 2 antibody, GABA-B receptor 2 antibody, GABA-B-R2 antibody, GABA-BR2 antibody, GABAB R2 antibody, GABABR 2 antibody, GABABR2 antibody, GABB R2 antibody, GABBR 2 antibody, Gabbr2 antibody, GABR2_HUMAN antibody, Gamma aminobutyric acid B receptor 2 antibody, Gamma aminobutyric acid GABA B receptor 2 antibody, Gamma aminobutyric acid type B receptor subunit 2 antibody, Gamma-aminobutyric acid type B receptor subunit 2 antibody, Gb 2 antibody, Gb2 antibody, GH07312 antibody, GPR 51 antibody, GPR51 antibody, GPRC 3B antibody, GPRC3B antibody, HG 20 antibody, HG20 antibody, HRIHFB2099 antibody, Metabotropic GABA B receptor subtype 2 antibody, OTTHUMP00000021776 antibody, OTTHUMP00000063797 antibody, R2 SUBUNIT antibody

Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser783 of the R2 subunit of rat GABAB recerptor, conjugated to keyhole limpet hemocyanin (KLH) . Immunogen species is Rat.

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 heart, testis and skeletal muscle.

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.

Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C. After date of receipt, stable for at least 1 year at -20°C.

Specific for endogenous levels of the ~102 kDa GABAB R2 phosphorylated at Ser783. Immunolabeling is completely eliminated by treatment with λ-phosphatase.

Cell membrane; Multi-pass membrane protein. Cell junction, synapse, postsynaptic cell membrane; Multi-pass membrane protein. Coexpression of GABBR1 and GABBR2 is required for GABBR1 maturation and transport to the plasma membrane. In contrast, GABBR2 does not depend on GABBR1 for transport to the cell membrane.