Anti-GABAB Receptor (Ser783), R2-Subunit 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).