GALR2 antibody

Background of GALR2 antibody

Galanin is an important neuromodulator present in the brain, gastrointestinal system, and hypothalamopituitary axis. It is a 30 amino acid non-C-terminally amidated peptide that potently stimulates growth hormone secretion, inhibits cardiac vagal slowing of heart rate, abolishes sinus arrhythmia, and inhibits postprandial gastrointestinal motility. The actions of galanin are mediated through interaction with specific membrane receptors that are members of the 7 transmembrane family of G protein coupled receptors. GALR2 interacts with the N terminal residues of the galanin peptide. The primary signaling mechanism for GALR2 is through the phospholipase C/protein kinase C pathway (via Gq), in contrast to GALR1, which communicates its intracellular signal by inhibition of adenylyl cyclase through Gi. However, it has been demonstrated that GALR2 couples efficiently to both the Gq and Gi proteins to simultaneously activate 2 independent signal transduction pathways.GalR2 expression has been documented widely in the brain and in peripheral tissues including small intestine, heart, kidney, and liver. Localization data from rat CNS indicate high levels of expression in dorsal root ganglia, amygdala and Purkinje neurons.