Anti-Alpha 2b Adrenergic Receptor from rabbit, purified by affinity chromatography

Alpha-2B adrenergic receptor (UniProt: P18089; also known as Alpha-2 adrenergic receptor subtype C2, Alpha-2B adrenoreceptor, Alpha-2B adrenoceptor, Alpha-2BAR) is encoded by the ADRA2B (also known as ADRA2L1, ADRA2RL1) gene (Gene ID: 151) in human. Alpha-2-adrenergic receptors mediate part of the diverse biological effects of the endogenous catecholamines epinephrine and norepinephrine. Three subtypes of alpha-2-adrenergic receptors, 2A, 2B, and 2C, have been identified in multiple species. Alpha-2B adrenoreceptor is a heptahelical membrane protein of the G-protein coupled receptor 1 family. The extracellular regions of transmembrane (TM) segments 3, 5, and 6 are believed to be involved in ligand binding and intracellular ends of TM3 and TM6 participate in G-protein coupling. A deletion variant of the ADRA2B gene has been linked to the emotional enhancement of memory. This deletion variant is associated with greater extracellular nor-epinephrine availability and it predicts greater capacity for emotionally enhanced memory and increased tendency for intrusive traumatic memory. Mutations in ADRA2B gene have been linked to familial adult myoclonic epilepsy that is characterized by cortical myoclonus and variable occurrence of epileptic seizures.