Beta-2 adrenergic receptor
From DrugPedia: A Wikipedia for Drug discovery
Contents |
Source Organism
Bos taurus (Bovine).
Taxomomy
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;Mammalia; Eutheria; Laurasiatheria; Cetartiodactyla; Ruminantia;Pecora; Bovidae; Bovinae; Bos.
Subcellular Localization
Cell membrane; multi-pass membrane protein.
Developmental Stage
Similarity
Belongs to the G-protein coupled receptor 1 family.
Post translational Modification
Palmitoylated; may reduce accessibility of Ser-345 and Ser- 346 by anchoring Cys-341 to the plasma membrane. Agonist stimulation promotes depalmitoylation and further allows Ser-345 and Ser-346 phosphorylation (By similarity). Phosphorylated by PKA and BARK upon agonist stimulation, which mediates homologous desensitization of the receptor. PKA- mediated phosphorylation seems to facilitate phosphorylation by BARK (By similarity).
Function
Beta-adrenergic receptors mediate the catecholamine- induced activation of adenylate cyclase through the action of G proteins. The beta-2-adrenergic receptor binds epinephrine with an approximately 30-fold greater affinity than it does norepinephrine (By similarity).
