The beta-adrenergic receptor kinase specifically phosphorylates the agonist-occupied form of the beta-adrenergic and related G protein-coupled receptors. Overall, the ADRBK2 enzyme, also known as GRK3, has 85% amino acid similarity with ADRBK1, with the protein kinase catalytic domain having 95% similarity. The ADRBK2 mRNA is approximately 8 kilobases with a distribution similar to that of ADRBK1. These data suggest the existence of a family of receptor kinases which may serve broadly to regulate receptor function.
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Protein Aliases: adrenergic receptor kinase, beta 2 (G-protein-linked receptor kinase); adrenergic, beta, receptor kinase 2; beta ARK2; Beta-adrenergic receptor kinase 2; Beta-ARK-2; G-protein-coupled receptor kinase 3
Gene Aliases: 4833444A01Rik; Adrbk-2; ADRBK2; AI851927; AW551196; Bark-2; BARK2; GRK3