Tags: Enzyme.
In enzymology a beta-adrenergic-receptor kinase (EC 2.7.11.15) is an enzyme that catalyzes the chemical reaction:ATP + [beta-adrenergic receptor] ADP + phospho-[beta-adrenergic receptor]Thus the two substrates of this enzyme are ATP and beta-adrenergic receptor whereas its two products are ADP and phospho-beta-adrenergic receptor.This enzyme belongs to the family of transferases specifically those transferring a phosphate group to the sidechain oxygen atom of serine or threonine residues in proteins (protein-serine/threonine kinases).