Tags: Enzyme.
In enzymology a tropomyosin kinase (EC 2.7.11.28) is an enzyme that catalyzes the chemical reactionATP + tropomyosin ADP + O-phosphotropomyosinThus the two substrates of this enzyme are ATP and tropomyosin whereas its two products are ADP and O-phosphotropomyosin.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).