In enzymology, a tropomyosin kinase (EC 2.7.11.28) is an enzyme that catalyzes the chemical reaction Thus, 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).
The systematic name of this enzyme class is ATP:tropomyosin O-phosphotransferase.
Other names in common use include tropomyosin kinase (phosphorylating), and STK.
This EC 2.7 enzyme-related article is a stub.