Tags: Enzyme.
In enzymology a myosin-heavy-chain kinase (EC 2.7.11.7) is an enzyme that catalyzes the chemical reactionATP + [myosin heavy-chain] ADP + [myosin heavy-chain] phosphateThus the two substrates of this enzyme are ATP and myosin heavy-chain whereas its two products are ADP and myosin heavy-chain phosphate.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).