Polo kinase

In enzymology, a polo kinase (EC2.7.11.21) is a kinase enzyme i.e. one that catalyzes the chemical reaction

Thus, the two substrates of these enzymes are ATP and protein, whereas their two products are ADP and phosphoprotein.

These enzymes belong 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).