In molecular biology, the set of protein kinases in its genome.

Kinases are enzymes that catalyze phosphorylation group to a protein or other organic molecule reactions (of amino acids) and fall into several groups and families; for example, those that phosphorylate the amino acids serine and threonine, those that phosphorylate tyrosine and some that can phosphorylate both.

Phosphorylation is the addition of a phosphate group (inorganic acid mineral) to a protein or other organic molecule.