Dikinase

Dikinases are a category of enzymes that catalyze the chemical reaction

Dikinases are all phosphotransferases. Their designated EC number is 2.7.9. It is one of the smallest groups of phosphotransferases.

Dikinases take two phosphate groups from ATP and transfer each one to a different acceptor. This results in AMP and two different phosphorylated compounds. In most dikinases, one of the acceptors is water. In at least one dikinase (pyruvate, phosphate dikinase), one of the acceptors is inorganic phosphate, resulting in diphosphate.