(d)CMP kinase (, prokaryotic cytidylate kinase, deoxycytidylate kinase, dCMP kinase, deoxycytidine monophosphokinase) is an enzyme with systematic name ATP:(d)CMP phosphotransferase. This enzyme catalyses the following chemical reaction
The prokaryotic cytidine monophosphate kinase specifically phosphorylates CMP (or dCMP).