Diacylglycerol kinase (CTP dependent) (, DAG kinase, CTP-dependent diacylglycerol kinase, diglyceride kinase) is an enzyme with systematic name CTP:1,2-diacyl-sn-glycerol 3-phosphotransferase. This enzyme catalyses the following chemical reaction
This enzyme requires Ca<sup>2+</sup> or Mg<sup>2+</sup> for activity.