The protein encoded by this gene contains a kinase domain most closely related to the cyclin-dependent protein kinases. The encoded kinase may activate cyclin-dependent kinase 2 and is involved in cell growth. Alternatively spliced transcript variants encoding distinct isoforms have been reported.,CDK20,CCRK,CDCH,P42,PNQALRE,Epigenetics & Nuclear Signaling,Signal Transduction,Kinase,Cell Biology & Developmental Biology,Cell Cycle,CDK20