CELL DIVISION PROTEIN KINASE 7 (EC 2.7.1.-) (CDK-ACTIVATING KINASE) (CAK) (TFIIH BASAL TRANSCRIPTION FACTOR COMPLEX KINASE SUBUNIT) (39 KDA PROTEIN KINASE) (P39 MO15) (STK1) (CAK1). [Source:SWISSPROT;Acc:P50613]