Sutton et al., Genetics 1997
:
Analysis of several different cak1 mutants shows that although the G2 to M transition appears most sensitive to loss of Cak1p function, Cak1p is also required for activation of Cdc28p for progression from G1 into S phase
Espinoza et al., Mol Cell Biol 1998
:
Cak1 is required for the phosphorylation and activation of Cdc28 , a major CDK involved in cell cycle control