Chk1 versus Cdc25: chking one's levels of cellular proliferation.

  title={Chk1 versus Cdc25: chking one's levels of cellular proliferation.},
  author={Michael H. Lam and Jeffrey M. Rosen},
  journal={Cell cycle},
  volume={3 11},
This review summarizes recent studies which have provided new insight into the mechanisms by which the DNA damage response kinase, Chk1 inhibits the dual specificity phosphatase, Cdc25, and thereby regulates cell cycle progression. Recently, Chk1 has been shown to not only regulate Cdc25A degradation but also its ability to interact with various Cdk complexes through phosphorylation of the carboxy-terminus of the phosphatase. Surprisingly, these effects appear to be specific for Chk1, but not… CONTINUE READING
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