Using kinetic studies to uncover new Rb functions in inhibiting cell cycle progression.

Abstract excerpt

A well-established biological activity of the tumor suppressor Rb is blocking G1/S cell cycle progression when reintroduced into cultured Rb-deficient tumor cells. The best understood molecular mechanism underlying this function is that Rb binds the transcription factor E2F to repress expression of S phase genes such as cyclins E and A. A recent kinetic study of this model further revealed that Rb represses Skp2...

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