The S phase of the cell cycle and its perturbation by human cytomegalovirus

Mark Bain1, John Sinclair

  • 1Department of Medicine, University of Cambridge Clinical School, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge, UK.

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Phases of Interphase
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Interphase

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The Cell Cycle Control System

The cell cycle regulation directs how a cell proceeds from one phase to the next and begins mitosis. The cell cycle control system includes intracellular regulatory molecules and external triggers. They provide "stop" or "advance" signals and operate at specific cell cycle stages termed checkpoints to ensure that a particular process is completed before the cell advances to the next phase.
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