The cell cycle consists of four phases: S phase (in which genetic material is duplicated); mitosis (during which it is segregated between two daughter cells); and two 'rest' phases, G1 and G2. The transition between mitosis and G1 needs to be precisely timed, and one of the molecular steps involved in controlling this transition has now been pinned down to a protein known as Cdc20.
- Susanne Prinz
- Angelika Amon
