The progression of cytokinesis requires cyclin B destruction by the anaphase promoting complex (APC/C) and, in fission yeast, activation of the septation initiation network (SIN) is also essential. The gamma-tubulin complex (gamma-TuC) localizes to the centrosome throughout the cell cycle and is directly involved in the organization of the mitotic spindle.
Laboratory of Cell Regulation, Cancer Research UK, London Research Institute, Lincoln's Inn Fields Laboratories, PO Box 123, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.