期刊
SCIENCE
卷 305, 期 5683, 页码 516-519出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1099402
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资金
- NIGMS NIH HHS [GM59940] Funding Source: Medline
Budding yeast protein phosphatase Cdc14 is sequestered in the nucleolus in an inactive state during interphase by the anchor protein Net1. Upon entry into anaphase, the Cdc14 early anaphase release ( FEAR) network initiates dispersal of active Cdc14 throughout the cell. We report that the FEAR network promotes phosphorylation of Net1 by cyclin-dependent kinase (Cdk) complexed with cyclin B1 or cyclin B2. These phosphorylations appear to be required for FEAR and sustain the proper timing of late mitotic events. Thus, a regulatory circuit exists to ensure that the arbiter of the mitotic state, Cdk, sets in motion events that culminate in exit from mitosis.
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