期刊
SCIENCE
卷 300, 期 5618, 页码 482-486出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1081846
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资金
- NIGMS NIH HHS [GM62207] Funding Source: Medline
Meiosis is a specialized cell division in which two chromosome segregation phases follow a single DNA replication phase. The budding yeast Polo-like kinase Cdc5 was found to be instrumental in establishing the meiosis I chromosome segregation program. Cdc5 was required to phosphorylate and remove meiotic cohesin from chromosomes. Furthermore, in the absence of CDC5 kinetochores were bioriented during meiosis I, and Mam1, a protein essential for coorientation, failed to associate with kinetochores. Thus, sister-kinetochore coorientation and chromosome segregation during meiosis I are coupled through their dependence on CDC5.
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