Topoisomerase II mediates meiotic crossover interference.
Topoisomerase II mediates meiotic crossover interference.
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DOI:
10.1038/nature13442
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发表时间:
2014-07-31
期刊:
影响因子:
64.8
通讯作者:
Kleckner, Nancy
中科院分区:
文献类型:
--
作者:
Zhang, Liangran;Wang, Shunxin;Yin, Shen;Hong, Soogil;Kim, Keun P.;Kleckner, Nancy
Spatial patterning is a ubiquitous feature of biological systems. Meiotic crossovers provide an interesting example, defined by the classical phenomenon of crossover interference. Here, analysis of crossover patterns in budding yeast identifies a molecular pathway for interference. Topoisomerase II (Topo II) plays a central role, thus identifying a new function for this critical molecule. SUMOylation [of TopoII and axis component Red1] and ubiquitin-mediated removal of SUMOylated proteins are also required. These and other findings support the hypothesis that crossover interference involves accumulation, relief and redistribution of mechanical stress along the protein/DNA meshwork of meiotic chromosome axes, with TopoII required to adjust spatial relationships among DNA segments.
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影响因子:
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影响因子:
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DOI:
10.1073/pnas.1004248107
发表时间:
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影响因子:
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通讯作者:
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