Cohesin: genomic insights into controlling gene transcription and development.

Cohesin: genomic insights into controlling gene transcription and development.
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DOI:
10.1016/j.gde.2011.01.018
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发表时间:
2011-04
影响因子:
4
通讯作者:
Dorsett, Dale
Dorsett, Dale
中科院分区:
生物学2区
文献类型:
--
作者:
Dorsett, Dale

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在过去的十年中,人们发现,粘连蛋白复合物不仅在姐妹染色单体粘连、染色体分离和 DNA 修复中发挥作用,而且还调节基因表达和发育。即使粘连蛋白活性的微小变化也会改变发育的几个方面。全基因组分析表明,粘连蛋白通过多种机制直接调节参与细胞增殖、多能性和分化的基因的转录。人们对这些机制知之甚少,但涉及与 Polycomb 组蛋白协同的部分基因抑制,以及促进增强子和启动子之间以及 CTCF 蛋白结合位点之间的长程循环。
Over the past decade it has emerged that the cohesin protein complex, which functions in sister chromatid cohesion, chromosome segregation and DNA repair, also regulates gene expression and development. Even minor changes in cohesin activity alter several aspects of development. Genome-wide analysis indicates that cohesin directly regulates transcription of genes involved in cell proliferation, pluripotency, and differentiation through multiple mechanisms. These mechanisms are poorly understood, but involve both partial gene repression in concert with Polycomb group proteins, and facilitating long-range looping, both between enhancers and promoters, and between CTCF protein binding sites.
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