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Mi-2/NuRD complex making inroads into DNA-damage response pathway.

机译:MI-2 / NURD复合体进入DNA损伤响应途径。

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摘要

In eukaryotic cells, packaging of DNA into highly condensed chromatin presents a significant obstacle to DNA-based processes. Cells use two major strategies including histone modifications and ATP-dependent chromatin remodeling to alter chromatin structure that allows protein factors to gain access to nucleosomal DNA. Beyond their wellestablished role in transcription, histone modifications and several classes of ATP-dependent chromatin-remodeling complex have been functionally linked to efficient DNA repair. Mi-2/nucleosome remodeling and histone deacetylation (NuRD) complex uniquely possess both nucleosome remodeling and histone deacetylation activities, which play a vital role in regulating transcription. However, the role of the Mi-2/NuRD complex in DNA damage response remains largely unexplored until now. Recent findings reveal that metastasis-associated protein 1 (MTA1), an integral component of the Mi-2/NuRD complex, has successfully made inroads into DNA damage response pathway, and thus, links two previously unconnected Mi-2/NuRD complex and DNA damage response research areas. In this review, we summarize recent progress concerning the functions of histone modifications and chromatin remodeling in DNA repair, and discuss new role of Mi-2/NuRD complex in DNA damage response.
机译:在真核细胞中,DNA分成高浓缩染色质的包装呈现了基于DNA的方法的显着障碍。细胞使用两种主要策略,包括组蛋白修饰和ATP依赖性染色质重塑,以改变染色质结构,使蛋白质因素能够获得核致组DNA。除了转录中的绝对角色之外,组蛋白修饰和几种ATP依赖性染色质复合物的重组已经在功能上与有效的DNA修复有效。 MI-2 /核心重塑和组蛋白脱乙酰化(NURD)复合物独特地具有核心重塑和组蛋白脱乙酰化活性,这在调节转录方面发挥着至关重要的作用。然而,在DNA损伤反应中的MI-2 / NURD复合物的作用仍然很大程度上是未开发的。最近的发现表明,转移相关蛋白1(MTA1)是MI-2 / NURD复合物的一体组分,已成功地进入DNA损伤响应途径,从而将两个先前未连通的MI-2 / NURD复合物和DNA联系起来损伤响应研究领域。在本综述中,我们总结了DNA修复中组蛋白修饰和染色质重塑的功能的最新进展,并讨论了在DNA损伤反应中MI-2 / NURD复合物的新作用。

著录项

  • 来源
    《Cell cycle》 |2010年第11期|共9页
  • 作者

    Kumar R;

  • 作者单位

    Department of Biochemistry and Molecular Biology The George Washington University Medical Center Washington DC USA.;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 细胞生物学;
  • 关键词

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