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Chromatin remodeling in DNA double-strand break repair

机译:DNA双链断裂修复中的染色质重塑

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ATP-dependent chromatin remodeling complexes use ATP hydrolysis to remodel nucleosomes and have well-established functions in transcription. However, emerging lines of evidence suggest that chromatin remodeling complexes are important players in DNA double-strand break (DSB) repair as well. The INO80 and SWI2 subfamilies of chromatin remodeling complexes have been found to be recruited to the double-strand lesions and to function directly in both homologous recombination and non-homologous end-joining, the two major conserved DSB repair pathways. Improperly repaired DSBs are implicated in cancer development in higher organisms. Understanding how chromatin remodeling complexes contribute to DSB repair should provide new insights into the mechanisms of carcinogenesis and might suggest new targets for cancer treatment.
机译:ATP依赖的染色质重塑复合物使用ATP水解来重塑核小体,并在转录中具有公认的功能。但是,越来越多的证据表明,染色质重塑复合物也是DNA双链断裂(DSB)修复的重要参与者。已发现染色质重塑复合物的INO80和SWI2亚家族被募集到双链病变,并直接在同源重组和非同源末端连接这两个主要的保守DSB修复途径中起作用。修复不当的DSB与高等生物的癌症发展有关。了解染色质重塑复合物如何促进DSB修复应提供新的见解,以致癌的机制,并可能建议癌症治疗的新目标。

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