Curr Opin Genet Dev. 2007 Apr;17(2):126-31. Epub 2007 Feb 22.

Chromatin remodeling in DNA double-strand break repair.

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Department of Carcinogenesis, Science Park Research Division, MD Anderson Cancer Center, Smithville, TX 78957, USA.

Abstract

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.

PMID:: 17320375; [PubMed - indexed for MEDLINE]

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