Chromatin response to DNA double-strand break damage.

Abstract:

:Manipulation of chromatin, in which genomic DNA is packaged, is a fundamental requirement for all DNA-based metabolic processes in eukayotic cells. Histone variant incorporation, histone post-translational modifications, and ATP-dependent chromatin remodeling are three major strategies for chromatin manipulation, and are relatively well characterized in transcriptional regulation. Emerging lines of evidence indicate that histone variants (H2AX and H2A.Z), histone post-translational modifications (acetylation, phosphorylation, methylation and ubiquitination) and chromatin-remodeling complexes (INO80, SWR1, SWI/SNF, RSC and NuRD) are important and direct players in the DNA double-strand break (DSB) response as well. New studies also reveal that incorporation of histone variants into nucleosomes, histone modifications and ATP-dependent chromatin remodeling are specifically and intimately connected during the DSB damage response. This article summarizes the recent advances in our understanding of the relationship between chromatin modifications and the DSB damage response.

journal_name

Epigenomics

journal_title

Epigenomics

authors

Bao Y

doi

10.2217/epi.11.14

subject

Has Abstract

pub_date

2011-06-01 00:00:00

pages

307-21

issue

3

eissn

1750-1911

issn

1750-192X

journal_volume

3

pub_type

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