Regulation of higher-order chromatin structures by nucleosome-remodelling factors - PubMed (original) (raw)

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Regulation of higher-order chromatin structures by nucleosome-remodelling factors

Patrick D Varga-Weisz et al. Curr Opin Genet Dev. 2006 Apr.

Abstract

Nucleosome-remodelling factors are key facilitators of chromatin dynamics. At the level of single nucleosomes, they are involved in nucleosome-repositioning, altering histone-DNA interactions, disassembly of nucleosomes, and the exchange of histones with variants of different properties. The fundamental nature of chromatin dictates that nucleosome-remodelling affects all aspects of eukaryotic DNA metabolism, but much less is known about the functional interactions of nucleosome-remodelling factors with folded chromatin fibres. Because remodelling machines are abundant constituents of eukaryotic nuclei and, therefore, have ample potential to interact with chromatin, they might also affect higher-order chromatin architecture. Recent observations support roles for nucleosome-remodelling factors at the supra-nucleosomal level.

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