Chromatin higher-order structures and gene regulation.

Chromatin higher-order structures and gene regulation.
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DOI:
10.1016/j.gde.2011.01.022
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发表时间:
2011-04
影响因子:
4
通讯作者:
Reinberg, Danny
Reinberg, Danny
中科院分区:
生物学2区
文献类型:
--
作者:
Li, Guohong;Reinberg, Danny

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Genomic DNA in the eukaryotic nucleus is hierarchically packaged by histones into chromatin to fit inside the nucleus. The dynamics of higher-order chromatin compaction play a critical role in transcription and other biological processes inherent to DNA. Many factors, including histone variants, histone modifications, DNA methylation and the binding of non-histone architectural proteins regulate the structure of chromatin. Although the structure of nucleosomes, the fundamental repeating unit of chromatin, is clear, there is still much discussion on the higher-order levels of chromatin structure. In this review, we focus on the recent progress in elucidating the structure of the 30-nm chromatin fiber. We also discuss the structural plasticity/dynamics and epigenetic inheritance of higher-order chromatin and the roles of chromatin higher-order organization in eukaryotic gene regulation.
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