Managing the Steady State Chromatin Landscape by Nucleosome Dynamics.

Managing the Steady State Chromatin Landscape by Nucleosome Dynamics.
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用核小体动力学管理稳定状态的染色质景观。

DOI:
10.1146/annurev-biochem-032620-104508
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发表时间:
2022-06-21
影响因子:
16.6
通讯作者:
--
中科院分区:
生物学1区
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基因调控源于核小体、转录因子和其他染色质蛋白之间结合基因组 DNA 的动态竞争。核小体组装和因子与 DNA 结合的时间尺度决定了任何给定基因座的竞争结果。在这里,我们回顾染色质蛋白的这些特性以及不同因素动态的相互作用如何对基因调控至关重要。我们讨论了大型染色质相关复合物的分子结构、体内蛋白质-DNA复合物的动力学测量和高分辨率图谱如何设定染色质动力学的边界条件,从而建立调节元件稳态行为如何产生的模型。
Gene regulation arises out of dynamic competition between nucleosomes, transcription factors and other chromatin proteins for binding genomic DNA. The timescales of nucleosome assembly and factor binding with DNA determine the outcomes of this competition at any given locus. Here we review how these properties of chromatin proteins and the interplay of dynamics of different factors are critical for gene regulation. We discuss how molecular structures of large chromatin-associated complexes, kinetic measurements and high resolution mapping of protein-DNA complexes in vivo set the boundary conditions for chromatin dynamics, leading to models of how the steady state behaviors of regulatory elements arise.
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