Dynamics of epigenetic regulation at the single-cell level.
Dynamics of epigenetic regulation at the single-cell level.
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在单细胞水平上表观遗传调节的动力学。
DOI:
10.1126/science.aab2956
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发表时间:
2016-02-12
期刊:
影响因子:
--
通讯作者:
Elowitz MB
中科院分区:
文献类型:
--
作者:
Bintu L;Yong J;Antebi YE;McCue K;Kazuki Y;Uno N;Oshimura M;Elowitz MB
Chromatin regulators play a major role in establishing and maintaining gene expression states. Yet how they control gene expression in single cells, quantitatively and over time, remains unclear. We used time-lapse microscopy to analyze the dynamic effects of four silencers associated with diverse modifications: DNA methylation, histone deacetylation, and histone methylation. For all regulators, silencing and reactivation occurred in all-or-none events, enabling the regulators to modulate the fraction of cells silenced rather than the amount of gene expression. These dynamics could be described by a three-state model involving stochastic transitions between active, reversibly silent, and irreversibly silent states. Through their individual transition rates, these regulators operate over different time scales and generate distinct types of epigenetic memory. Our results provide a framework for understanding and engineering mammalian chromatin regulation and epigenetic memory.
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影响因子:
12.3
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Urrutia R
通讯作者:
Urrutia R
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作者:
Stewart-Ornstein, Jacob;Nelson, Christopher;DeRisi, Joe;Weissman, Jonathan S.;El-Samad, Hana
通讯作者:
El-Samad, Hana
影响因子:
46.9
作者:
Fussenegger, M;Morris, RP;Bailey, JE
通讯作者:
Bailey, JE