Chromatin: receiver and quarterback for cellular signals.
Chromatin: receiver and quarterback for cellular signals.
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DOI:
10.1016/j.cell.2013.01.017
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发表时间:
2013-02-14
期刊:
影响因子:
64.5
通讯作者:
Dent SY
中科院分区:
文献类型:
--
作者:
Johnson DG;Dent SY
Signal transduction pathways ultimately converge upon sequence-specific DNA binding factors to reprogram gene expression and affect necessary changes in cellular growth or behavior. Transcription factors, in turn, team up with chromatin modifying activities, including enzymes that post-translationally modify histones. Chromatin is also dynamically modified to regulate DNA accessibility for replication and repair. However, chromatin is not simply an endpoint for signaling pathways. Histone modifications can relay signals to other proteins to trigger more immediate responses than can be achieved through altered gene transcription. Such signaling might be especially important to time-urgent processes such as the execution of cell cycle check points, chromosome segregation, or exit from mitosis. In addition, histone modifying enzymes often have multiple non-histone substrates, and coordination of activity towards different targets might direct signals both to and from chromatin.
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