Transcription-associated histone modifications and cryptic transcription.

Transcription-associated histone modifications and cryptic transcription.
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DOI:
10.1016/j.bbagrm.2012.08.008
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发表时间:
2013-01
期刊:
Biochimica et biophysica acta
影响因子:
--
通讯作者:
Workman JL
Workman JL
中科院分区:
其他
文献类型:
--
作者:
Smolle M;Workman JL

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真核生物的基因组被包装成染色质,染色质是一种由DNA和组蛋白组成的高度组织化的结构。所有的核过程都发生在染色质中。DNA或组蛋白的修饰对染色质结构和功能具有根本性影响,从而影响转录、复制或重组等过程。在这篇综述中,我们强调组蛋白修饰与RNA聚合酶II的基因转录,并总结其基因组分布。最后,我们讨论了这些组蛋白修饰的(错误)调节如何干扰编码区的染色质组织,并导致异常的基因内转录的出现。
Eukaryotic genomes are packaged into chromatin, a highly organized structure consisting of DNA and histone proteins. All nuclear processes take place in the context of chromatin. Modifications of either DNA or histone proteins have fundamental effects on chromatin structure and function, and thus influence processes such as transcription, replication or recombination. In this review we highlight histone modifications specifically associated with gene transcription by RNA polymerase II and summarize their genomic distributions. Finally, we discuss how (mis-)regulation of these histone modifications perturbs chromatin organization over coding regions and results in the appearance of aberrant, intragenic transcription.
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