Origins and activity of the Mediator complex.

Origins and activity of the Mediator complex.
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DOI:
10.1016/j.semcdb.2011.07.021
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发表时间:
2011-09
影响因子:
7.3
通讯作者:
Conaway, Joan Weliky
Conaway, Joan Weliky
中科院分区:
生物学2区
文献类型:
--
作者:
Conaway, Ronald C.;Conaway, Joan Weliky

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The Mediator is a large, multisubunit RNA polymerase II transcriptional regulator that was first identified in Saccharomyces cerevisiae as a factor required for responsiveness of Pol II and the general initiation factors to DNA binding transactivators. Since its discovery in yeast, Mediator has been shown to be an integral and highly evolutionarily conserved component of the Pol II transcriptional machinery with critical roles in multiple stages of transcription, from regulation of assembly of the Pol II initiation complex to regulation of Pol II elongation. Here we provide a brief overview of the evolutionary origins of Mediator, its subunit composition, and its remarkably diverse collection of activities in Pol II transcription.
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