TFIIE orchestrates the recruitment of the TFIIH kinase module at promoter before release during transcription

被引:38
作者
Compe, Emmanuel [1 ]
Genes, Carlos M. [1 ]
Braun, Cathy [1 ]
Coin, Frederic [1 ]
Egly, Jean-Marc [1 ]
机构
[1] Univ Strasbourg, INSERM, CNRS, Dept Funct Genom & Canc,IGBMC, BP 163, F-67404 Illkirch Graffenstaden, Cu Strasbourg, France
基金
新加坡国家研究基金会;
关键词
RNA-POLYMERASE-II; NUCLEOTIDE-EXCISION-REPAIR; PREINITIATION COMPLEX; XERODERMA-PIGMENTOSUM; INITIATION COMPLEX; DISTINCT ROLES; DNA; TRICHOTHIODYSTROPHY; ELONGATION; PHOSPHORYLATION;
D O I
10.1038/s41467-019-10131-1
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In eukaryotes, the general transcription factors TFIIE and TFIIH assemble at the transcription start site with RNA Polymerase II. However, the mechanism by which these transcription factors incorporate the preinitiation complex and coordinate their action during RNA polymerase II transcription remains elusive. Here we show that the TFIlE alpha and TFIIE beta subunits anchor the TFIIH kinase module (CAK) within the preinitiation complex. In addition, we show that while RNA polymerase II phosphorylation and DNA opening occur, CAK and TFIlE alpha are released from the promoter. This dissociation is impeded by either ATP-gamma S or CDK7 inhibitor THZ1, but still occurs when XPB activity is abrogated. Finally, we show that the Core-TFIIH and TFIIE beta are subsequently removed, while elongation factors such as DSIF are recruited. Remarkably, these early transcriptional events are affected by TFIIE and TFIIH mutations associated with the developmental disorder, trichothiodystrophy.
引用
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页数:14
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