Taf2 mediates DNA binding of Taf14.

Taf2 mediates DNA binding of Taf14.
复制标题

DOI:
10.1038/s41467-022-30937-w
复制
发表时间:
2022-06-08
影响因子:
16.6
通讯作者:
--
中科院分区:
综合性期刊1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

酵母菌一般转录因子TFIID复合物的组装和功能需要其TAF14和TAF2亚基之间的特定接触,但是,这些接触的机制尚不清楚。在这里,我们确定了TAF14的Yeats和et域与TAF2的C末端结合的分子和结构基础,并确定了连接两个域的接头区域的独特DNA结合活性。我们表明,在没有配体的情况下,TAF14的接头区域被周围域遮住,因此TAF14的DNA结合函数被自抑制。 TAF2的结合促进了TAF14中的构象重排,从而释放了连接器,以与DNA和核小体接合。遗传在体内数据表明,TAF14与TAF2和DNA的关联对于转录调节至关重要。我们的发现为破译单个TFIID亚基在介导基因转录中的作用提供了基础。 在这里,作者报告说,酵母TFIID复合物的TAF2和TAF14亚基相互作用并介导与染色质的结合。 TAF2与TAF14的结合促进了TAF14中的构象重排,从而导致接头区域释放与核小体接合,并且它们与DNA的关联对于转录调节至关重要。
The assembly and function of the yeast general transcription factor TFIID complex requires specific contacts between its Taf14 and Taf2 subunits, however, the mechanism underlying these contacts remains unclear. Here, we determined the molecular and structural basis by which the YEATS and ET domains of Taf14 bind to the C-terminal tail of Taf2 and identified a unique DNA-binding activity of the linker region connecting the two domains. We show that in the absence of ligands the linker region of Taf14 is occluded by the surrounding domains, and therefore the DNA binding function of Taf14 is autoinhibited. Binding of Taf2 promotes a conformational rearrangement in Taf14, resulting in a release of the linker for the engagement with DNA and the nucleosome. Genetic in vivo data indicate that the association of Taf14 with both Taf2 and DNA is essential for transcriptional regulation. Our findings provide a basis for deciphering the role of individual TFIID subunits in mediating gene transcription. Here the authors report that the Taf2 and Taf14 subunits of the yeast TFIID complex interact and mediate binding to chromatin. Binding of Taf2 to Taf14 promotes a conformational rearrangement in Taf14, resulting in a release of the linker region for the engagement with the nucleosome and their association with DNA is essential for transcriptional regulation.
DOI: 10.1038/s41467-017-01598-x
发表时间: 2017-11-14
影响因子: 16.6
作者:
Gatchalian J;Wang X;Ikebe J;Cox KL;Tencer AH;Zhang Y;Burge NL;Di L;Gibson MD;Musselman CA;Poirier MG;Kono H;Hayes JJ;Kutateladze TG
通讯作者: Kutateladze TG
DOI: 10.1016/j.cell.2016.08.050
发表时间: 2016-09-08
期刊: Cell
影响因子: 64.5
作者:
Robinson PJ;Trnka MJ;Bushnell DA;Davis RE;Mattei PJ;Burlingame AL;Kornberg RD
通讯作者: Kornberg RD
DOI: 10.1016/j.celrep.2013.12.021
发表时间: 2014-01-30
期刊: Cell reports
影响因子: 8.8
作者:
Klein BJ;Piao L;Xi Y;Rincon-Arano H;Rothbart SB;Peng D;Wen H;Larson C;Zhang X;Zheng X;Cortazar MA;Peña PV;Mangan A;Bentley DL;Strahl BD;Groudine M;Li W;Shi X;Kutateladze TG
通讯作者: Kutateladze TG
DOI: 10.1073/pnas.92.18.8224
发表时间: 1995-08-29
影响因子: 11.1
作者:
POON, D;BAI, Y;WEIL, PA
通讯作者: WEIL, PA