Structural basis of transcription initiation.

Structural basis of transcription initiation.
复制标题

DOI:
10.1126/science.1227786
复制
发表时间:
2012-11-23
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Ebright RH
Ebright RH
中科院分区:
其他
文献类型:
--
作者:
Zhang Y;Feng Y;Chatterjee S;Tuske S;Ho MX;Arnold E;Ebright RH

文献摘要

参考文献

被引文献

相似文献

在转录起始期间,RNA聚合酶(RNAP)结合并解旋启动子DNA以形成RNAP-启动子开放复合物。我们已经确定了功能性转录起始复合物的晶体结构,其包含嗜热栖热菌RNA聚合酶,σA和对应于RNAP启动子开放复合物的转录泡和下游dsDNA的启动子DNA片段。结构表明,σ通过相互作用识别-10元件和n-10元件,包括解堆叠和插入三个DNA碱基的口袋,RNAP通过相互作用识别−4/+2区域,包括解堆叠和插入+2碱基的口袋。这些结构进一步表明,σ和模板链ssDNA之间的相互作用预组织模板链ssDNA以接合RNAP活性中心。
During transcription initiation, RNA polymerase (RNAP) binds and unwinds promoter DNA to form an RNAP-promoter open complex. We have determined crystal structures at 2.9 and 3.0 Å resolution of functional transcription initiation complexes comprising Thermus thermophilus RNA polymerase, σA, and a promoter DNA fragment corresponding to the transcription bubble and downstream dsDNA of the RNAP-promoter open complex. The structures show that σ recognizes the -10 element and discriminator element through interactions that include the unstacking and insertion into pockets of three DNA bases, and that RNAP recognizes the −4/+2 region through interactions that include the unstacking and insertion into a pocket of the +2 base. The structures further show that interactions between σ and template-strand ssDNA pre-organize template-strand ssDNA to engage the RNAP active center.
DOI: 10.1016/j.cell.2011.10.041
发表时间: 2011-12-09
期刊: Cell
影响因子: 64.5
作者:
Feklistov A;Darst SA
通讯作者: Darst SA
DOI: 10.1038/nsmb.2334
发表时间: 2012-08
影响因子: 16.8
作者:
Gruenberg, Sebastian;Warfield, Linda;Hahn, Steven
通讯作者: Hahn, Steven
DOI: 10.1016/j.molcel.2006.06.010
发表时间: 2006-07-07
期刊: MOLECULAR CELL
影响因子: 16
作者:
Feklistov, Andrey;Barinova, Nataliya;Kulbachinskiy, Andrey
通讯作者: Kulbachinskiy, Andrey
DOI: 10.1074/jbc.m111.247080
发表时间: 2011-06-24
影响因子: 4.8
作者:
Mekler, Vladimir;Minakhin, Leonid;Severinov, Konstantin
通讯作者: Severinov, Konstantin
DOI: 10.1038/emboj.2011.396
发表时间: 2011-11-04
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Cheung, Alan C. M.;Sainsbury, Sarah;Cramer, Patrick
通讯作者: Cramer, Patrick