Spt4/5 stimulates transcription elongation through the RNA polymerase clamp coiled-coil motif.
Spt4/5 stimulates transcription elongation through the RNA polymerase clamp coiled-coil motif.
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DOI:
10.1093/nar/gkq135
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发表时间:
2010-07
影响因子:
14.9
通讯作者:
Werner F
中科院分区:
文献类型:
--
作者:
Hirtreiter A;Damsma GE;Cheung AC;Klose D;Grohmann D;Vojnic E;Martin AC;Cramer P;Werner F
Spt5 is the only known RNA polymerase-associated factor that is conserved in all three domains of life. We have solved the structure of the Methanococcus jannaschii Spt4/5 complex by X-ray crystallography, and characterized its function and interaction with the archaeal RNAP in a wholly recombinant in vitro transcription system. Archaeal Spt4 and Spt5 form a stable complex that associates with RNAP independently of the DNA–RNA scaffold of the elongation complex. The association of Spt4/5 with RNAP results in a stimulation of transcription processivity, both in the absence and the presence of the non-template strand. A domain deletion analysis reveals the molecular anatomy of Spt4/5—the Spt5 Nus-G N-terminal (NGN) domain is the effector domain of the complex that both mediates the interaction with RNAP and is essential for its elongation activity. Using a mutagenesis approach, we have identified a hydrophobic pocket on the Spt5 NGN domain as binding site for RNAP, and reciprocally the RNAP clamp coiled-coil motif as binding site for Spt4/5.
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影响因子:
4.1
作者:
Grohmann, Dina;Hirtreiter, Angela;Werner, Finn
通讯作者:
Werner, Finn
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1107/s0907444905007894
发表时间:
2005-07
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Afonine PV;Grosse-Kunstleve RW;Adams PD
通讯作者:
Adams PD
影响因子:
5.3
作者:
Lindstrom, DL;Squazzo, SL;Hartzog, GA
通讯作者:
Hartzog, GA
影响因子:
14.9
作者:
Andrecka, Joanna;Treutlein, Barbara;Michaelis, Jens
通讯作者:
Michaelis, Jens