Conservative transcription in three steps visualized in a double-stranded RNA virus.
Conservative transcription in three steps visualized in a double-stranded RNA virus.
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双链 RNA 病毒中保守转录的三步可视化
DOI:
10.1038/s41594-019-0320-0
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发表时间:
2019-11
影响因子:
16.8
通讯作者:
Zhou ZH
中科院分区:
文献类型:
--
作者:
Cui Y;Zhang Y;Zhou K;Sun J;Zhou ZH
Endogenous RNA transcription characterizes double-stranded RNA (dsRNA) viruses in theReoviridae, a family that is exemplified by its simple, single-shelled member cytoplasmic polyhedrosis virus (CPV). Because of the lack of in situ structures of the intermediate stages of RNA-dependent RNA polymerase (RdRp) during transcription, it is poorly understood how RdRp detects environmental cues and internal transcriptional states to initiate and coordinate repeated cycles of transcript production inside the capsid. Here, we captured five high-resolution (2.8–3.5 Å) RdRp–RNA in situ structures—representing quiescent, initiation, early elongation, elongation and abortive states—under seven experimental conditions of CPV. We observed the ‘Y’-form initial RNA fork in the initiation state and the complete transcription bubble in the elongation state. These structures reveal that de novo RNA transcription involves three major conformational changes during state transitions. Our results support an ouroboros model for endogenous conservative transcription in dsRNA viruses.
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影响因子:
3.8
作者:
Hagiwara, K;Rao, SJ;Carner, GR
通讯作者:
Carner, GR
影响因子:
48
作者:
Kucukelbir, Alp;Sigworth, Fred J.;Tagare, Hemant D.
通讯作者:
Tagare, Hemant D.
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:
10.1073/pnas.75.3.1086
发表时间:
1978-01-01
影响因子:
11.1
作者:
FURUICHI, Y
通讯作者:
FURUICHI, Y
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH