Three-dimensional structure of a flavivirus dumbbell RNA reveals molecular details of an RNA regulator of replication.
Three-dimensional structure of a flavivirus dumbbell RNA reveals molecular details of an RNA regulator of replication.
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DOI:
10.1093/nar/gkab462
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发表时间:
2021-07-09
影响因子:
14.9
通讯作者:
Kieft JS
中科院分区:
文献类型:
--
作者:
Akiyama BM;Graham ME;O Donoghue Z;Beckham JD;Kieft JS
Mosquito-borne flaviviruses (MBFVs) including dengue, West Nile, yellow fever, and Zika viruses have an RNA genome encoding one open reading frame flanked by 5′ and 3′ untranslated regions (UTRs). The 3′ UTRs of MBFVs contain regions of high sequence conservation in structured RNA elements known as dumbbells (DBs). DBs regulate translation and replication of the viral RNA genome, functions proposed to depend on the formation of an RNA pseudoknot. To understand how DB structure provides this function, we solved the x-ray crystal structure of the Donggang virus DB to 2.1Å resolution and used structural modeling to reveal the details of its three-dimensional fold. The structure confirmed the predicted pseudoknot and molecular modeling revealed how conserved sequences form a four-way junction that appears to stabilize the pseudoknot. Single-molecule FRET suggests that the DB pseudoknot is a stable element that can regulate the switch between translation and replication during the viral lifecycle by modulating long-range RNA conformational changes.
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影响因子:
16.6
作者:
Hengesbach, Martin;Kim, Nak-Kyoon;Feigon, Juli;Stone, Michael D.
通讯作者:
Stone, Michael 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:
10.1107/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
影响因子:
3.7
作者:
Alvarez, DE;Ezcurra, ALD;Gamarnik, AV
通讯作者:
Gamarnik, AV
影响因子:
3.7
作者:
Alvarez, Diego E.;Filomatori, Claudia V.;Gamarnik, Andrea V.
通讯作者:
Gamarnik, Andrea V.