IRES-targeting small molecule inhibits enterovirus 71 replication via allosteric stabilization of a ternary complex.
IRES-targeting small molecule inhibits enterovirus 71 replication via allosteric stabilization of a ternary complex.
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DOI:
10.1038/s41467-020-18594-3
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发表时间:
2020-09-22
影响因子:
16.6
通讯作者:
Tolbert BS
中科院分区:
文献类型:
--
作者:
Davila-Calderon J;Patwardhan NN;Chiu LY;Sugarman A;Cai Z;Penutmutchu SR;Li ML;Brewer G;Hargrove AE;Tolbert BS
Enterovirus 71 (EV71) poses serious threats to human health, particularly in Southeast Asia, and no drugs or vaccines are available. Previous work identified the stem loop II structure of the EV71 internal ribosomal entry site as vital to viral translation and a potential target. After screening an RNA-biased library using a peptide-displacement assay, we identify DMA-135 as a dose-dependent inhibitor of viral translation and replication with no significant toxicity in cell-based studies. Structural, biophysical, and biochemical characterization support an allosteric mechanism in which DMA-135 induces a conformational change in the RNA structure that stabilizes a ternary complex with the AUF1 protein, thus repressing translation. This mechanism is supported by pull-down experiments in cell culture. These detailed studies establish enterovirus RNA structures as promising drug targets while revealing an approach and mechanism of action that should be broadly applicable to functional RNA targeting. Human enterovirus 71 (EV71) contains an internal ribosome entry site (IRES) that promotes translation of viral RNA. Here the authors show that an antiviral small molecule DMA-135 binds to the EV71 IRES RNA, inducing conformational change and stabilizing a ternary complex to repress translation.
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影响因子:
5.4
作者:
Lin, Jing-Yi;Shih, Shin-Ru;Li, Mei-Ling
通讯作者:
Li, Mei-Ling
影响因子:
5.5
作者:
Salomon-Ferrer, Romelia;Goetz, Andreas W.;Walker, Ross C.
通讯作者:
Walker, Ross C.
影响因子:
3.7
作者:
Lin J;Chang YJ;Yang WB;Yu AL;Wong CH
通讯作者:
Wong CH
DOI:
10.2807/1560-7917.es.2018.23.46.1800590
发表时间:
2018-11
期刊:
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
影响因子:
--
作者:
Nhan LNT;Hong NTT;Nhu LNT;Nguyet LA;Ny NTH;Thanh TT;Han DDK;Van HMT;Thwaites CL;Hien TT;Qui PT;Quang PV;Minh NNQ;van Doorn HR;Khanh TH;Chau NVV;Thwaites G;Hung NT;Tan LV
通讯作者:
Tan LV
影响因子:
14.9
作者:
Lin JY;Li ML;Shih SR
通讯作者:
Shih SR