The tale of two flaviviruses: subversion of host pathways by RNA shapes in dengue and hepatitis C viral RNA genomes.
The tale of two flaviviruses: subversion of host pathways by RNA shapes in dengue and hepatitis C viral RNA genomes.
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DOI:
10.1016/j.mib.2020.08.007
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发表时间:
2021-03
影响因子:
5.4
通讯作者:
Sarnow P
中科院分区:
文献类型:
--
作者:
Shivaprasad S;Sarnow P
Pathogenic RNA viruses continue to emerge owing to their rapid evolutionary rates. The family of the Flaviviridae contains enveloped, single-stranded, positive-sense RNA viruses that include mosquito borne viruses such as dengue virus and the blood-borne hepatitis C virus. Upon infection, the genomic viral RNA needs to first compete with a sea of host mRNAs for host ribosomes that synthesize the viral proteins. Then, the positive-sense template needs to be amplified and packaged into newly assembled virions. To accomplish these tasks, the virus subverts several biochemical machineries from the host. The participation of specific structures in the viral RNA mediate specific RNA-RNA and RNA-protein interactions that dictate many viral subversion strategies. In this review, we shall focus on the various mechanisms by which RNA elements in the dengue virus and hepatitis C virus untranslated regions aid the viral infectious cycle and contribute to viral fitness.
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