Interactions between capsid and viral RNA regulate Chikungunya virus translation in a host-specific manner.

Interactions between capsid and viral RNA regulate Chikungunya virus translation in a host-specific manner.
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DOI:
10.1016/j.virol.2021.04.009
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发表时间:
2021-08
期刊:
影响因子:
3.7
通讯作者:
Hardy RW
Hardy RW
中科院分区:
医学3区
文献类型:
--
作者:
Kiser LM;Sokoloski KJ;Hardy RW

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Alphaviruses are positive sense, RNA viruses commonly transmitted by an arthropod vector to a mammalian or avian host. In recent years, a number of the Alphavirus members have reemerged as public health concerns. Transmission from mosquito vector to vertebrate hosts requires an understanding of the interaction between the virus and both vertebrate and insect hosts to develop rational intervention strategies. The current study uncovers a novel role for capsid protein during Chikungunya virus replication whereby the interaction with viral RNA in the E1 coding region regulates protein synthesis processes early in infection. Studies done in both the mammalian and mosquito cells indicate that interactions between viral RNA and capsid protein have functional consequences that are host species specific. Our data support a vertebrate-specific role for capsid:vRNA interaction in temporally regulating viral translation in a manner dependent on the PI3K-AKT-mTOR pathway.
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