Chikungunya virus non-structural protein nsP3 interacts with Aedes aegypti DEAD-box helicase RM62F
Virusdisease(2021)
摘要
The non-structural proteins (nsPs) of the chikungunya virus (CHIKV) form the virus’s replication complex. They are known to participate in several functions that allow efficient replication of the virus in diverse host systems. One such function is evading the host defense system such as RNA interference (RNAi). Two nsPs of CHIKV, namely, nsP2 and nsP3, were found to suppress the host/vector RNAi machinery and exhibit RNAi suppressor activity. The present study was undertaken to identify interacting partners of CHIKV-nsP3 in Aedes aegypti . We performed pull-down assays with the mass spectrometry approach and showed the interaction of CHIKV-nsP3 with several Aedes proteins. Further co-immunoprecipitation assays revealed that CHIKV-nsP3 interacts with RM62F, a DEAD-box containing RNA known to play roles in multiple gene regulatory processes such as alternative splicing, RNA release, and also is a component of Ago2-RISC complex.
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关键词
Aedes aegypti
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