IndraLab
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"Overexpression of USP21 inhibited RNA virus induced RIG-I polyubiquitination and RIG-I-mediated interferon (IFN) signaling, whereas deletion of USP21 resulted in elevated RIG-I polyubiquitination, IRF3 phosphorylation, IFN-alpha and beta production, and antiviral responses in MEFs in response to RNA virus infection."