USP39 promotes antiviral defense through post-transcriptional control of RIG-I and stabilization of STING. - Quan, Jiazheng; Zhao, Xibao; Chen, Shaoying; Li, Hongrui; Chen, Wei; Di, Qianqian; Li, Xunwei; Zhao, Jiajing; Wu, Han; Chen, Jin; Xiao, Yue; Wu, Zherui; et al. (PLoS Biology, 2026)