The Cysteine Protease Domain of Porcine Reproductive and Respiratory Syndrome Virus Nonstructural Protein 2 Possesses Deubiquitinating and Interferon Antagonism Functions

Abstract excerpt

Porcine reproductive and respiratory syndrome (PRRS) virus nonstructural protein 2 (nsp2) contains a cysteine protease domain at its N terminus, which belongs to the ovarian tumor (OTU) protease family. In this study, we demonstrated that the PRRSV nsp2 OTU domain antagonizes the type I interferon induction by interfering with the NF-kappaB signaling pathway. Further analysis revealed that the nsp2 OTU domain...

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