Viral RNA polymerase as a SUMOylation decoy inhibits RNA quality control to promote potyvirus infection

Potyvirids are the largest group of plant RNA viruses. Pelota, a core component of RNA quality controls (RQC), promotes the degradation of potyvirids’ genomic RNA by recognizing a specific G1-2A6-7 motif. Here we demonstrate that the viral RNA-dependent RNA polymerase, NIb, acts as a SUMOylation dec