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MAPK14 activates USP21. 1 / 1
1 |

"In this study, we found that USP21 is an important deubiquitinating enzyme for STING and that it negatively regulates the DNA virus-induced production of type I interferons by hydrolyzing K27/63-linked polyubiquitin chain on STING. HSV-1 infection recruited USP21 to STING at late stage by p38-mediated phosphorylation of USP21 at Ser538. I"