USP29 and viral infectious disease: Unlike USP14, USP27x directly interacts with cGAS and releases the K48‐linked polyubiquitin chains during viral infection.[208] Recently, a study reported that USP29 interacts with cGAS, hydrolyzes K48‐linked polyubiquitin chains on cGAS, and stabilizes cGAS in uninfected cells, or after HSV‐1 stimulation.[209] Following HSV‐1 infection, USP29 knockout mice were shown to be hypersensitive to HSV‐1 and produced less type I IFNs and proinflammatory cytokines than the wildtype control.