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  2. Ubiquitin carboxyl-terminal hydrolase 27

Ubiquitin carboxyl-terminal hydrolase 27

Definition:

Deubiquitinase involved in innate antiviral immunity by mediating deubiquitination of CGAS and RIGI. Negatively regulates RIGI by mediating 'Lys-63'-linked deubiquitination of RIGI, inhibiting type I interferon signaling. Also regulates 'Lys-63'-linked ubiquitination level of MDA5/IFIH1. Acts as a positive regulator of the cGAS-STING pathway by catalyzing 'Lys-48'-linked deubiquitination of CGAS, thereby promoting its stabilization. Can reduce the levels of BCL2L11/BIM ubiquitination and stabilize BCL2L11 in response to the RAF-MAPK-degradation signal (By similarity). By acting on BCL2L11 levels, may counteract the anti-apoptotic effects of MAPK activity (By similarity).

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