IndraLab

Statements


USP15 deubiquitinates DDX58. 5 / 5
1 | 4

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"USP15 specifically deubiquitinates RIG-I by direct physical association and does not interact with other signaling mediators like interferon-beta promoter stimulator 1 (IPS-1), TRAF3, and TBK1 in HEK293 cells."

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"Conversely, USP15 and USP4 deubiquitinate TRIM25 and RIG-I, respectively, to stabilize the proteins."

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"To further confirm USP15 deubiquitinates polyubiquitination of RIG-I, USP15 siRNAs were transfected into HEK293T cells to knockdown endogenous USP15 expression."

"USP15 specifically removed lysine 63-linked polyubiquitin chains from RIG-I among the essential components in RIG-I-like receptor-dependent pathway."

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"Coimmunoprecipitation analysis showed that compared with control siRNA transfected cells, knockdown of USP15 substantially increased RIG-I polyubiquitination in WT ubiquitin and mutant Lys63 transfected cells (XREF_FIG)."