Journal
ACS CHEMICAL BIOLOGY
Volume 11, Issue 12, Pages 3268-3272Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acschembio.6b00766
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Funding
- MISSION Therapeutics Ltd.
- Engineering and Physical Sciences Research Council [EP/J021199/1, 1234732] Funding Source: researchfish
- EPSRC [EP/J021199/1] Funding Source: UKRI
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Deubiquitinating enzymes play an important role in a plethora of therapeutically relevant processes and are emerging as pioneering drug targets. Herein, we present a novel probe, Ubiquitin Specific Protease (USP) inhibitor, alongside an alkyne-tagged activity-based probe analogue. Activity-based proteome profiling identified 12 USPs, including USP4, USP16, and USP33, as inhibitor targets using submicromolar probe concentrations. This represents the first intact cell activity based profiling of deubiquitinating enzymes. Further analysis demonstrated functional inhibition of USP33 and identified a synergistic relationship in combination with ATR inhibition, consistent with USP4 inhibition.
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