DUB Inhibitor XI

A cell-permeable dichloropyridinylthio-thiophenecarboxamide that is more potent than DUB Inhibitor VI, P22077 (Cat. No. 662142) as a dual inhibitor against USP7 (IC50 = 0.42 vs. 8.0 µM with respective inhibitor) and USP47 (IC50 = 1.0 vs. 8.7 µM with respective inhibitor), while exhibiting comparable cytotoxicity toward HCT-116 (CC50 = 7.6 vs. 7.8 µM with respective inhibitor) by upregulating cellular p21 and p53 protein levels in a time-dependent manner. Displays little potency against USP2, USP5, USP8, USP21 USP28, cathepsin B, caspase-3, calpain-1, or 20S proteasome chymotrypsin-like activity (IC50 >31.6 µM).