(a,b) Immunoblot analysis using HA-specific antibody
(a) or antibodies to USP1, USP8, USP7, CYLD, USP5, USP14, UCH-L3 and UCH-L1
(b) of HEK293T cells that were treated with ML323 (0.5, 5 or 50 μM)
or DMSO in the presence of 100 μM cisplatin, lysed, labeled with HA-Ub-VME and
separated by SDS-PAGE. α-tubulin served as a loading control. The full immunoblot
gels for this figure are shown in Supplementary Figure 13.