(A) In vitro biochemical selectivity of XL series USP7 inhibitors. Compounds XL188, XL203C, and XL177A were added to in vitro deubiquitination assays at concentrations of 10, 10, and 1 μM, respectively.
(B) Scatterplot representation of protein abundance changes after USP7 inhibitor treatment. Orange points represent proteins that pass the threshold of >1.5-fold change and p < 0.0001. p values and log2FC values were calculated using a moderated t test as implemented in limma. See Data S1 in the Supplemental Information for matching tables.
(C) Rank-order representation of protein abundance changes after USP7 inhibition. Proteins were ranked in ascending order using p value-adjusted log2 fold change as a score (Pi score = −log10(p value) × log2FC). Thresholds same as in (B).