TP53 and cancer: However, our analysis did not support this in the majority of cancer types: out of 14 cancer types, only 3 of them had a stronger TP53 phenocopy score in USP28-amplified samples than in USP28-deleted samples (Fig. 2e); this was the case for none of the cancer types with common USP28 phenocopying (BLCA, STAD, LIHC, BRCA and LUAD).