Sections from 2 to 4 different blocks for each case of ccRCC, everyone comprising normal peritumoral renal parenchyma, were immunostained with H3AcK18, H3AcK14, and KAT3B-p300 antibodies, and the results were reported as the mean percentage of stained nuclei. This evidence concerns the gene EP300 and nonpapillary renal cell carcinoma.