APOBEC3B expression also had the strongest correlation with mutation counts in RCC as opposed to other cancer categories; however, such correlations for APOBEC3B were somewhat weaker and less significant (ρ ≤ 0.86, padj ≥ 0.16) than those for APOBEC3A (data not shown). This evidence concerns the gene APOBEC3B and renal cell carcinoma.