CDK5 and colorectal carcinoma: The CNV of the Cdk5 gene was strongly correlated (r = 0.55, p = 7.16 × 10−7) to Cdk5 expression levels in tumor tissue (Figure 3H) and also in a panel of 63 CRC cell lines (r = 0.54, p = 4.6 × 10−6) (Broad Institute Cancer Cell Line Encyclopedia) (Figure 3I).