DCLK1 and renal cell carcinoma: Western blot analysis demonstrated no notable decrease in total DCLK1 protein expression in any of the RCC cell lines (Figure 2A), but in the ACHN cell line, a decrease in the 82 kDa isoform (Uniprot O15074-2; long-α) was accompanied by a proportional increase in the 52 kDa isoform (Uniprot O15075-4; long-β) (Figure 2A and Figure S3C).