Using data from the Clinical Proteomic Tumor Analysis Consortium (CPTAC) and the Cancer Genome Atlas (TCGA), we find that BMAL1 expression is higher in samples collected from ccRCC tumor biopsies than it is in non-tumor kidney tissue, whereas BMAL1 expression in several other tumor types is either reduced or unchanged from normal samples of the same tissue type (Fig. 1C and Supplementary Fig. S1). Here, BMAL1 is linked to nonpapillary renal cell carcinoma.