Across TCGA pan-cancer cohorts, PEX6 mass-spec protein differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of PEX6’s most consistent transcriptional readouts.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where PEX6 mass-spec protein is repressed in tumor relative to normal tissue. In most cancer types PEX6 is over-expressed in tumor, although a few such as CCRCC and LUAD show the opposite, repressed pattern.
CCRCC, LUAD, and HNSC are the cancer types where PEX6 tumor–normal differential expression is most reproducible.