Across TCGA pan-cancer cohorts, TUB mass-spec protein differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of TUB’s most consistent transcriptional readouts.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where TUB mass-spec protein is repressed in tumor relative to normal tissue. In most cancer types TUB is over-expressed in tumor, although a few such as CCRCC and HNSC show the opposite, repressed pattern.
CCRCC, HNSC, and LUAD are the cancer types where TUB tumor–normal differential expression is most reproducible.