Across TCGA pan-cancer cohorts, C2orf69 mass-spec protein differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of C2orf69’s most consistent transcriptional readouts.
The strongest signal is observed in lung squamous cell carcinoma (LSCC), where C2orf69 mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types C2orf69 is over-expressed in tumor, although a few such as PDAC and CCRCC show the opposite, repressed pattern.
LSCC, PDAC, and CCRCC are the cancer types where C2orf69 tumor–normal differential expression is most reproducible.