Across TCGA pan-cancer cohorts, H3-2 RNA differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of H3-2’s most consistent transcriptional readouts.
The strongest signal is observed in kidney renal clear cell carcinoma (KIRC), where H3-2 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types H3-2 is over-expressed in tumor, although a few such as UCEC and PRAD show the opposite, repressed pattern.
KIRC, UCEC, and PRAD are the cancer types where H3-2 tumor–normal differential expression is most reproducible.