Across TCGA pan-cancer cohorts, TTTY4B RNA differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of TTTY4B’s most consistent transcriptional readouts.
The strongest signal is observed in kidney renal papillary cell carcinoma (KIRP), where TTTY4B RNA is repressed in tumor relative to normal tissue. In most cancer types TTTY4B is over-expressed in tumor, although a few such as KIRP and KICH show the opposite, repressed pattern.
KIRP, KICH, and KIRC are the cancer types where TTTY4B tumor–normal differential expression is most reproducible.