Across TCGA pan-cancer cohorts, FAM138E RNA differs between tumor and matched normal tissue in 1 of 18 cancer types tested, making tumor–normal expression one of FAM138E’s most consistent transcriptional readouts.
The strongest signal is observed in bladder urothelial carcinoma (BLCA), where FAM138E RNA is repressed in tumor relative to normal tissue. In most cancer types FAM138E is over-expressed in tumor, although a few such as BLCA show the opposite, repressed pattern.
BLCA are the cancer types where FAM138E tumor–normal differential expression is most reproducible.