Across TCGA pan-cancer cohorts, ATP8B4 RNA differs between tumor and matched normal tissue in 15 of 18 cancer types tested, making tumor–normal expression one of ATP8B4’s most consistent transcriptional readouts.
The strongest signal is observed in bladder urothelial carcinoma (BLCA), where ATP8B4 RNA is repressed in tumor relative to normal tissue. In most cancer types ATP8B4 is over-expressed in tumor, although a few such as BLCA and COAD show the opposite, repressed pattern.
BLCA, COAD, and UCEC are the cancer types where ATP8B4 tumor–normal differential expression is most reproducible.
RNA tumor vs normal associations by lineage
Ranked by sampling consensus. Fold-change is the tumor-versus-normal difference in ATP8B4 RNA (log2); positive values indicate higher expression in tumor. p-values are from the differential-expression test.