Across TCGA pan-cancer cohorts, KCNMA1-AS1 RNA differs between tumor and matched normal tissue in 6 of 18 cancer types tested, making tumor–normal expression one of KCNMA1-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in kidney renal clear cell carcinoma (KIRC), where KCNMA1-AS1 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types KCNMA1-AS1 is over-expressed in tumor, although a few such as COAD and STAD show the opposite, repressed pattern.
KIRC, COAD, and STAD are the cancer types where KCNMA1-AS1 tumor–normal differential expression is most reproducible.