Across TCGA pan-cancer cohorts, FEM1AP1 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of FEM1AP1’s most consistent transcriptional readouts.
The strongest signal is observed in kidney chromophobe (KICH), where FEM1AP1 RNA is repressed in tumor relative to normal tissue. In most cancer types FEM1AP1 is over-expressed in tumor, although a few such as KICH and KIRC show the opposite, repressed pattern.
KICH and KIRC are the cancer types where FEM1AP1 tumor–normal differential expression is most reproducible.