Across TCGA pan-cancer cohorts, RNU105B RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of RNU105B’s most consistent transcriptional readouts.
The strongest signal is observed in kidney chromophobe (KICH), where RNU105B RNA is repressed in tumor relative to normal tissue. In most cancer types RNU105B is over-expressed in tumor, although a few such as KICH show the opposite, repressed pattern.
KICH and LUAD are the cancer types where RNU105B tumor–normal differential expression is most reproducible.