Across TCGA pan-cancer cohorts, PPP1R14C mass-spec protein differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of PPP1R14C’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where PPP1R14C mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types PPP1R14C is over-expressed in tumor, although a few such as LUAD show the opposite, repressed pattern.
HNSC, PDAC, and LUAD are the cancer types where PPP1R14C tumor–normal differential expression is most reproducible.