Across TCGA pan-cancer cohorts, PCCB mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated PCCB data layer compared with 20 for mass-spec protein and 4 for mutation status.
The strongest signal is observed in colon adenocarcinoma (COAD), where higher PCCB mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated PCCB expression acts as an unfavorable survival marker, although some lineages such as COAD and PDAC show a favorable association.
COAD, UCEC, and PDAC are the cancer types where PCCB mass-spec protein most reproducibly stratifies survival.