Across TCGA pan-cancer cohorts, PBRM1 mass-spec protein is linked to patient survival in 4 of 34 cancer types, making it a survival-associated PBRM1 data layer compared with 23 for mass-spec protein and 9 for mutation status.
The strongest signal is observed in lung squamous cell carcinoma (LSCC), where higher PBRM1 mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated PBRM1 expression acts as an unfavorable survival marker, although some lineages such as LSCC and PDAC show a favorable association.
LSCC, HNSC, and PDAC are the cancer types where PBRM1 mass-spec protein most reproducibly stratifies survival.