Across TCGA pan-cancer cohorts, PRIM1 mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated PRIM1 data layer compared with 24 for mass-spec protein and 3 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher PRIM1 mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated PRIM1 expression acts as an unfavorable survival marker, although some lineages such as LSCC and UCEC show a favorable association.
PDAC, LSCC, and UCEC are the cancer types where PRIM1 mass-spec protein most reproducibly stratifies survival.