Across TCGA pan-cancer cohorts, C5AR1 mass-spec protein is linked to patient survival in 6 of 34 cancer types, making it a survival-associated C5AR1 data layer compared with 22 for mass-spec protein and 2 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher C5AR1 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated C5AR1 expression acts as an unfavorable survival marker, although some lineages such as HNSC and LUAD show a favorable association.
PDAC, HNSC, and CCRCC are the cancer types where C5AR1 mass-spec protein most reproducibly stratifies survival.