Across TCGA pan-cancer cohorts, JAK3 mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated JAK3 data layer compared with 23 for mass-spec protein and 6 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher JAK3 mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated JAK3 expression acts as an unfavorable survival marker, although some lineages such as CCRCC and HNSC show a favorable association.
PDAC, GBM, and CCRCC are the cancer types where JAK3 mass-spec protein most reproducibly stratifies survival.