Across TCGA pan-cancer cohorts, E4F1 mass-spec protein is linked to patient survival in 4 of 34 cancer types, making it a survival-associated E4F1 data layer compared with 23 for mass-spec protein and 9 for mutation status.
The strongest signal is observed in lung adenocarcinoma (LUAD), where higher E4F1 mass-spec protein is associated with better overall survival. In most high-consensus cancer types, elevated E4F1 expression acts as an unfavorable survival marker, although some lineages such as LUAD and CCRCC show a favorable association.
LUAD, PDAC, and CCRCC are the cancer types where E4F1 mass-spec protein most reproducibly stratifies survival.