Across TCGA pan-cancer cohorts, E2F3 mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated E2F3 data layer compared with 22 for mass-spec protein and 4 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher E2F3 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated E2F3 expression acts as an unfavorable survival marker, although some lineages such as LSCC and LUAD show a favorable association.
HNSC, LSCC, and LUAD are the cancer types where E2F3 mass-spec protein most reproducibly stratifies survival.