Across TCGA pan-cancer cohorts, FOS mass-spec protein is linked to patient survival in 4 of 34 cancer types, making it a survival-associated FOS data layer compared with 20 for mass-spec protein and 6 for mutation status.
The strongest signal is observed in lung adenocarcinoma (LUAD), where higher FOS mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated FOS expression acts as an unfavorable survival marker, although some lineages such as CCRCC and LSCC show a favorable association.
LUAD, CCRCC, and GBM are the cancer types where FOS mass-spec protein most reproducibly stratifies survival.