Across TCGA pan-cancer cohorts, ATP9B mass-spec protein is linked to patient survival in 3 of 34 cancer types, making it a survival-associated ATP9B data layer compared with 28 for mass-spec protein and 8 for mutation status.
The strongest signal is observed in lung adenocarcinoma (LUAD), where higher ATP9B mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated ATP9B expression acts as an unfavorable survival marker, although some lineages such as CCRCC show a favorable association.
LUAD, LSCC, and CCRCC are the cancer types where ATP9B mass-spec protein most reproducibly stratifies survival.