Across TCGA pan-cancer cohorts, EXTL2 mass-spec protein is linked to patient survival in 4 of 34 cancer types, making it a survival-associated EXTL2 data layer compared with 27 for mass-spec protein and 4 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher EXTL2 mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated EXTL2 expression acts as an unfavorable survival marker, although some lineages such as CCRCC and LSCC show a favorable association.
PDAC, LUAD, and CCRCC are the cancer types where EXTL2 mass-spec protein most reproducibly stratifies survival.