Across TCGA pan-cancer cohorts, EXTL2 Mutation 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 mass-spec protein.
The strongest signal is observed in bladder urothelial carcinoma (BLCA), where higher EXTL2 Mutation 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 UCEC show a favorable association.
BLCA, HNSC, and UCEC are the cancer types where EXTL2 Mutation most reproducibly stratifies survival.