Across TCGA pan-cancer cohorts, GCG Mutation is linked to patient survival in 3 of 34 cancer types, making it a survival-associated GCG data layer compared with 18 for mass-spec protein and 1 for mass-spec protein.
The strongest signal is observed in colon adenocarcinoma (COAD), where higher GCG Mutation is associated with worse overall survival. In most high-consensus cancer types, elevated GCG expression acts as an unfavorable survival marker.
COAD, UCEC, and SKCM are the cancer types where GCG Mutation most reproducibly stratifies survival.