Across TCGA pan-cancer cohorts, PIR Mutation is linked to patient survival in 3 of 34 cancer types, making it a survival-associated PIR data layer compared with 27 for mass-spec protein and 2 for mass-spec protein.
The strongest signal is observed in skin cutaneous melanoma (SKCM), where higher PIR Mutation is associated with worse disease-free survival. In most high-consensus cancer types, elevated PIR expression acts as an unfavorable survival marker.
SKCM, UCEC, and HNSC are the cancer types where PIR Mutation most reproducibly stratifies survival.