Across TCGA pan-cancer cohorts, PPP1R15B mass-spec protein is linked to patient survival in 1 of 34 cancer types, making it a survival-associated PPP1R15B data layer compared with 28 for mass-spec protein and 6 for mutation status.
The strongest signal is observed in glioblastoma multiforme (GBM), where higher PPP1R15B mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated PPP1R15B expression acts as an unfavorable survival marker.
GBM are the cancer types where PPP1R15B mass-spec protein most reproducibly stratifies survival.