Across TCGA pan-cancer cohorts, PRPF38B mass-spec protein is linked to patient survival in 6 of 34 cancer types, making it a survival-associated PRPF38B data layer compared with 25 for mass-spec protein and 4 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher PRPF38B mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated PRPF38B expression acts as an unfavorable survival marker, although some lineages such as LSCC and GBM show a favorable association.
HNSC, LSCC, and GBM are the cancer types where PRPF38B mass-spec protein most reproducibly stratifies survival.