Across TCGA pan-cancer cohorts, IGLV5-45 mass-spec protein is linked to patient survival in 3 of 34 cancer types, making it a survival-associated IGLV5-45 data layer compared with 25 for mass-spec protein and 1 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher IGLV5-45 mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated IGLV5-45 expression acts as an unfavorable survival marker, although some lineages such as CCRCC and LSCC show a favorable association.
HNSC, CCRCC, and LSCC are the cancer types where IGLV5-45 mass-spec protein most reproducibly stratifies survival.