Across TCGA pan-cancer cohorts, CHRNA4 Mutation is linked to patient survival in 6 of 34 cancer types, making it a survival-associated CHRNA4 data layer compared with 26 for mass-spec protein.
The strongest signal is observed in bladder urothelial carcinoma (BLCA), where higher CHRNA4 Mutation is associated with worse overall survival. In most high-consensus cancer types, elevated CHRNA4 expression acts as an unfavorable survival marker, although some lineages such as LUAD show a favorable association.
BLCA, SKCM, and KICH are the cancer types where CHRNA4 Mutation most reproducibly stratifies survival.
Mutation survival associations by lineage
Ranked by sampling consensus. AUC1 and AUC2 indicate survival in the high- and low-expression groups, respectively; the lower AUC marks the poorer-surviving group. p-values are from the log-rank test.