APOBEC3B and bladder transitional cell carcinoma: For other cancers, the links between genes and contexts were less specific due to the absence of any single dominant signal—for example, bladder cancer SNP rs5750711 and its target gene APOBEC3B showed competing signals among seven contexts including PC-9 lung adenocarcinoma cell line and bladder urothelial carcinoma (BLCA) bulk tumor tissue, with CT-FM-SNP PIPs ranging from 0.51 to 0.59.