Although BAP1 expression is not linked to a pancreatic cancer subtype1 (Supplementary Fig. 1c), in two independent pancreatic cancer cohorts1,2 patients with low expression of BAP1 exhibited shorter median survival and a dismal prognosis (hazard ratio (HR) 4.94 with 95% confidence interval (95% CI) 2.62–10.79, Fig. 1c). This evidence concerns the gene BAP1 and pancreatic neoplasm.