BAP1 and mesothelioma: We also analysed a panel of 1001 cancer cell lines submitted for whole exome and copy number analysis as part of the COSMIC cell lines project (Forbes et al., 2015) and identified nine additional non-mesothelioma cell lines harbouring truncating mutations in BAP1 (http://cancer.sanger.ac.uk/cancergenome/projects/cell_lines/).