RT Journal Article SR Electronic T1 Gene of the month: BAP1 JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 750 OP 753 DO 10.1136/jclinpath-2016-203866 VO 69 IS 9 A1 Ami Wang A1 Anjali Papneja A1 Martin Hyrcza A1 Ayman Al-Habeeb A1 Danny Ghazarian YR 2016 UL http://jcp.bmj.com/content/69/9/750.abstract AB The BAP1 gene (BRCA1-associated protein 1) is a tumour suppressor gene that encodes a deubiquitinating enzyme (DUB), regulating key cellular pathways, including cell cycle, cellular differentiation, transcription and DNA damage response. Germline BAP1 mutations cause a novel cancer syndrome characterised by early onset of multiple atypical Spitz tumours and increased risk of uveal and cutaneous melanoma, mesothelioma, renal cell carcinoma and various other malignancies. Recognising the clinicopathological features of specific BAP1-deficient tumours is crucial for early screening/tumour detection, with significant impact on patient outcome.