Secondly, somatic mutations of the histone variant H3.3, alpha-thalassemia X-linked syndrome protein (ATRX) and death associated protein (DAXX) have been found in ALT cancers, including pancreatic neuroendocrine (panNET) cancers and glioblastoma multiforme (GBM) cancers30, 31. The gene discussed is DAP; the disease is glioblastoma.