It is one of Translocated in liposarcoma, Ewing’s sarcoma and TATA-binding protein-associated factor 15 (TET, also named as FET) protein family members that also contains Fused in Sarcoma (FUS) and TATA-box binding protein Associated Factor 15 (TAF15) [17]. The gene discussed is TAF15; the disease is Ewing sarcoma.