Historically, FUS has also been called translated in liposarcoma (TLS) and is a member of the FET family of RNA-binding proteins that include Ewing sarcoma breakpoint region 1 (EWS) and TATA-box binding protein associated factor 15 (TAF15) (Tan and Manley, 2009). The gene discussed is EWSR1; the disease is liposarcoma.