There has been only one study reporting a NLS in EWS, but none reporting those in FLI1 and EWS-FLI1.     ///    "To clarify the function of chimeric EWS-FLI1 proteins, an identification of a nuclear localization signal (NLS) in the EWS, FLI1 and EWS-FLI1 proteins is important because the chimeric oncoprotein may lose or gain NLS function different from native proteins resulting in different subcellular localization, and in deregulated gene expression. "