Other microsatellite-containing, direct EWS/FLI targets such as CACNB2, FEZV1, FCGRT, FVT1/KDSR, ABHD6 and KIAA1797 have also been identified, although the functional importance of these targets in Ewing sarcoma has not been determined [32,33]. This evidence concerns the gene KDSR and Ewing sarcoma.