It has been reported that expression of ctag1b/a (aliases include: ny-eso-1, ct6.1, ctag2, lage-2, lage-2a and lage2b) is re-activated, albeit randomly, in several different tumor types but without the distinct expression profile seen in sarcomas (Supplementary File S1, Figure 1). This evidence concerns the gene CTAG2 and sarcoma.