T2 cells pulsed with or without pIRS2, WT-IRS2, or control HLA-A*02:01-binding Ewing’s sarcoma peptide (EW), were incubated with human PBMCs used as effectors, in the presence or absence of the 6B1 BisAbs or control hIgG1 isotype (Figure 5). The gene discussed is IRS2; the disease is Ewing sarcoma.