Even in the pluripotent EC line NCCIT (Figure 3b) displaying EpCAM surface expression only on half of the tumor cells, the EpCAM/CD3-specific bAb still induces marked GCT lysis in the presence of PBMC, amounting to 56.5 ± 4.8%, 59.1 ± 3.9%, and 52.1 ± 8.5% at 1, 0.1, and 0.001 μg/mL, respectively. The gene discussed is EPCAM; the disease is granular cell tumor.