After 20 h, HEC1A/EMP2 tumors showed a 1.7-fold increase in 64Cu-DOTA-KS83 minibody localization compared with the wild-type tumor (p < 0.01) and a 5.4-fold increase in localization compared with Ramos tumors (P < 0.001). The gene discussed is EMP2; the disease is neoplasm.