In addition, a number of site-specifically modified [111In]DTPA-labeled radioimmunoconjugates have been made using the chelator GYK-DTPA, including examples based on the anti-prostate-specific membrane antigen (PSMA) antibody 7E11-C5, the anti-carcinoembryonic antibody C46, the breast cancer-targeting murine IgG 15A8, and the TAG72-targeted antibody B72.3 (i.e., satumomab) [77–80]. The gene discussed is FOLH1; the disease is breast cancer.