Recombinant Anti-CEA x Anti-DR5 Bispecific Antibody (scDiabody-CH3) is a fusion protein of two scDiabodies connected together by a CH3 region. In single-chain Diabodies, an additional connecting linker is introduced between chains of the anti-CEA/anti-DR5 diabody. The scDiabody with two specificities is fused to each of the CH3 chains to extend half-life. This BsAb can induce targeted apoptosis by activation of the death receptor. It is designed for the research of Breast cancer; Ovary cancer; Colon cancer; Lung cancer therapy.