Recombinant Anti-Ad fiber knob x Anti-CEA Bispecific Antibody (Single-chain Diabody) is designed to be expressed as one polypeptide chain with four variable domains from two parental antibodies. The middle linker is long enough to form scFv dimers between the two diabody chains. Learn more about Ad fiber knob CEA Single-chain Diabody: https://www.creative-biolabs.com/bsab/bispecific-ad-fiber-knob-cea-single-chain-1912.htm