Antibody conjugates have broad utility in basic, preclinical, and clinical applications. Conventional antibody conjugation through the amine group of lysine or the thiol group of cysteine residues yields heterogeneous products of undefined stoichiometry and considerable batch-to-batch variability. To preserve the two hallmarks of the antibody molecule, precision and predictability, methods that enable site-specific antibody conjugation are in high demand.
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