Automated Multienzyme Digestion Workflows for Confident Characterization of Challenging Posttranslational Modifications in Therapeutic Antibodies by LC–MS/MS
Non‐reduced trypsin digestion of therapeutic antibodies can generate large disulfide‐linked peptide complexes that exhibit poor chromatographic and mass spectrometric performance. This limits the confident characterization of posttranslational modifications (PTMs) in specific antibody regions, such as the heavy‐chain c...