Antibody profiling: native mass spectrometry analysis of intact antibodies can be achieved with improved speed, sensitivity, and mass resolution by using a modified orbitrap instrument. Complex mixtures of monoclonal antibodies can be resolved and their glycan "fingerprints" can be profiled. Noncovalent interactions are maintained, thus allowing antibody-antigen binding to be measured.
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Rosati et al. (2012) studied this question.
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