A novel method of Multiplexed Competitive Antibody Binning for the characterization of monoclonal antibodies.

We have developed a novel method of high-throughput Multiplexed Competitive Antibody Binning (MCAB). Using only a small amount of antibody and antigen, this method enables the sorting of a large, complex panel of monoclonal antibodies into different bins based on cross-competition for antigen binding. The MCAB assay builds on Luminex multiplexing bead-based technology to detect antibody competition. Because of its high sensitivity, the MCAB method is immediately applicable after identification of antigen-positive mAbs, providing information useful for advancing mAb candidates into further testing. The MCAB assay also can be used for sorting mAbs into binding groups after screening for functional activity.