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        Protein-Protein Interaction

        Captured method

        ka (1/Ms)kd (1/s)KD (M)
        4.788E+062.612E-045.455E-10

        Amine coupling method

        ka (1/Ms)kd (1/s)KD (M)
        3.539E+60.011633.287E-9

        Protein-protein binding analysis using Biacore. The left figure is about binding of antigen to antibody. The right figure is about binding of a molecular chaperone GroEL to cochaperone GroES.

        Protein-compound interaction

        Case 1: KD=126 mM


        Case 2:
        KD=144 nM; kd=0.13 s-1

        Case 3: KD=1.97 nM; kd=0.02 s-1

        Biacore binding assays developed for more than 30 enzymes with small molecules or peptides. These figures show the affinities we have tested range from mM to nM.

        Fragment Library Screening

        Example: Screening plate results

        Example of selected hits: KD in several hundred μM

        Fragment library screening service using Biacore T200 and 384-well plate. 350 fragments can be screened every day. This chart shows an example of screening of 3600 fragments. 41 hit were selected for further affinity characterization.

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