| Assay Method Information | |
| | Fluorescence Binding Assay |
| Description: | Fluorescence quenching end point measurements were performed in black polystyrene 384-plates on Tecan Safire monochromator reader with the following settings: excitation 280 nm; excitation bandwidth 10.0 nm; emission collection 340 nm; emission bandwidth 20.0 nm; high sensitivity flash mode; integration time 40 μS; delay 0 μm. All measurements were done in duplicates; GraphPad Prism 5.03 was used for data evaluation, curve fitting, plotting and determination of IC50 values.Serial dilutions of each tested ligands were mixed with truncated CRBN (319-427) to a final volume of 25 μL in the assay buffer (20 mM sodium phosphate buffer, pH 6.5, with 150 mM sodium chloride). The final concentration of CRBN in all assay will be 5-10 μM with DMSO level at 4%. A control lanes were prepared with only tested ligands without the addition of CRBN, top up with assay buffer to 25 μL. Plates were incubated for 5 minutes and analyzed using the monochromator plate reader. |
| Affinity data for this assay | |
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