| Assay Method Information | |
| | Inhibition Assay |
| Description: | Recombinant three-repeat microtubule-binding domain (3R-MBD) of tau protein was expressed in E. coli and was purified and used for the experiment. The purified tau solution was diluted with a 50 mM Tris-HCl buffer (pH 7.6) to a final concentration of 10 μM. The test compounds were prepared using dimethylsulfoxide (hereinafter also referred to as DMSO) at 20-fold of their final concentrations and added to the tau solution so that the DMSO concentration would be 5%. To this solution, heparin was added so that the final concentration would be 10 μM and the plate was left to stand at 37° C. for 16 hours. Thioflavin T was added to the plate so that the concentration would be 10 μM and the fluorescence intensity was measured with a fluorescence plate reader (PerkinElmer, Inc.)(excitation wavelength: 440 nm; fluorescence wavelength: 486 nm). |
| Affinity data for this assay | |
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