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Assay Method Information

Assay Name:  High-Throughput Screening Assay
Description:  Day 1Step 1. Add 50 μl anti-mDial (1:160 dilution in 0.1M NaHCO3 pH 9.6)/well. Incubate overnight at 4° C.Day 2Step 2. Use the plate washer to aspirate anti-mDial and wash plates 4× with PBS 100 μl per well per wash.Step 3. Add 180 μl 3% BSA in 1×PBS. Incubate for 1.5 hrs at room temperatureStep 4. Use the plate washer to aspirate the blocking solution and wash 5× with PBS 300 μl per well.Step 5. Add 50 μl of mDial containing lysate (85 μg) and incubate at RT for 3 hours.Step 6. Aspirate the lysate and wash the plate 5× (100 μl) on the plate washer.Step 7. Add 25 μl PBS to the wells.Step 8. Add 0.5 μL compound per well.Step 9. Add 24.5 μL GFP RAGE tail (125 nM) into each well for 2 hrs at room temperature.Step 10. Aspirate and wash 5× with PBS (100 μL) on the plate washer.Step 11. Add 100 ul PBS in each well.Step 12. Detection: Read on fluorescence plate reader excitation 435 nm and 485 nm emissionCompounds that blocked the binding of RAGE tail to mDial by 50% or more were subjected to 4 point dose response: 10 μM, 1 μM, 0.1 μM and 0.01 μM.Compounds that showed dose dependence were then subjected to secondary screen:Kd DeterminationsA number of representative amino and amido compounds of this invention were or can be tested for their inhibitory activity. The amino and amido compounds of the invention along with their available Kd values, as determined using conventional methods to those skilled in the art, are listed below in Table 1.
Affinity data for this assay
 

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Last update November 1, 2007
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