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Assay Method Information

Assay Name:  Scintillation Assay
Description:  The test compounds (2.5 μL) dissolved in DMSO were added to wells containing 37.5 μL of the reaction solution (25 mM HEPES (pH 7.5), 10 mM magnesium acetate, 1 mM DTT) including 30 ng of active ASK1 protein and 1 μg of myelin basic protein (Wako), and incubated at room temperature for 5 min. To start the reaction, 10 μL of ATP solution (2.5 μM ATP, 0.1 μCi [γ-32P]ATP) was added to wells. After incubating at room temperature for 30 min, the reaction was terminated by adding 50 μL of 20% TCA solution. The reaction solution was incubated at 4° C. for 30 min and an acid-insoluble fraction was transferred onto a GF/C filter (Packard) with Cell Harvester (Packard), and washed with 250 mM phosphoric acid. After drying at 45° C. for 60 min., 40 μL of Microscint 0 (Packard) was added and the radioactivity was measured with TopCount (Packard).
Affinity data for this assay
 

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Last update November 1, 2007
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