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Assay Method Information

Assay Name:  Enzyme Assay
Description:  The potential of the compounds of the present invention to inhibit acetylcholinesterase and butyrylcholinesterase enzymes were tested according to the method of Ellman et.al. (i.e., Ellman, G. L., Courtney, K. D., Andres, V., and Featherstone, R. M., Biochem. Pharmacol., 1961, 7, 88-95).Human recombinant acetylcholinesterase and human recombinant butyrylcholinesterase were employed. Each reaction mixture contained the enzyme (either ACHE or BCHE) solution, DTNB and sample in Tris HCl buffer solution. The reactions were initiated by the addition of the substrate (either acetylthiocholine iodide or butyrylthiocholine iodide, respectively for ACHE and BCHE enzymes). The enzyme catalyzed formation of the yellow color was measured at 412 nm in terms of the calculation of enzyme activity concomitant to the presence of an inhibitor activity.
Affinity data for this assay
 

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Last update November 1, 2007
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