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Assay Method Information

Assay Name:  Enzyme Assay
Description:  IC50 determination in the LpxC enzyme assay was carried out in a similar manner to that described by Malikzay et al in the 2006 Poster, Screening LpxC (UDP-3-O(R-3-hydroxymyristoyl)-GlcNAc deacetylase) using BioTrove Rapid Fire HTS Mass Spectrometry (aNew Lead Discovery and bInflammation and Infectious Disease, cStructural Chemistry, Schering-Plough Research Institute, Kenilworth, N.J. 07033, (BioTrove, Inc. 12 Gill St., Suite 4000, Woburn, Mass. 01801). Briefly, Pseudomonas aeruginosa LpxC enzyme (0.1 nM) purified from E. coli-overexpressing bacteria was incubated at 25° C. in a final volume of 50 ul containing 0.5 uM UDP-3-O(R-3-hydroxydecanoyl)-N-acetylglucosamine, 1 mg/mL BSA, and 50 mM sodium phosphate buffer, pH 8.0 in the presence and absence of inhibitor compound. At the end of 1 hour, 5 ul of 1N HCl was added to stop the enzyme reaction; the plates were centrifuged, and then processed with the BioTrove Rapidfire HTMS Mass Spectrometry System.
Affinity data for this assay
 

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Last update November 1, 2007
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