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Enzyme Kinetic Measurements for a Combinatorial Library of Inhibitors of Pseudomonas Elastase

Pseudomonas elastase (LasB) is a key drug target in various chronic and intractable infections. A library of 160 potential, in-house synthesised, elastase inhibitors were screened using a fluorescence assay with the internally quenched substrate Abz-Ala-Gly-Leu-Ala-Nba. Enzymatic kinetic measurements were done on a FLUOstar OPTIMA and Km and Vmax values were calculated for each inhibitor using the MARS Data Analysis software.