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The mechanism of irreversible inactivation of mandelate racemase (MR) from Pseudomonas putida by alpha-phenylglycidate (alpha PGA) has been investigated stereochemically and crystallographically. The (R) and (S) enantiomers of alpha PGA were synthesized in high enantiomeric excess (81% ee and 83% ee, respectively) using Sharpless epoxidation chemistry.(More)
An estimated 1% of the global human population is infected by hepatitis C viruses (HCVs), and there are no broadly effective treatments for the debilitating progression of chronic hepatitis C. A serine protease located within the HCV NS3 protein processes the viral polyprotein at four specific sites and is considered essential for replication. Thus, it(More)
The hepatitis C virus (HCV) nonstructural 3 protein (NS3) is a 70-kDa multifunctional enzyme with three known catalytic activities segregated in two somewhat independent domains. The essential machinery of a serine protease is localized in the N-terminal one-third of the protein, and nucleoside triphosphatase (NTPase) and helicase activities reside in the(More)
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