A transient cell-based phenotype assay for hepatitis C NS3/4A protease: application to potency determinations of a novel macrocyclic inhibitor against diverse protease sequences isolated from plasma infected with HCV.

Abstract excerpt

The potential of hepatitis C virus (HCV) to develop antiviral resistance renders phenotypic analysis of viral relapse or breakthrough sequences essential to the clinical evaluation of HCV antivirals. This work describes a transient assay in which clinical NS3/4A sequences are co-expressed in Huh-7 cells with a reporter whose activity is an easily quantifiable measure of protease activity. The utility of the assay...

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