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Updated: Oct 15, 2025

High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses
Published on: May 5, 2014
Mechanisms of inhibition of viral RNA replication by nucleotide analogs
Kenneth A Johnson1, Tyler Dangerfield1
1Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, United States.
Abstract:
Nucleotide analogs are the cornerstone of direct acting antivirals used to control infection by RNA viruses. Here we review what is known about existing nucleotide/nucleoside analogs and the kinetics and mechanisms of RNA and DNA replication, with emphasis on the SARS-CoV-2 RNA dependent RNA polymerase (RdRp) in comparison to HIV reverse transcriptase and Hepatitis C RdRp. We demonstrate how accurate kinetic analysis reveals surprising results to explain the effectiveness of antiviral nucleoside analogs providing guidelines for the design of new inhibitors.
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