Remdesivir is a delayed translocation inhibitor of SARS-CoV-2 replication
2021
Bravo, Jack P.K. | Dangerfield, Tyler L. | Taylor, David W. | Johnson, Kenneth A.
Remdesivir is a nucleoside analog approved by the US FDA for treatment of COVID-19. Here, we present a 3.9-Å-resolution cryo-EM reconstruction of a remdesivir-stalled RNA-dependent RNA polymerase complex, revealing full incorporation of 3 copies of remdesivir monophosphate (RMP) and a partially incorporated fourth RMP in the active site. The structure reveals that RMP blocks RNA translocation after incorporation of 3 bases following RMP, resulting in delayed chain termination, which can guide the rational design of improved antiviral drugs.
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