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In Vitro Selection of Remdesivir-Resistant SARS-CoV-2 Demonstrates High Barrier to Resistance.
Liva Checkmahomed; Venice Du Pont; Nicholas C Riola; Jason Perry; Jiani Li; Danielle Poulin Porter; Guy Boivin.
Afiliação
  • Liva Checkmahomed; Université Laval
  • Venice Du Pont; Gilead Sciences
  • Nicholas C Riola; Gilead Sciences
  • Jason Perry; Gilead Sciences
  • Jiani Li; Gilead Sciences
  • Danielle Poulin Porter; Gilead Sciences, Inc.
  • Guy Boivin; Université Laval
Preprint em Inglês | bioRxiv | ID: ppbiorxiv-479493
ABSTRACT
In vitro selection of remdesivir-resistant SARS-CoV-2 revealed the emergence of a V166L substitution, located outside of the polymerase active site of the nsp12 protein, after 9 passages. V166L remained the only nsp12 substitution after 17 passages at a final concentration of 10 {micro}M RDV, conferring a 2.3-fold increase in EC50. When V166L was introduced into a recombinant SARS-CoV-2 virus, a 1.5-fold increase in EC50 was observed, indicating a high in vitro barrier to RDV resistance.
Licença
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Texto completo: Disponível Coleções: Preprints Base de dados: bioRxiv Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: bioRxiv Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
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