Cited by 32SARS-CoV-2 and COVID-19 ResearchComputational Drug Discovery MethodsEnzyme Structure and Function

Revealing druggable cryptic pockets in the Nsp1 of SARS-CoV-2 and other β-coronaviruses by simulations and crystallography

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Borsatto, Alberto, Akkad, Obaeda, Galdadas, Ioannis, Ma, Shumeng, Damfo, Shymaa, Haider, Shozeb, Kozielski, Frank, Estarellas, Carolina +1 more·2022·eLife

Published version of a preprint

Abstract

Non-structural protein 1 (Nsp1) is a main pathogenicity factor of α - and β - coronaviruses. Nsp1 of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) suppresses the host gene expression by sterically blocking 40S host ribosomal subunits and promoting host mRNA degradation. This mechanism leads to the downregulation of the translation-mediated innate immune response in host cells, ultimately mediating the observed immune evasion capabilities of SARS-CoV-2. Here, by combining extensive molecular dynamics simulations, fragment screening and crystallography, we reveal druggable pockets in Nsp1. Structural and computational solvent mapping analyses indicate the partial crypticity of these newly discovered and druggable binding sites. The results of fragment-based screening via X-ray crystallography confirm the druggability of the major pocket of Nsp1. Finally, we show how the targeting of this pocket could disrupt the Nsp1-mRNA complex and open a novel avenue to design new inhibitors for other Nsp1s present in homologous β - coronaviruses.

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Authors
Borsatto, A., Akkad, O., Galdadas, I., Ma, S., Damfo, S., Haider, S., Kozielski, F., Estarellas, C., & Gervasio, F. L.
Affiliations
  • University of Geneva (CH)
  • UCL School of Pharmacy (GB)
  • Universitat de Barcelona (ES)
Corresponding author
Gervasio, Francesco Luigi
Venue
eLife
Published
2022-11-22
Volume
11
ISSN
2050-084X (ISSN-L)
OpenAlex
W4309657977
Cited by
32
References
56
Citations by year
2026: 8 · 2025: 5 · 2024: 8 · 2023: 8 · 2022: 3
FWCI
2.93
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archive ouverte UNIGE (University of Geneva) (publishedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • UCL Discovery (University College London) (submittedVersion)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, other-oa)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
Funders
  • Swiss National Science Foundation (200021_204795, 40B2-0_203628)
  • Swiss National Supercomputing Centre (pr126, s1107)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
Keywords
Nsp1, SARS-CoV-2, betacoronaviruses, cryptic binding sites, druggable pockets, host shutoff, immune evasion, 40S ribosomal subunit, fragment screening, solvent accessibility, antiviral agents, molecular dynamics simulation
MeSH terms
COVID-19, SARS-CoV-2, Crystallography, Humans, Viral Nonstructural Proteins, RNA Stability

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