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Analysis of institutional authors

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April 12, 2025
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The differential effect of SARS-CoV-2 NSP1 on mRNA translation and stability reveals new insights linking ribosome recruitment, codon usage, and virus evolution.

Publicated to:Nucleic acids research. 53 (6): - - 2025-03-20 53(6), DOI: 10.1093/nar/gkaf261

Authors: Berlanga JJ; Matamoros T; Pulido MR; Sáiz M; Bayón MN; Toribio R; Ventoso I

Affiliations

Centro de Biología Molecular Severo Ochoa (CSIC-UAM) and Departamento de Biología Molecular, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain. - Author
Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain. - Author

Abstract

The nonstructural protein 1 (NSP1) of SARS-CoV-2 blocks the messenger RNA (mRNA) entry channel of the 40S ribosomal subunit, causing inhibition of translation initiation and subsequent degradation of host mRNAs. However, target mRNA specificity and how viral mRNAs escape NSP1-mediated degradation have not been clarified to date. Here we found that NSP1 acts as a translational switch capable of blocking or enhancing translation depending on how preinitiation complex, 43S-PIC, is recruited to the mRNA, whereas NSP1-mediated mRNA degradation mostly depends on codon usage bias. Thus, fast-translating mRNAs with optimal codon usage for human cells that preferentially recruit 43S-PIC by threading showed a dramatic sensitivity to NSP1. Translation of SARS-CoV-2 mRNAs escapes NSP1-mediated inhibition by a proper combination of suboptimal codon usage and slotting-prone 5' UTR. Thus, the prevalence of nonoptimal codons found in SARS-CoV-2 and other coronavirus genomes is favored by the distinctive effect that NSP1 plays on translation and mRNA stability.

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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Berlanga JJ) and Last Author (Ventoso I).