ArticleNucleic acids research2024
SARS-CoV-2 nsp15 preferentially degrades AU-rich dsRNA via its dsRNA nickase activity.
Article in Nucleic acids research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 18 citations in OpenAlex.
- Coronavirus Nsp15 endoribonuclease: linking viral RNA regulation to immune evasion and viral fitness.Journal of virology · 2026Review
- Antagonism of stress granules key for SARS-CoV-2 infection and pathogenesis.bioRxiv : the preprint server for biology · 2026Article
- A combined PIE-FRET and FCS assay to monitor RNA dynamics and cleavage by SARS-CoV-2 Nsp15.Scientific reports · 2026Article
- SARS-CoV-2 Nsp15 facilitates immune evasion and viral replication by limiting multiple host innate immune pathways, including cGAS-STING.The Journal of general virology · 2026Article
- Metal ions govern coronavirus endoribonuclease activity.Nucleic acids research · 2026Article
- SARS-CoV-2 EndoU-ribonuclease regulates RNA recombination and impacts viral fitness.Nature communications · 2025Article
- Cleavage sequence specificity of Nsp15.RNA biology · 2025Article
- Codon Usage Bias Analysis of Citrus Leaf Blotch Virus.Viruses · 2025Article
- A combined PIE-FRET and FCS assay to monitor RNA dynamics and cleavage by SARS-CoV-2 Nsp15.Research square · 2025Article
- SARS-CoV-2 nsp15 enhances viral virulence by subverting host antiviral defenses.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Biomolecular condensates control and are defined by RNA-RNA interactions that arise in viral replication.Research square · 2025Article
- Impact of SARS-CoV-2 Wuhan and Omicron Variant Proteins on Type I Interferon Response.Viruses · 2025Article
- Molecular basis for the calcium-dependent activation of the ribonuclease EndoU.Nature communications · 2025Article
- Spontaneous base flipping helps drive Nsp15's preferences in double stranded RNA substrates.Nature communications · 2025Article
- Alternative substrate kinetics of SARS-CoV-2 Nsp15 endonuclease reveals a specificity landscape dominated by RNA structure.Nucleic acids research · 2024Article
- SARS-CoV-2 Nsp15 antagonizes the cGAS-STING-mediated antiviral innate immune responses.bioRxiv : the preprint server for biology · 2024Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
It has been proposed that coronavirus nsp15 mediates evasion of host cell double-stranded (ds) RNA sensors via its uracil-specific endoribonuclease activity. However, how nsp15 processes viral dsRNA, commonly considered as a genome replication intermediate, remains elusive. Previous research has mainly focused on short single-stranded RNA as substrates, and whether nsp15 prefers single-stranded or double-stranded RNA for cleavage is controversial. In the present work, we prepared numerous RNA substrates, including both long substrates mimicking the viral genome and short defined RNA, to clarify the substrate preference and cleavage pattern of SARS-CoV-2 nsp15. We demonstrated that SARS-CoV-2 nsp15 preferentially cleaved pyrimidine nucleotides located in less thermodynamically stable areas in dsRNA, such as AU-rich areas and mismatch-containing areas, in a nicking manner. Because coronavirus genomes generally have a high AU content, our work supported the mechanism that coronaviruses evade the antiviral response mediated by host cell dsRNA sensors by using nsp15 dsRNA nickase to directly cleave dsRNA intermediates formed during genome replication and transcription.
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