ArticleProceedings of the National Academy of Sciences of the United States of America2021
Structural basis for backtracking by the SARS-CoV-2 replication-transcription complex.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
78 citing papers in PubMed, 120 citations in OpenAlex.
- Characterisation of SARS-CoV-2 genomic variation in response to molnupiravir treatment in the AGILE Phase IIa clinical trial.Nature communications · 2022Trial
- Recent advances in functional studies of coronavirus NSP13 helicase and challenges in inhibitor development.Virulence · 2026Review
- Discovery of two novel small-molecule series with potent SARS-CoV-2 inhibitionChemical science · 2026Article
- The nucleoside analog CMX521 inhibits coronavirus RNA-dependent RNA polymerase via a two-pronged mechanism.bioRxiv : the preprint server for biology · 2026Article
- SARS-CoV-2 Nsp13 helicase resolves G-quadruplexes and is inhibited by G4 ligands or an antiviral regulator: Implications for G4 anti-coronavirus therapies.The Journal of biological chemistry · 2026Article
- Copy-back RNA synthesis by coronavirus polymerase requires helicase activity and is stimulated by remdesivir and molnupiravir.Science advances · 2026Article
- Targeting SARS-CoV-2 Non-Structural Proteins: A Blueprint for Next-Generation Small-Molecule Coronavirus Antivirals.Pharmaceutics · 2026Review
- Orchestrated and dynamic nucleotide addition cycle during respiratory syncytial virus early-stage elongation.Nature communications · 2026Article
- Preferential remdesivir triphosphate incorporation by SARS-CoV-2 polymerase is altered to ATP by the S759A mutation.Communications biology · 2026Article
- Motif V is an allosteric couple between the SARS-CoV-2 nsp13 nucleotide triphosphatase and helicase active sites.The Journal of biological chemistry · 2026Article
- SARS-CoV-2-host and interactions: the dual roles of E3 ubiquitin ligases and ubiquitin-like modification mechanisms in viral infection.Frontiers in immunology · 2026Review
- A structural roadmap for the formation of the coronavirus nsp3/nsp4 double membrane vesicle pore and its implications for polyprotein processing and replication/transcription.Journal of virology · 2025Article
- The C-terminal Domain of SARS-CoV-2 nsp8 is a Molten Globule in the Absence of Binding Partners.Journal of molecular biology · 2025Article
- Template switching by coronavirus polymerase requires helicase activity and is stimulated by remdesivir and molnupiravir.bioRxiv : the preprint server for biology · 2025Article
- Article
- Myricetin-bound crystal structure of the SARS-CoV-2 helicase NSP13 facilitates the discovery of novel natural inhibitors.Acta crystallographica. Section D, Structural biology · 2025Article
- Review
- A novel ADP-directed chaperone function facilitates the ATP-driven motor activity of SARS-CoV helicase.Nucleic acids research · 2025Article
- Immuno-epigenetic paradigms in coronavirus infection.Frontiers in immunology · 2025Review
- SARS-CoV-2 nsp13 suppresses hepatitis B virus replication by targeting cccDNA transcription.Journal of virology · 2024Article
18 more citing papers are in PubMed but not listed here.
Corrections and comments
- Update of
Authors and funding
14 authors at 4 institutions in 1 country.
Funding
Abstract
Backtracking, the reverse motion of the transcriptase enzyme on the nucleic acid template, is a universal regulatory feature of transcription in cellular organisms but its role in viruses is not established. Here we present evidence that backtracking extends into the viral realm, where backtracking by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA-dependent RNA polymerase (RdRp) may aid viral transcription and replication. Structures of SARS-CoV-2 RdRp bound to the essential nsp13 helicase and RNA suggested the helicase facilitates backtracking. We use cryo-electron microscopy, RNA-protein cross-linking, and unbiased molecular dynamics simulations to characterize SARS-CoV-2 RdRp backtracking. The results establish that the single-stranded 3' segment of the product RNA generated by backtracking extrudes through the RdRp nucleoside triphosphate (NTP) entry tunnel, that a mismatched nucleotide at the product RNA 3' end frays and enters the NTP entry tunnel to initiate backtracking, and that nsp13 stimulates RdRp backtracking. Backtracking may aid proofreading, a crucial process for SARS-CoV-2 resistance against antivirals.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.