ArticleNucleic acids research2022
Deciphering RNA G-quadruplex function during the early steps of HIV-1 infection.
Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 35 citations in OpenAlex.
- Dibenzoacridinium derivatives: a new class of G-quadruplex ligands with anti-HIV-1 properties.RSC medicinal chemistry · 2026Article
- Review
- Eps2Fold: a rapid method to characterize G-quadruplex DNA structures using single absorbance spectra.Nucleic acids research · 2025Article
- RNA G-quadruplex structure targeting and imaging: recent advances and future directions.RNA (New York, N.Y.) · 2025Review
- Viral hijacking of host DDX60 promotes Crimean-Congo haemorrhagic fever virus replication via G-quadruplex unwinding.PLoS pathogens · 2025Article
- Using UV-Vis Titration to Elucidate Novel Epigallocatechin Gallate (EGCG)-Induced Binding of the c-MYC G-Quadruplex.Pharmaceuticals (Basel, Switzerland) · 2025Article
- G-Quadruplexes in Tumor Immune Regulation: Molecular Mechanisms and Therapeutic Prospects in Gastrointestinal Cancers.Biomedicines · 2025Review
- Asymmetric distribution of G-quadruplex forming sequences in genomes of retroviruses.Scientific reports · 2025Article
- A Compendium of G-Flipon Biological Functions That Have Experimental Validation.International journal of molecular sciences · 2024Review
- The Nucleolus and Its Interactions with Viral Proteins Required for Successful Infection.Cells · 2024Review
- Mapping the structural landscape of the yeast Ty3 retrotransposon RNA genome.Nucleic acids research · 2024Article
- Structural investigation of pathogenic RFC1 AAGGG pentanucleotide repeats reveals a role of G-quadruplex in dysregulated gene expression in CANVAS.Nucleic acids research · 2024Article
- Article
- Structural and computational studies of HIV-1 RNA.RNA biology · 2024Review
- Unfolding of an RNA G-quadruplex motif in the negative strand genome of porcine reproductive and respiratory syndrome virus by host and viral helicases to promote viral replication.Nucleic acids research · 2023Article
- DNA topoisomerase 1 represses HIV-1 promoter activity through its interaction with a guanine quadruplex present in the LTR sequence.Retrovirology · 2023Review
- Helquat dyes targeting G-quadruplexes as a new class of anti-HIV-1 inhibitors.Scientific reports · 2023Article
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Authors and funding
15 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
G-quadruplexes (G4s) are four-stranded nucleic acid structures formed by the stacking of G-tetrads. Here we investigated their formation and function during HIV-1 infection. Using bioinformatics and biophysics analyses we first searched for evolutionary conserved G4-forming sequences in HIV-1 genome. We identified 10 G4s with conservation rates higher than those of HIV-1 regulatory sequences such as RRE and TAR. We then used porphyrin-based G4-binders to probe the formation of the G4s during infection of human cells by native HIV-1. The G4-binders efficiently inhibited HIV-1 infectivity, which is attributed to the formation of G4 structures during HIV-1 replication. Using a qRT-PCR approach, we showed that the formation of viral G4s occurs during the first 2 h post-infection and their stabilization by the G4-binders prevents initiation of reverse transcription. We also used a G4-RNA pull-down approach, based on a G4-specific biotinylated probe, to allow the direct detection and identification of viral G4-RNA in infected cells. Most of the detected G4-RNAs contain crucial regulatory elements such as the PPT and cPPT sequences as well as the U3 region. Hence, these G4s would function in the early stages of infection when the viral RNA genome is being processed for the reverse transcription step.
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