Evidence map›Paper›PMID 26668324›Full record

ArticleThe Journal of biological chemistry2016

Structural Insights into the HIV-1 Minus-strand Strong-stop DNA.

Yingying Chen, Ouerdia Maskri, Françoise Chaminade, Brigitte René, Jessica Benkaroun, Julien Godet, Yves Mély, Olivier Mauffret, Philippe Fossé

Abstract readComparative Study
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Observational
  4. Review
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Yingying ChenFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France, the School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China, and.
Ouerdia MaskriFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France.
Françoise ChaminadeFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France.
Brigitte RenéFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France.
Jessica BenkarounFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France.
Julien Godetthe Laboratoire de Biophotonique et Pharmacologie, UMR-CNRS 7213, Faculté de Pharmacie, Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Cedex, France.
Yves Mélythe Laboratoire de Biophotonique et Pharmacologie, UMR-CNRS 7213, Faculté de Pharmacie, Université de Strasbourg, 74 route du Rhin, 67401 Illkirch-Cedex, France.
Olivier MauffretFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France.
Philippe FosséFrom the LBPA, ENS Cachan, CNRS, Université Paris-Saclay, 61 avenue du Président Wilson, 94235 Cachan cedex, France, fosse@ens-cachan.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An essential step of human immunodeficiency virus type 1 (HIV-1) reverse transcription is the first strand transfer that requires base pairing of the R region at the 3'-end of the genomic RNA with the complementary r region at the 3'-end of minus-strand strong-stop DNA (ssDNA). HIV-1 nucleocapsid protein (NC) facilitates this annealing process. Determination of the ssDNA structure is needed to understand the molecular basis of NC-mediated genomic RNA-ssDNA annealing. For this purpose, we investigated ssDNA using structural probes (nucleases and potassium permanganate). This study is the first to determine the secondary structure of the full-length HIV-1 ssDNA in the absence or presence of NC. The probing data and phylogenetic analysis support the folding of ssDNA into three stem-loop structures and the presence of four high-affinity binding sites for NC. Our results support a model for the NC-mediated annealing process in which the preferential binding of NC to four sites triggers unfolding of the three-dimensional structure of ssDNA, thus facilitating interaction of the r sequence of ssDNA with the R sequence of the genomic RNA. In addition, using gel retardation assays and ssDNA mutants, we show that the NC-mediated annealing process does not rely on a single pathway (zipper intermediate or kissing complex).

Indexed as

Codon, TerminatorModels, MolecularBinding SitesDNA, RecombinantDNA, Single-StrandedDNA, ViralElectrophoretic Mobility Shift Assaygag Gene Products, Human Immunodeficiency VirusHIV-1KineticsMolecular WeightMutationNucleic Acid ConformationNucleic Acid HybridizationNucleocapsid ProteinsPhylogenyCodon, TerminatorDNA, RecombinantDNA, Single-StrandedDNA, Viralgag Gene Products, Human Immunodeficiency VirusNCP7 protein, Human immunodeficiency virus 1Nucleocapsid ProteinsRNA, ViralDNA-protein interactionDNA structurehuman immunodeficiency virus (HIV)nucleic acid structurereverse transcription

Identifiers

PMID26668324
PMCPMC4751388

What OpenQuestion holds

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Registered trials

None linked

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.