Evidence map›Paper›PMID 20655566›Full record

ArticleVirology2010

Fundamental differences between the nucleic acid chaperone activities of HIV-1 nucleocapsid protein and Gag or Gag-derived proteins: biological implications.

Tiyun Wu, Siddhartha A K Datta, Mithun Mitra, Robert J Gorelick, Alan Rein, Judith G Levin

Open access · hybridAbstract read
In one paragraph

Article in Virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.6field-weighted citation impact, top 18% of its field
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

34 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. HIV-1 Pr55RNA biology · 2017
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

6 authors at 3 institutions in 1 country.

Tiyun WuLaboratory of Molecular Genetics, Program in Genomics of Differentiation, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892-2780, USA.
Siddhartha A K Datta
Mithun Mitra
Robert J Gorelick
Alan Rein
Judith G Levin
National Cancer Institute · USNational Institutes of Health · USScience Applications International Corporation (United States) · US

Funding

Retrovirus Assembly and MaturationZIABC010511 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI REIN, ALAN · 2009 to 2025
$9.4M
Interactions of Retroviral Proteins with Nucleic AcidsZIABC010512 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI REIN, ALAN · 2009 to 2025
$7.7M
Molecular Genetics Of Mammalian Retrovirus ReplicationZIAHD000069 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI LEVIN, JUDITH G · 2009 to 2015
$7.2M
CCR NIH HHS HHSN261200800001CIntramural NIH HHS ZIA HD000069NCI NIH HHS HHSN261200800001ENCI NIH HHS N01 CO012400NCI NIH HHS N01-CO-12400
6 · The paper itself

Abstract

The HIV-1 Gag polyprotein precursor has multiple domains including nucleocapsid (NC). Although mature NC and NC embedded in Gag are nucleic acid chaperones (proteins that remodel nucleic acid structure), few studies include detailed analysis of the chaperone activity of partially processed Gag proteins and comparison with NC and Gag. Here we address this issue by using a reconstituted minus-strand transfer system. NC and NC-containing Gag proteins exhibited annealing and duplex destabilizing activities required for strand transfer. Surprisingly, unlike NC, with increasing concentrations, Gag proteins drastically inhibited the DNA elongation step. This result is consistent with "nucleic acid-driven multimerization" of Gag and the reported slow dissociation of Gag from bound nucleic acid, which prevent reverse transcriptase from traversing the template ("roadblock" mechanism). Our findings illustrate one reason why NC (and not Gag) has evolved as a critical cofactor in reverse transcription, a paradigm that might also extend to other retrovirus systems.

Indexed as

Cell LineDNA, ViralFluorescence Polarizationgag Gene Products, Human Immunodeficiency VirusHIV-1HumansMolecular ChaperonesNucleic Acid ConformationProtein MultimerizationReverse TranscriptionDNA, Viralgag Gene Products, Human Immunodeficiency VirusMolecular ChaperonesNCP7 protein, Human immunodeficiency virus 1

Identifiers

PMID20655566
PMCPMC2963451
OpenAlexW2085642080

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.