Evidence map›Paper›PMID 27107820›Full record

ArticleRetrovirology2016

HIV-1 capsid is involved in post-nuclear entry steps.

Nan-Yu Chen, Lihong Zhou, Paul J Gane, Silvana Opp, Neil J Ball, Giuseppe Nicastro, Madeleine Zufferey, Cindy Buffone, Jeremy Luban, David Selwood and 3 more

Open access · goldAbstract read
In one paragraph

Article in Retrovirology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

45 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. The capsid revolution.Journal of molecular cell biology · 2024
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Structure and function of retroviral integrase.Nature reviews. Microbiology · 2022
    Review
  12. Review
  13. Review
  14. Dynactin 1 negatively regulates HIV-1 infection by sequestering the host cofactor CLIP170.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  15. Article
  16. Review
  17. Review
  18. Review
  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

13 authors at 4 institutions in 4 countries.

Nan-Yu ChenDivision of Infection and Immunity, University College London, Cruciform Building, 90 Gower Street, London, WC1E 6BT, UK.
Lihong ZhouDivision of Infection and Immunity, University College London, Cruciform Building, 90 Gower Street, London, WC1E 6BT, UK.
Paul J GaneMedicinal Chemistry Group, University College London, Cruciform Building, Gower Street, London, WC1E 6BT, UK.
Silvana OppDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
Neil J BallMill Hill Laboratory, The Francis Crick Institute, The Ridgeway, Mill Hill, London, NW7 1AA, UK.
Giuseppe NicastroMill Hill Laboratory, The Francis Crick Institute, The Ridgeway, Mill Hill, London, NW7 1AA, UK.
Madeleine ZuffereyDepartment of Microbiology and Molecular Medicine, University of Geneva, 1 Rue Michel Servet, CH-1211, Geneva, Switzerland.
Cindy BuffoneDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
Jeremy LubanDepartment of Microbiology and Molecular Medicine, University of Geneva, 1 Rue Michel Servet, CH-1211, Geneva, Switzerland.
David SelwoodMedicinal Chemistry Group, University College London, Cruciform Building, Gower Street, London, WC1E 6BT, UK.
Felipe Diaz-GrifferoDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
Ian TaylorMill Hill Laboratory, The Francis Crick Institute, The Ridgeway, Mill Hill, London, NW7 1AA, UK.
Ariberto FassatiDivision of Infection and Immunity, University College London, Cruciform Building, 90 Gower Street, London, WC1E 6BT, UK. a.fassati@ucl.ac.uk.
University College London · GBAlbert Einstein College of Medicine · USThe Francis Crick Institute · GBUniversity of Geneva · CH

Funding

Role of Cellular Factors in Retroviral Uncoating and Synthesis of Viral DNAR01AI087390 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI DIAZ-GRIFFERO, FELIPE · 2010 to 2024
$6.8M
Training in HIV/AIDS Pathogenesis; Basic and Translational ResearchT32AI007501 · NIAID · YESHIVA UNIVERSITY · PI PRASAD, VINAYAKA R. · 1995 to 2024
$6.6M
Human Genes that Influence HIV-1 Replication, Pathogenesis, and Immunity in IVDUsDP1DA034990 · NIDA · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LUBAN, JEREMY · 2012 to 2016
$4.1M
Role of TNPO3 in HIV-1 ReplicationR21AI102824 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI DIAZ-GRIFFERO, FELIPE · 2013 to 2014
$444k
Regulation of SAMHD1 antiviral activityR56AI108432 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI DIAZ-GRIFFERO, FELIPE · 2014 to 2014
$431k
Medical Research Council MC_U117533887NIAID NIH HHS R01 AI087390NIAID NIH HHS R21 AI102824NIAID NIH HHS R56 AI108432NIAID NIH HHS T32 AI007501NIDA NIH HHS DP1 DA034990NIDA NIH HHS DP1DA034990Wellcome Trust 083810/Z/07/Z
6 · The paper itself

Abstract

backgroundHIV-1 capsid influences viral uncoating and nuclear import. Some capsid is detected in the nucleus but it is unclear if it has any function. We reported that the antibiotic Coumermycin-A1 (C-A1) inhibits HIV-1 integration and that a capsid mutation confers resistance to C-A1, suggesting that capsid might affect post-nuclear entry steps.

resultsHere we report that C-A1 inhibits HIV-1 integration in a capsid-dependent way. Using molecular docking, we identify an extended binding pocket delimited by two adjacent capsid monomers where C-A1 is predicted to bind. Isothermal titration calorimetry confirmed that C-A1 binds to hexameric capsid. Cyclosporine washout assays in Jurkat CD4+ T cells expressing engineered human TRIMCyp showed that C-A1 causes faster and greater escape from TRIMCyp restriction. Sub-cellular fractionation showed that small amounts of capsid accumulated in the nuclei of infected cells and C-A1 reduced the nuclear capsid. A105S and N74D capsid mutant viruses did not accumulate capsid in the nucleus, irrespective of C-A1 treatment. Depletion of Nup153, a nucleoporin located at the nuclear side of the nuclear pore that binds to HIV-1 capsid, made the virus less susceptible to TRIMCyp restriction, suggesting that Nup153 may help maintain some integrity of the viral core in the nucleus. Furthermore C-A1 increased binding of CPSF6, a nuclear protein, to capsid.

conclusionsOur results indicate that capsid is involved in post-nuclear entry steps preceding integration.

Indexed as

Virus InternalizationAminocoumarinsAntiviral AgentsCell LineHIV-1HIV Core Protein p24HumansAminocoumarinsAntiviral AgentscoumermycinHIV Core Protein p24CapsidCoumermycin-A1HIV-1IntegrationNucleoporinsNucleusNup153Uncoating

Identifiers

PMID27107820
PMCPMC4842275
OpenAlexW2336001169

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.