Evidence map›Paper›PMID 20219923›Full record

ArticleJournal of virology2010

Role of human immunodeficiency virus type 1 integrase in uncoating of the viral core.

Marisa S Briones, Charles W Dobard, Samson A Chow

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. HIV Genome-Wide Protein Associations: a Review of 30 Years of Research.Microbiology and molecular biology reviews : MMBR · 2016
    Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Viruses · 2022
    Article
  7. Complex Relationships between HIV-1 Integrase and Its Cellular Partners.International journal of molecular sciences · 2022
    Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Multifunctional facets of retrovirus integrase.World journal of biological chemistry · 2015
    Review
  17. Review
  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

3 authors at 1 institution in 1 country.

Marisa S BrionesDepartment of Molecular and Medical Pharmacology, Molecular Biology Institute and UCLA AIDS Institute, UCLA School of Medicine, Los Angeles, California 90095, USA.
Charles W Dobard
Samson A Chow
UCLA Medical Center · US

Funding

Virology CoreP30AI028697 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JAMIESON-KARAVODIN, BETH DEIRDRE · 1991 to 2018
$39.9M
MOLECULAR MECHANISMS OF HIV1 DNA INTEGRATIONR01CA068859 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CHOW, SAMSON A · 1995 to 2008
$2.5M
RESEARCH TRAINING IN PHARMACOLOGICAL SCIENCEST32GM008652 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HERSCHMAN, HARVEY R. · 1998 to 2005
$1.1M
Binding Between HIV-1 RT and IN and Its Functional SignificationR21AI077386 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CHOW, SAMSON A · 2008 to 2009
$398k
Investigating the Role of HIV-1 Integrase in the Uncoating of the Viral CoreF31GM083356 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BRIONES, MARISA · 2008 to 2010
$76k
NCI NIH HHS CA68859NCI NIH HHS R01 CA068859NIAID NIH HHS AI077386NIAID NIH HHS AI28697NIAID NIH HHS P30 AI028697NIAID NIH HHS R21 AI077386NIGMS NIH HHS 5T32GM008652NIGMS NIH HHS F31 GM083356NIGMS NIH HHS F31GM083356NIGMS NIH HHS T32 GM008652
6 · The paper itself

Abstract

After membrane fusion with a target cell, the core of human immunodeficiency virus type 1 (HIV-1) enters into the cytoplasm, where uncoating occurs. The cone-shaped core is composed of the viral capsid protein (CA), which disassembles during uncoating. The underlying factors and mechanisms governing uncoating are poorly understood. Several CA mutations can cause changes in core stability and a block at reverse transcription, demonstrating the requirement for optimal core stability during viral replication. HIV-1 integrase (IN) catalyzes the insertion of the viral cDNA into the host genome, and certain IN mutations are pleiotropic. Similar to some CA mutants, two IN mutants, one with a complete deletion of IN (NL-DeltaIN) and the other with a Cys-to-Ser substitution (NL-C130S), were noninfectious, with a replication block at reverse transcription. Compared to the wild type (WT), the cytoplasmic CA levels of the IN mutants in infected cells were reduced, suggesting accelerated uncoating. The role of IN during uncoating was examined by isolating and characterizing cores from NL-DeltaIN and NL-C130S. Both IN mutants could form functional cores, but the core yield and stability were decreased. Also, virion incorporation of cyclophilin A (CypA), a cellular peptidyl-prolyl isomerase that binds specifically to CA, was decreased in the IN mutants. Cores isolated from WT virus depleted of CypA had an unstable-core phenotype, confirming a role of CypA in promoting optimal core stability. Taken together, our results indicate that IN is required during uncoating for maintaining CypA-CA interaction, which promotes optimal stability of the viral core.

Indexed as

Virus InternalizationVirus ReplicationAmino Acid SubstitutionCyclophilin AGene DeletionHIV-1HIV Core Protein p24HIV IntegraseHumansProtein BindingCyclophilin AHIV Core Protein p24HIV Integrasep31 integrase protein, Human immunodeficiency virus 1

Identifiers

PMID20219923
PMCPMC2863833
OpenAlexW2144101850

What OpenQuestion holds

Textmetadata
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.