Evidence map›Paper›PMID 9658084›Full record

ArticleJournal of virology1998

Human immunodeficiency virus type 1 replication is modulated by host cyclophilin A expression levels.

L Yin, D Braaten, J Luban

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

58 citing papers in PubMed, 94 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Cyclophilin A Regulates Tripartite Motif 5 Alpha Restriction of HIV-1.International journal of molecular sciences · 2025
    Review
  5. Review
  6. Review
  7. Antiviral Properties of HIV-1 Capsid Inhibitor GSK878.Antimicrobial agents and chemotherapy · 2023
    Article
  8. Article
  9. Review
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  16. Review
  17. Review
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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.

L YinDepartments of Microbiology, Columbia University, College of Physicians and Surgeons, New York, New York 10032, USA.
D Braaten
J Luban
Columbia University · US

Funding

Gag and Cyclophillin in HIV-1 ReplicationR01AI036199 · NIAID · UNIVERSITY OF GENEVA · PI LUBAN, JEREMY · 1994 to 2008
$2.9M
NIAID NIH HHS AI36199NIAID NIH HHS R01 AI036199
6 · The paper itself

Abstract

Human immunodeficiency virus type 1 (HIV-1) Gag and the cellular protein cyclophilin A form an essential complex in the virion core: virions produced by proviruses encoding Gag mutants with decreased cyclophilin A affinity exhibit attenuated infectivity, as do virions produced in the presence of the competitive inhibitor cyclosporine. The A224E Gag mutant has no effect on cyclophilin A affinity but renders HIV-1 replication cyclosporine resistant in Jurkat T cells. In contrast, A224E mutant virus is dead in H9 T cells, although replication is rescued by cyclosporine or by expression in cis of a Gag mutant that decreases cyclophilin A-affinity. The observation that disruption of the Gag-cyclophilin A interaction rescues A224E mutant replication in H9 cells prompted experiments which revealed that, relative to Jurkat cells, H9 cells express greater quantities of cyclophilin A. The resulting larger quantity of cyclophilin A shown to be packaged into virions produced by H9 cells is presumably disruptive to the A224E mutant virion core. Further evidence that increased cyclophilin A expression in H9 cells is of functional relevance was provided by the finding that Gag mutants with decreased cyclophilin A affinity are dead in Jurkat cells but capable of replication in H9 cells. Similarly, cyclosporine concentrations which inhibit wild-type HIV-1 replication in Jurkat cells stimulate HIV-1 replication in H9 cells. These results suggest that HIV-1 virion infectivity imposes narrow constraints upon cyclophilin A stoichiometry in virions and that infectivity is finely tuned by host cyclophilin A expression levels.

Indexed as

Virus ReplicationAlanineGene Products, gagGene Products, vifGlutamic AcidHIV-1HumansJurkat CellsMutagenesis, Site-DirectedPeptidylprolyl IsomeraseProlineTumor Cells, Culturedvif Gene Products, Human Immunodeficiency VirusVirionAlanineGene Products, gagGene Products, vifGlutamic AcidPeptidylprolyl IsomeraseProlinevif Gene Products, Human Immunodeficiency Virus

Identifiers

PMID9658084
PMCPMC109799
OpenAlexW2148690437

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.