Evidence map›Paper›PMID 8676452›Full record

ArticleJournal of virology1996

Binding of the human immunodeficiency virus type 1 Gag polyprotein to cyclophilin A is mediated by the central region of capsid and requires Gag dimerization.

J Colgan, H E Yuan, E K Franke, J Luban

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

50 citing papers in PubMed, 98 citations in OpenAlex.

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  19. Dynamic allostery governs cyclophilin A-HIV capsid interplay.Proceedings of the National Academy of Sciences of the United States of America · 2015
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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

4 authors at 1 institution in 1 country.

J ColganDepartment of Microbiology, College of Physicians and Surgeons of Columbia University, New York, New York 10032USA.
H E Yuan
E K Franke
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 AI36199
6 · The paper itself

Abstract

The cellular peptidyl-prolyl isomerase cyclophilin A (CyPA) is incorporated into human immunodeficiency virus type 1 (HIV-1) virions via direct contacts with the HIV-1 Gag polyprotein. Disruption of the Gag-CyPA interaction leads to the production of HIV-1 particles lacking CyPA; these virions are noninfectious, indicating that contacts between CyPA and Gag are necessary for HIV-1 replication. Here, we have used the yeast two-hybrid system in conjunction with an in vitro binding assay to identify the minimal domain of Gag required for binding to CyPA. Analysis of a panel of gag deletion mutants in the two-hybrid system indicated that a region spanning the central portion of the capsid (CA) domain was sufficient for interactions with CyPA, but discrepancies between results obtained in different fusion protein contexts suggested that multimerization of Gag might also be necessary for binding to CyPA. Consistent with a requirement for multimerization, the binding of Gag to CyPA in vitro required a region within the nucleocapsid (NC) domain shown previously to be important for Gag self-association. Substitution of a heterologous dimerization motif for the region from NC also promoted specific binding to CyPA, confirming that interactions with CyPA are dependent on Gag multimerization. Fusion of the heterologous dimerization motif to a 100-amino-acid domain from CA was sufficient for binding to CyPA in vitro. These results define the minimal CyPA-binding domain within Gag and provide insight into the mechanism by which CyPA is incorporated into HIV-1 virions.

Indexed as

Amino Acid IsomerasesAmino Acid SequenceBase SequenceBinding SitesCapsidCarrier ProteinsDNA, ViralGene Products, gagHIV-1HumansMolecular Sequence DataMutagenesis, Site-DirectedPeptidylprolyl IsomeraseProlineProtein BindingProteinsAmino Acid IsomerasesCarrier ProteinsDNA, ViralGene Products, gagPeptidylprolyl IsomeraseProlineProteinsRecombinant Fusion Proteins

Identifiers

PMID8676452
PMCPMC190362
OpenAlexW2157835135

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.