Evidence map›Paper›PMID 19535446›Full record

ArticleJournal of virology2009

Matrix mediates the functional link between human immunodeficiency virus type 1 RNA nuclear export elements and the assembly competency of Gag in murine cells.

Nathan M Sherer, Chad M Swanson, Stelios Papaioannou, Michael H Malim

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

32 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
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  6. Subcellular Localization of HIV-1Journal of virology · 2017
    Article
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  8. Review
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  14. Cytoplasmic HIV-1 RNA is mainly transported by diffusion in the presence or absence of Gag protein.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Transcriptional and posttranscriptional regulation of HIV-1 gene expression.Cold Spring Harbor perspectives in medicine · 2012
    Review
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.

Nathan M ShererDepartment of Infectious Diseases, King's College School of Medicine, London SE1 9RT, United Kingdom.
Chad M Swanson
Stelios Papaioannou
Michael H Malim
King's College School · GB

Funding

Medical Research Council G0401570
6 · The paper itself

Abstract

Human immunodeficiency virus type 1 (HIV-1) assembles poorly in murine cells, reflecting inefficient targeting of the Gag structural polyprotein to the plasma membrane. Virus particle production can be restored by replacing the cis-acting Rev response element (RRE) in Gag-Pol mRNAs with multiple copies of the CTE (4xCTE), suggesting a mechanistic link between HIV-1 RNA trafficking and productive Gag assembly. In this report, we demonstrate that Gag molecules generated from RRE-dependent transcripts are intrinsically defective for assembly in murine 3T3 cells. When controlled for the intracellular Gag level, modulations of the Gag matrix (MA) domain that enhance Gag membrane association (e.g., deletion of the MA globular head) substantially improve assembly for Gag derived from RRE- but not 4xCTE-dependent transcripts. Gag mutants carrying a leucine zipper replacement of the nucleocapsid (NC) domain remain largely assembly defective when derived from RRE-dependent transcripts, indicating that the defect does not reflect aberrant NC/RNA-driven Gag multimerization. We further demonstrate that single changes in uncharged amino acids implicated in Gag/MA myristoyl switch regulation, most notably replacing the leucine at position 21 with serine, improve assembly for Gag derived from RRE-dependent transcripts. In sum, we provide genetic evidence to suggest that HIV-1 RNA metabolism specifically modulates the activation of MA-dependent membrane targeting.

Indexed as

Virus AssemblyVirus Replication3T3 CellsActive Transport, Cell NucleusAnimalsCell Membranegag Gene Products, Human Immunodeficiency VirusHeLa CellsHIV-1HIV AntigensHumansMiceProtein BindingRNA, Viralgag Gene Products, Human Immunodeficiency VirusHIV Antigensp17 protein, Human Immunodeficiency Virus Type 1RNA, Viral

Identifiers

PMID19535446
PMCPMC2738188
OpenAlexW2164802950

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.