Evidence map›Paper›PMID 21159863›Full record

ArticleJournal of virology2011

Basic residues in the nucleocapsid domain of Gag are critical for late events of HIV-1 budding.

Vincent Dussupt, Paola Sette, Nana F Bello, Melodi P Javid, Kunio Nagashima, Fadila Bouamr

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 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
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  20. Nucleocapsid Protein: A Desirable Target for Future Therapies Against HIV-1.Current topics in microbiology and immunology · 2015
    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

6 authors at 3 institutions in 1 country.

Vincent DussuptLaboratory of Molecular Microbiology, NIAID, NIH, Bethesda, MD 20892, USA.
Paola Sette
Nana F Bello
Melodi P Javid
Kunio Nagashima
Fadila Bouamr
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · USScience Applications International Corporation (United States) · US

Funding

Studies of Host Cellular Proteins Required for viral Budding and releaseZIAAI000952 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI BOUAMR, FADILA · 2009 to 2014
$5.6M
Intramural NIH HHS
6 · The paper itself

Abstract

The p6 region of HIV-1 Gag contains two late (L) domains, PTAP and LYPXnL, that bind the cellular proteins Tsg101 and Alix, respectively. These interactions are thought to recruit members of the host fission machinery (ESCRT) to facilitate HIV-1 release. Here we report a new role for the p6-adjacent nucleocapsid (NC) domain in HIV-1 release. The mutation of basic residues in NC caused a pronounced decrease in virus release from 293T cells, although NC mutant Gag proteins retained the ability to interact with cellular membranes and RNAs. Remarkably, electron microscopy analyses of these mutants revealed arrested budding particles at the plasma membrane, analogous to those seen following the disruption of the PTAP motif. This result indicated that the basic residues in NC are important for virus budding. When analyzed in physiologically more relevant T-cell lines (Jurkat and CEM), NC mutant viruses remained tethered to the plasma membrane or to each other by a membranous stalk, suggesting membrane fission impairment. Remarkably, NC mutant release defects were alleviated by the coexpression of a Gag protein carrying a wild-type (WT) NC domain but devoid of all L domain motifs and by providing alternative access to the ESCRT pathway, through the in trans expression of the ubiquitin ligase Nedd4.2s. Since NC mutant Gag proteins retained the interaction with Tsg101, we concluded that NC mutant budding arrests might have resulted from the inability of Gag to recruit or utilize members of the host ESCRT machinery that act downstream of Tsg101. Together, these data support a model in which NC plays a critical role in HIV-1 budding.

Indexed as

Virus ReleaseAmino Acid MotifsAmino Acid SequenceCell LineDNA-Binding ProteinsEndosomal Sorting Complexes Required for Transportgag Gene Products, Human Immunodeficiency VirusHIV-1HIV InfectionsHumansMolecular Sequence DataMutationProtein BindingProtein Structure, TertiaryTranscription FactorsTsg101 ProteinDNA-Binding ProteinsEndosomal Sorting Complexes Required for Transportgag Gene Products, Human Immunodeficiency Virusp6 gag protein, Human immunodeficiency virus 1Transcription FactorsTsg101 Protein

Identifiers

PMID21159863
PMCPMC3067763
OpenAlexW2168941502

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.