Evidence map›Paper›PMID 19828619›Full record

ArticleJournal of virology2010

Targeting of murine leukemia virus gag to the plasma membrane is mediated by PI(4,5)P2/PS and a polybasic region in the matrix.

E Hamard-Peron, F Juillard, J S Saad, C Roy, P Roingeard, M F Summers, J-L Darlix, C Picart, D Muriaux

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 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
3.2field-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

62 citing papers in PubMed, 90 citations in OpenAlex.

  1. Review
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  7. Atomic view of the HIV-1 matrix lattice; implications on virus assembly and envelope incorporation.Proceedings of the National Academy of Sciences of the United States of America · 2022
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2 more citing papers are in PubMed but not listed here.

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

9 authors at 6 institutions in 2 countries.

E Hamard-PeronLaboRetro, Inserm U758, ENS de Lyon, IFR128, 69364 Lyon, France.
F Juillard
J S Saad
C Roy
P Roingeard
M F Summers
J-L Darlix
C Picart
D Muriaux
Inserm · FRCentre National de la Recherche Scientifique · FRÉcole Normale Supérieure de Lyon · FRHoward Hughes Medical Institute · USLaboratory of Pathogens and Host Immunity · FRUniversity of Maryland, Baltimore County · US

Funding

NMR STUDIES OF HIV1 PROTEINSR37AI030917 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE COUNTY · PI SUMMERS, MICHAEL FINLEY · 1997 to 2015
$4.9M
NMR STUDIES OF HIV-1 PROTEINSR01AI030917 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI SUMMERS, MICHAEL F. · 1991 to 1996
–
NIAID NIH HHS AI30917NIAID NIH HHS R37 AI030917
6 · The paper itself

Abstract

Membrane targeting of the human immunodeficiency virus Gag proteins is dependent on phosphatidylinositol-(4,5)-bisphosphate [PI(4,5)P(2)] located in the plasma membrane. In order to determine if evolutionarily distant retroviral Gag proteins are targeted by a similar mechanism, we generated mutants of the matrix (MA) domain of murine leukemia virus (MuLV) Gag, examined their binding to membrane models in vitro, and analyzed their phenotypes in cell culture. In vitro, we showed that MA bound all the phosphatidylinositol phosphates with significant affinity but displayed a strong specificity for PI(4,5)P(2) only if enhanced by phosphatidylserine. Mutations in the polybasic region in MA dramatically reduced this affinity. In cells, virus production was strongly impaired by PI(4,5)P(2) depletion under conditions of 5ptaseIV overexpression, and mutations in the MA polybasic region altered Gag localization, membrane binding, and virion production. Our results suggest that the N-terminal polybasic cluster of MA is essential for Gag targeting to the plasma membrane. The binding of the MA domain to PI(4,5)P(2) appears to be a conserved feature among retroviruses despite the fact that the MuLV-MA domain is structurally different from that of human immunodeficiency virus types 1 and 2 and lacks a readily identifiable PI(4,5)P(2) binding cleft.

Indexed as

Binding SitesCell MembraneGene Products, gagLeukemia Virus, MurineMutagenesisPhosphatidylinositol 4,5-DiphosphatePhosphatidylserinesRetroviridaeVirus ReplicationGene Products, gagPhosphatidylinositol 4,5-DiphosphatePhosphatidylserines

Identifiers

PMID19828619
PMCPMC2798412
OpenAlexW2120329437

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.