Evidence map›Paper›PMID 21430061›Full record

ArticleJournal of virology2011

Intersection of the multivesicular body pathway and lipid homeostasis in RNA replication by a positive-strand RNA virus.

Xiaofeng Wang, Arturo Diaz, Linhui Hao, Brandi Gancarz, Johan A den Boon, Paul Ahlquist

Open access · greenAbstract 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 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.7field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Contribution of yeast models to virus research.Applied microbiology and biotechnology · 2021
    Review
  3. Article
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  5. Article
  6. Review
  7. Article
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  11. RNA virus replication depends on enrichment of phosphatidylethanolamine at replication sites in subcellular membranes.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
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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

6 authors at 2 institutions in 1 country.

Xiaofeng WangInstitute for Molecular Virology, University of Wisconsin, Madison, WI 53706, USA.
Arturo Diaz
Linhui Hao
Brandi Gancarz
Johan A den Boon
Paul Ahlquist
University of Wisconsin–Madison · USHoward Hughes Medical Institute · US

Funding

Virology Training ProgramT32AI078985 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI LAMBERT, PAUL F. · 2009 to 2018
$3.3M
GENE FUNCTIONS AND MOLECULAR GENETICS OF RNA VIRUSESR37GM035072 · NIGMS · UNIVERSITY OF WISCONSIN MADISON · PI AHLQUIST, PAUL G. · 1995 to 2004
$1.9M
GENE FUNCTIONS AND MOLECULAR GENETICS OF RNA VIRUSESR01GM035072 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI AHLQUIST, PAUL G. · 1985 to 2009
$1.6M
NIAID NIH HHS T32 AI078985NIGMS NIH HHS GM35072NIGMS NIH HHS R01 GM035072NIGMS NIH HHS R37 GM035072
6 · The paper itself

Abstract

Like many positive-strand RNA viruses, brome mosaic virus (BMV) RNA replication occurs in membrane-invaginated vesicular compartments. BMV RNA replication compartments show parallels with membrane-enveloped, budding retrovirus virions, whose release depends on the cellular multivesicular body (MVB) sorting pathway. BMV RNA replication compartments are not released from their parent membranes, but might depend on MVB functions for membrane invagination. Prior results show that BMV RNA replication is severely inhibited by deletion of the crucial MVB gene DOA4 or BRO1. We report here that involvement of DOA4 and BRO1 in BMV RNA replication is not dependent on the MVB pathway's membrane-shaping functions but rather is due to their roles in recycling ubiquitin from MVB cargos. We show that deleting DOA4 or BRO1 inhibits the ubiquitination- and proteasome-dependent activation of homologous transcription factors Mga2p and Spt23p, which regulate many lipid metabolism genes, including the fatty acid desaturase gene OLE1, which is essential for BMV RNA replication. However, Mga2p processing and BMV RNA replication are restored by supplementing free ubiquitin, which is depleted in doa4Δ and bro1Δ cells. The results identify Mga2p and Spt23p processing and lipid regulation as sensitive targets of ubiquitin depletion and correctly predict multiple effects of modulating additional host genes RFU1, UBP6, and UFD3. Our results also show that BMV RNA replication depends on additional Mga2p-regulated genes likely involved in lipid metabolism beyond OLE1. Among other points, these findings show the potential for blocking viral RNA replication by modulating lipid synthesis at multiple levels.

Indexed as

Lipid MetabolismVirus ReplicationBromovirusEndopeptidasesEndosomal Sorting Complexes Required for TransportGene DeletionMultivesicular BodiesRNA, ViralSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsUbiquitin ThiolesteraseBro1 protein, S cerevisiaeDOA4 protein, S cerevisiaeEndopeptidasesEndosomal Sorting Complexes Required for TransportRNA, ViralSaccharomyces cerevisiae ProteinsUbiquitin Thiolesterase

Identifiers

PMID21430061
PMCPMC3094957
OpenAlexW2000805168

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.