Evidence map›Paper›PMID 17696647›Full record

ArticlePLoS biology2007

Three-dimensional analysis of a viral RNA replication complex reveals a virus-induced mini-organelle.

Benjamin G Kopek, Guy Perkins, David J Miller, Mark H Ellisman, Paul Ahlquist

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 194 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
194citing papers in PubMed, 1 pooled it
34.4field-weighted citation impact, top 1% 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

194 citing papers in PubMed, 1 synthesis or guideline pooled it, 290 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. HCV NS3/4A protease relocalizes CCTα to viral replication sites, enhancing phosphatidylcholine synthesis and viral replication.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Journal of virology · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Nodavirus RNA replication crown architecture reveals proto-crown precursor and viral protein A conformational switching.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  19. Article
  20. Article

134 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

5 authors at 4 institutions in 1 country.

Benjamin G KopekInstitute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America.
Guy Perkins
David J Miller
Mark H Ellisman
Paul Ahlquist
University of California, San Diego · USHoward Hughes Medical Institute · USMichigan United · USUniversity of Wisconsin–Madison · US

Funding

VOLUMETRIC CONTOUR-BASED SURFACE RECONSTRUCTIONP41RR004050 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PASQUALE, ELENA B · 1989 to 2011
$28.0M
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
NCRR NIH HHS P41 RR004050NCRR NIH HHS P41 RR04050NIGMS NIH HHS GM35072NIGMS NIH HHS R01 GM035072NIGMS NIH HHS R37 GM035072
6 · The paper itself

Abstract

Positive-strand RNA viruses are the largest genetic class of viruses and include many serious human pathogens. All positive-strand RNA viruses replicate their genomes in association with intracellular membrane rearrangements such as single- or double-membrane vesicles. However, the exact sites of RNA synthesis and crucial topological relationships between relevant membranes, vesicle interiors, surrounding lumens, and cytoplasm generally are poorly defined. We applied electron microscope tomography and complementary approaches to flock house virus (FHV)-infected Drosophila cells to provide the first 3-D analysis of such replication complexes. The sole FHV RNA replication factor, protein A, and FHV-specific 5-bromouridine 5'-triphosphate incorporation localized between inner and outer mitochondrial membranes inside approximately 50-nm vesicles (spherules), which thus are FHV-induced compartments for viral RNA synthesis. All such FHV spherules were outer mitochondrial membrane invaginations with interiors connected to the cytoplasm by a necked channel of approximately 10-nm diameter, which is sufficient for ribonucleotide import and product RNA export. Tomographic, biochemical, and other results imply that FHV spherules contain, on average, three RNA replication intermediates and an interior shell of approximately 100 membrane-spanning, self-interacting protein As. The results identify spherules as the site of protein A and nascent RNA accumulation and define spherule topology, dimensions, and stoichiometry to reveal the nature and many details of the organization and function of the FHV RNA replication complex. The resulting insights appear relevant to many other positive-strand RNA viruses and support recently proposed structural and likely evolutionary parallels with retrovirus and double-stranded RNA virus virions.

Indexed as

Virus ReplicationAnimalsDrosophilaImaging, Three-DimensionalMicroscopy, ElectronMitochondrial MembranesNodaviridaeOrganellesRNA, ViralRNA, Viral

Identifiers

PMID17696647
PMCPMC1945040
OpenAlexW2072274257

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.