Evidence map›Paper›PMID 21228235›Full record

ArticleJournal of virology2011

Participation of vaccinia virus l2 protein in the formation of crescent membranes and immature virions.

Liliana Maruri-Avidal, Arban Domi, Andrea S Weisberg, Bernard Moss

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 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.8field-weighted citation impact, top 17% 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, 40 citations in OpenAlex.

  1. Review
  2. Review
  3. Assembly and Evolution of Poxviruses.Advances in experimental medicine and biology · 2024
    Review
  4. Article
  5. Article
  6. Crescent-Shaped Supramolecular Tetrapeptide Nanostructures.Journal of the American Chemical Society · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Microscopic Analysis of theFrontiers in microbiology · 2019
    Article
  13. Review
  14. Enigmatic origin of the poxvirus membrane from the endoplasmic reticulum shown by 3D imaging of vaccinia virus assembly mutants.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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 2 institutions in 1 country.

Liliana Maruri-AvidalLaboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892-3210, USA.
Arban Domi
Andrea S Weisberg
Bernard Moss
National Institute of Allergy and Infectious Diseases · USNational Institutes of Health · US

Funding

Poxvirus Entry, Assembly and EgressZIAAI001074 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MOSS, BERNARD · 2009 to 2022
$10.1M
Intramural NIH HHS
6 · The paper itself

Abstract

Morphogenesis of vaccinia virus begins with the appearance of crescent-shaped membrane precursors of immature virions in cytoplasmic factories. During the initial characterization of the product of the L2R reading frame, we discovered that it plays an important role in crescent formation. The L2 protein was expressed early in infection and was associated with the detergent-soluble membrane fraction of mature virions, consistent with two potential membrane-spanning domains. All chordopoxviruses have L2 homologs, suggesting an important function. Indeed, we were unable to isolate an infectious L2R deletion mutant. Consequently, we constructed an inducible mutant with a conditional lethal phenotype. When L2 expression was repressed, proteolytic processing of the major core proteins and the A17 protein, which is an essential component of the immature virion membrane, failed to occur, suggesting an early block in viral morphogenesis. At 8 h after infection in the presence of inducer, immature and mature virions were abundantly seen by electron microscopy. In contrast, those structures were rare in the absence of inducer and were replaced by large, dense aggregates of viroplasm. A minority of these aggregates had short spicule-coated membranes, which resembled the beginnings of crescent formation, at their periphery. These short membrane segments at the edge of the dense viroplasm increased in number at later times, and some immature virions were seen. Although the L2 protein was not detected under nonpermissive conditions, minute amounts could account for stunted and delayed viral membrane formation. These findings suggested that L2 is required for the formation or elongation of crescent membranes.

Indexed as

Virus AssemblyAmino Acid SequenceCell LineGene DeletionGenes, EssentialGenes, ViralHumansMicroscopy, Electron, TransmissionMolecular Sequence DataSequence AlignmentVaccinia virusViral Plaque AssayViral ProteinsVirionViral Proteins

Identifiers

PMID21228235
PMCPMC3067936
OpenAlexW2008938739

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.