Evidence map›Paper›PMID 22190727›Full record

ArticleJournal of virology2012

Interactions of the cytoplasmic domain of Sindbis virus E2 with nucleocapsid cores promote alphavirus budding.

Joyce Jose, Laralynne Przybyla, Thomas J Edwards, Rushika Perera, John W Burgner, Richard J Kuhn

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

35 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Review
  3. Current perspectives on alphavirus encapsidation, assembly and budding.Frontiers in cellular and infection microbiology · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Small Molecule Inhibitors Targeting Chikungunya Virus.Current topics in microbiology and immunology · 2022
    Review
  12. Article
  13. Review
  14. ArthritogenicLife (Basel, Switzerland) · 2021
    Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. AnmBio · 2017
    Article
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 1 institution in 1 country.

Joyce JoseMarkey Center for Structural Biology, Department of Biological Sciences, Purdue University, West Lafayette, Indiana, USA.
Laralynne Przybyla
Thomas J Edwards
Rushika Perera
John W Burgner
Richard J Kuhn
Purdue University West Lafayette · US

Funding

MOLECULAR BASIS OF ALPHAVIRUS ASSEMBLYR01GM056279 · NIGMS · PURDUE UNIVERSITY WEST LAFAYETTE · PI KUHN, RICHARD J. · 1997 to 2014
$3.7M
NIGMS NIH HHS GM56279NIGMS NIH HHS R01 GM056279
6 · The paper itself

Abstract

Alphavirus budding from the plasma membrane occurs through the specific interaction of the nucleocapsid core with the cytoplasmic domain of the E2 glycoprotein (cdE2). Structural studies of the Sindbis virus capsid protein (CP) have suggested that these critical interactions are mediated by the binding of cdE2 into a hydrophobic pocket in the CP. Several molecular genetic studies have implicated amino acids Y400 and L402 in cdE2 as important for the budding of alphaviruses. In this study, we characterized the role of cdE2 residues in structural polyprotein processing, glycoprotein transport, and capsid interactions. Along with hydrophobic residues, charged residues in the N terminus of cdE2 were critical for the effective interaction of cores with cdE2, a process required for virus budding. Mutations in the C-terminal signal sequence region of cdE2 affected E2 protein transport to the plasma membrane, while nonbudding mutants that were defective in cdE2-CP interaction accumulated E2 on the plasma membrane. The interaction of cdE2 with cytoplasmic cores purified from infected cells and in vitro-assembled core-like particles suggests that cdE2 interacts with assembled cores to mediate budding. We hypothesize that these cdE2 interactions induce a change in the organization of the nucleocapsid core upon binding leading to particle budding and priming of the nucleocapsid cores for disassembly that is required for virus infection.

Indexed as

Virus ReleaseAlphavirus InfectionsCapsid ProteinsCell LineHumansProtein BindingProtein Structure, TertiarySindbis VirusViral Envelope ProteinsCapsid ProteinsViral Envelope Proteins

Identifiers

PMID22190727
PMCPMC3302261
OpenAlexW2070721147

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.