Evidence map›Paper›PMID 16775316›Full record

ArticleJournal of virology2006

Herpes simplex virus capsid structure: DNA packaging protein UL25 is located on the external surface of the capsid near the vertices.

William W Newcomb, Fred L Homa, Jay C Brown

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
4.7field-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

60 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Nuclear Egress.Current issues in molecular biology · 2021
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Herpesvirus Capsid Assembly and DNA Packaging.Advances in anatomy, embryology, and cell biology · 2017
    Review
  20. 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

3 authors at 2 institutions in 1 country.

William W NewcombDepartment of Microbiology, Box 800734, University of Virginia Health System, 1300 Jefferson Park Ave., Charlottesville, VA 22908, USA.
Fred L Homa
Jay C Brown
University of Virginia Health System · USUniversity of Pittsburgh · US

Funding

ASSEMBLY OF THE HERPES SIMPLEX VIRUS CAPSIDR01AI041644 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI BROWN, JAY CLARK · 1997 to 2012
$2.8M
Herpes Simplex Virus Capsid Assembly and DNA PackagingR01AI060836 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOMA, FREDERICK L · 2006 to 2010
$1.6M
Herpes Simples Virus Capsid Assembly and DNA PackagingR56AI060836 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOMA, FREDERICK L · 2011 to 2011
$379k
Assembly of the Herpes Simplex Virus CapsidR56AI041644 · NIAID · UNIVERSITY OF VIRGINIA · PI BROWN, JAY C. · 2007 to 2007
$354k
NIAID NIH HHS AI 041644-01NIAID NIH HHS AI 060836NIAID NIH HHS R01 AI041644NIAID NIH HHS R01 AI060836NIAID NIH HHS R56 AI041644NIAID NIH HHS R56 AI060836
6 · The paper itself

Abstract

UL25 is one of seven herpes simplex virus-encoded proteins involved specifically in DNA encapsidation. Its role appears to be to stabilize the capsid so that DNA is prevented from escaping once it has entered. To clarify the function of UL25, we have examined capsids with the goal of defining where it is located. Analysis of trypsin-treated capsids showed that UL25 is sensitive to cleavage like other proteins such as the major capsid and portal proteins that are exposed on the capsid surface. Internal proteins such as the scaffolding protein and protease were not affected under the same experimental conditions. Capsids were also examined by electron microscopy after staining with gold-labeled antibody specific for UL25. Images of stained capsids demonstrated that most labeled sites (71% in C capsids) were at capsid vertices, and most stained C capsids had label at more than one vertex. A quantitative immunoblotting method showed that the capsid contents of UL25 were 56, 20, and 75 copies per capsid in A, B, and C capsids, respectively. Finally, soluble UL25 protein was found to bind in vitro to purified capsids lacking it. The amount of bound UL25 corresponded to the amount present in B capsids, and bound UL25 was found by immunoelectron microscopy to be located predominantly at the capsid vertices. The results are interpreted to suggest that five UL25 molecules are found at or near each of the capsid vertices, where they are exposed on the capsid surface. Exposure on the surface is consistent with the view that UL25 is added to the capsid as DNA is packaged or during late stages of the packaging process.

Indexed as

AnimalsAntibodies, MonoclonalCapsidCapsid ProteinsChlorocebus aethiopsDNA, ViralHerpesvirus 1, HumanHumansMicroscopy, Electron, TransmissionProtein BindingProtein Processing, Post-TranslationalVero CellsVirus AssemblyAntibodies, MonoclonalCapsid ProteinsDNA, Viral

Identifiers

PMID16775316
PMCPMC1488932
OpenAlexW2113039620

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.