Evidence map›Paper›PMID 34619513›Full record

ReviewCurrent opinion in virology2021

The remarkable viral portal vertex: structure and a plausible model for mechanism.

Venigalla B Rao, Andrei Fokine, Qianglin Fang

Open access · greenAbstract readReview
In one paragraph

Review in Current opinion in virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Formation and role of the portal ofbioRxiv : the preprint server for biology · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Nucleic Acid Packaging in Viruses.Sub-cellular biochemistry · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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 3 institutions in 2 countries.

Venigalla B RaoBacteriophage Medical Research Center, Department of Biology, The Catholic University of America, Washington, DC 20064, USA. Electronic address: rao@cua.edu.
Andrei FokineDepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.
Qianglin FangSchool of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China.
Purdue University West Lafayette · USSun Yat-sen University · CNUniversity of America · US

Funding

Structural studies of bacteriophage T4 and their potential medical applicationsR01AI081726 · NIAID · PURDUE UNIVERSITY · PI KUHN, RICHARD J., RAO, VENIGALLA B. · 2010 to 2019
$6.2M
Structural studies of bacteriophage T4 and their potential medical applicationsR56AI081726 · NIAID · PURDUE UNIVERSITY · PI ROSSMANN, MICHAEL G · 2009 to 2009
$600k
NIAID NIH HHS R01 AI081726NIAID NIH HHS R56 AI081726
6 · The paper itself

Abstract

Many icosahedral viruses including tailed bacteriophages and herpes viruses have a unique portal vertex where a dodecameric protein ring is associated with a fivefold capsid shell. While the peripheral regions of the portal ring are involved in capsid assembly, its central channel is used to transport DNA into and out of capsid during genome packaging and infection. Though the atomic structure of this highly conserved, turbine-shaped, portal is known for nearly two decades, its molecular mechanism remains a mystery. Recent high-resolution in situ structures reveal various conformational states of the portal and the asymmetric interactions between the 12-fold portal and the fivefold capsid. These lead to a valve-like mechanism for this symmetry-mismatched portal vertex that regulates DNA flow through the channel, a critical function for high fidelity assembly of an infectious virion.

Indexed as

CapsidCapsid ProteinsVirionCapsid Proteins

Identifiers

PMID34619513
PMCPMC9579958
OpenAlexW3203397704

What OpenQuestion holds

Textmetadata
LicenceTDM
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.