Evidence map›Paper›PMID 32967953›Full record

ArticleJournal of virology2020

Role of the Herpes Simplex Virus CVSC Proteins at the Capsid Portal Vertex.

Alexis Huet, Jamie B Huffman, James F Conway, Fred L Homa

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

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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 1 institution in 1 country.

Alexis HuetDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
Jamie B HuffmanDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
James F ConwayDepartment of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.ORCID 0000-0002-6581-4748
Fred L HomaDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA flhoma@pitt.edu.ORCID 0000-0002-4226-2899
University of Pittsburgh · US

Funding

Structure and Function of the Herpesvirus Capsid and its DNA-Packaging MachineryR01AI089803 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F., HOMA, FREDERICK L · 2011 to 2019
$4.0M
Structure and function of the portal vertex on the herpes simplex virus capsidR01AI154646 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F. · 2021 to 2025
$3.3M
Cryo-electron microscopeS10OD025009 · OD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F. · 2018 to 2018
$2.0M
Direct electron detecting (DED) cameraS10OD019995 · OD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F. · 2015 to 2015
$548k
Uncoating of the Herpes Simplex Virus GenomeR21AI132967 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F., HOMA, FREDERICK L · 2017 to 2018
$429k
NIAID NIH HHS R01 AI089803NIAID NIH HHS R01 AI154646NIAID NIH HHS R21 AI132967NIH HHS S10 OD019995NIH HHS S10 OD025009
6 · The paper itself

Abstract

The packaging of DNA into preformed capsids is a critical step during herpesvirus infection. For herpes simplex virus, this process requires the products of seven viral genes: the terminase proteins pUL15, pUL28, and pUL33; the capsid vertex-specific component (CVSC) proteins pUL17 and pUL25; and the portal proteins pUL6 and pUL32. The pUL6 portal dodecamer is anchored at one vertex of the capsid by interactions with the adjacent triplexes as well as helical density attributed to the pUL17 and pUL25 subunits of the CVSC. To define the roles and structures of the CVSC proteins in virus assembly and DNA packaging, we isolated a number of recombinant viruses expressing pUL25, pUL17, and pUL36 fused with green or red fluorescent proteins as well as viruses with specific deletions in the CVSC genes. Biochemical and structural studies of these mutants demonstrated that (i) four of the helices in the CVSC helix bundle can be attributed to two copies each of pUL36 and pUL25, (ii) pUL17 and pUL6 are required for capsid binding of the terminase complex in the nucleus, (iii) pUL17 is important for determining the site of the first cleavage reaction generating replicated genomes with termini derived from the long-arm component of the herpes simplex virus 1 (HSV-1) genome, (iv) pUL36 serves no direct role in cleavage/packaging, (v) cleavage and stable packaging of the viral genome involve an ordered interaction of the terminase complex and pUL25 with pUL17 at the portal vertex, and (vi) packaging of the viral genome results in a dramatic displacement of the portal.

Indexed as

AnimalsCapsidCapsid ProteinsCell LineCell NucleusChlorocebus aethiopsCryoelectron MicroscopyDNA PackagingDNA, ViralEndodeoxyribonucleasesGenes, ViralGenome, ViralHerpesvirus 1, HumanVero CellsViral ProteinsVirus AssemblyCapsid ProteinsDNA cleavage and packaging proteins, HerpesvirusDNA, ViralEndodeoxyribonucleasesterminaseViral Proteinscryo-electron microscopycryoEMCVSCgenome packagingHSV-1pUL17pUL6 portal protein

Identifiers

PMID32967953
PMCPMC7925205
OpenAlexW3088921324

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.