Evidence map›Paper›PMID 22951838›Full record

ArticleJournal of virology2012

Deletion of the herpes simplex virus 1 UL49 gene results in mRNA and protein translation defects that are complemented by secondary mutations in UL41.

Ekaette F Mbong, Lucille Woodley, Eric Dunkerley, Jane E Schrimpf, Lynda A Morrison, Carol Duffy

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 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

29 citing papers in PubMed, 38 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

6 authors at 2 institutions in 1 country.

Ekaette F MbongDepartment of Biological Sciences, University of Alabama, Tuscaloosa, Alabama, USA.
Lucille Woodley
Eric Dunkerley
Jane E Schrimpf
Lynda A Morrison
Carol Duffy
University of Alabama · USSaint Louis University · US

Funding

The Role of VP22 in Protein Synthesis and mRNA Accumulation During HSV-1 InfectioR21AI083952 · NIAID · UNIVERSITY OF ALABAMA IN TUSCALOOSA · PI DUFFY, CAROL LYNN · 2009 to 2010
$389k
Howard Hughes Medical InstituteNIAID NIH HHS R21 AI083952NIAID NIH HHS R21 AI 083952-01
6 · The paper itself

Abstract

Herpes simplex virus 1 (HSV-1) virions, like those of all herpesviruses, contain a protein layer termed the tegument localized between the capsid and the envelope. VP22, encoded by the U(L)49 gene, is one of the most abundant tegument proteins in HSV-1 virions. Studies with a U(L)49-null mutant showed that the absence of VP22 resulted in decreased protein synthesis at late times in infection. VP22 is known to form a tripartite complex with VP16 and vhs through direct interactions with VP16. Given that U(L)49-null mutants have been shown to acquire spontaneous secondary mutations in the U(L)41 gene, which encodes vhs, we hypothesized that VP22 and vhs may play antagonistic roles during HSV-1 infections. In the present study, we show that the protein synthesis defect observed in U(L)49-null virus infections was rescued by a secondary, compensatory frameshift mutation in U(L)41. A double mutant bearing a deletion of U(L)49 and a point mutation in vhs previously shown to specifically abrogate vhs's RNase activity also resulted in a rescue of protein synthesis. To determine whether the U(L)49(-) protein synthesis defect, and the rescue by secondary mutations in vhs, occurred at the mRNA and/or translational levels, quantitative reverse transcriptase PCR (qRT-PCR) and polysome analyses were performed. We found that the absence of VP22 caused a small decrease in mRNA levels as well as a defect in polysome assembly that was independent of mRNA abundance. Both defects were complemented by the secondary mutations in vhs, indicating functional interplay between VP22 and vhs in both accumulation and translation of viral mRNAs.

Indexed as

MutationAnimalsCell LineGenetic Complementation TestHeLa CellsHerpesvirus 1, HumanHumansPolyribosomesProtein BiosynthesisRNA, MessengerRNA, ViralVero CellsViral ProteinsViral Structural ProteinsVirionherpes simplex virus type 1 protein VP22RNA, MessengerRNA, ViralUl41 protein, Human herpesvirus 1Viral ProteinsViral Structural Proteins

Identifiers

PMID22951838
PMCPMC3486455
OpenAlexW2165590286

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.