Evidence map›Paper›PMID 19515781›Full record

ArticleJournal of virology2009

Transcription of the herpes simplex virus latency-associated transcript promotes the formation of facultative heterochromatin on lytic promoters.

Anna R Cliffe, David A Garber, David M Knipe

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 173 papers.

0numbers the graph read from it
0cells of the map it votes in
173citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

173 citing papers in PubMed, 236 citations in OpenAlex.

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113 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Anna R CliffeDepartment of Microbiology and Molecular Genetics, Harvard Medical School, Boston, MA 02115, USA.
David A Garber
David M Knipe
Harvard University · US

Funding

Immune Responses and Protection in Rhesus MacaquesP01AI046006 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI KNIPE, DAVID M. · 1999 to 2010
$11.1M
61ST COLD SPRING HARBOR SYMPOSIUMR13NS035133 · NINDS · COLD SPRING HARBOR LABORATORY · PI STILLMAN, BRUCE W · 1996 to 1996
–
NIAID NIH HHS AI46006NIAID NIH HHS P01 AI046006NINDS NIH HHS P01 NS35133
6 · The paper itself

Abstract

An important question in virology is the mechanism(s) by which persistent viruses such as the herpesviruses and human immunodeficiency virus (HIV) establish a latent infection in specific types of cells. In the case of herpesviruses, herpes simplex virus (HSV) infection of epithelial cells results in a lytic infection, whereas latent infection is established in sensory neurons. Recent studies have shown the importance of chromatin structure in the regulation of latent infection for both HSV and HIV. For HSV, we have shown previously that the viral latency-associated transcript (LAT) promotes lytic gene silencing and the association of one heterochromatin marker, dimethylation of lysine 9 on histone H3 (H3K9me2), with viral lytic genes. In this study, we further defined the structure of latent viral chromatin by examining the heterochromatin markers on histones associated with the HSV latent genome. We detected the H3K9me2, H3K9me3, and H3K27me3 modifications, with H3K27me3, which is indicative of facultative heterochromatin, exhibiting the highest enrichment on all viral promoters tested. A modification associated with cellular centromeric heterochromatin, H4K20me3, was not detected. A mutant virus containing a 1.8-kbp deletion within the LAT region showed reduced levels of the facultative heterochromatin marker (H3K27me3) along with H3K9me3 during latency, whereas a viral mutant defective for the LAT promoter showed a specific reduction in H3K27me3. Cellular long, noncoding RNAs induce facultative heterochromatin, and this study shows that transcription of a viral noncoding RNA can also induce facultative heterochromatin to promote lytic gene silencing during latency.

Indexed as

Promoter Regions, GeneticTranscription, GeneticAnimalsChlorocebus aethiopsGene Expression Regulation, ViralGene SilencingHerpes SimplexHerpesvirus 1, HumanHeterochromatinHistonesHumansMaleProtein BindingRNA, ViralVero CellsVirus LatencyHeterochromatinHistonesRNA, Viral

Identifiers

PMID19515781
PMCPMC2715743
OpenAlexW2142082591

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.