Evidence map›Paper›PMID 9032307›Full record

ArticleJournal of virology1997

Herpes simplex virus immediate-early proteins ICP0 and ICP4 activate the endogenous human alpha-globin gene in nonerythroid cells.

P Cheung, B Panning, J R Smiley

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  5. Article
  6. Hemoglobin expression in nonerythroid cells: novel or ubiquitous?International journal of inflammation · 2014
    Review
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  18. Article
  19. Hemoglobin induction in mouse macrophages.Proceedings of the National Academy of Sciences of the United States of America · 1999
    Article
  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 1 institution in 1 country.

P CheungInstitute for Molecular Biology and Biotechnology, Department of Biology, McMaster University, Hamilton, Ontario, Canada.
B Panning
J R Smiley
McMaster University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Globin genes are normally expressed only in erythroid cell lineages. However, we found that the endogenous alpha-globin gene is activated following infection of human fibroblasts and HeLa cells with herpes simplex virus (HSV), leading to accumulation of correctly initiated transcripts driven by the alpha-globin promoter. The alpha1- and alpha2-globin genes were both induced, but expression of beta- or zeta-globin genes could not be detected. Experiments using HSV mutants showed that null mutations in the genes encoding the viral immediate-early proteins ICP4 and ICP22 reduced induction approximately 10-fold, while loss of ICP0 function had a smaller inhibitory effect. Transient transfection experiments showed that ICP0 and ICP4 are each sufficient to trigger detectable expression of the endogenous gene, while ICP22 had no detectable effect in this assay. ICP4 also strongly enhanced expression of transfected copies of the alpha2-globin gene. In contrast, the adenovirus E1a protein did not activate the endogenous gene and inhibited expression of the plasmid-borne alpha2-globin gene. Previous studies have led to the hypothesis that chromosomal alpha-globin genes are subject to chromatin-dependent repression mechanism that prevents expression in nonerythroid cells. Our data suggest that HSV ICP0 and ICP4 either break or bypass this cellular gene silencing mechanism.

Indexed as

Gene Expression RegulationViral ProteinsAdenovirus E1A ProteinsAnimalsCell LineChlorocebus aethiopsGene ExpressionGlobinsHeLa CellsHerpesvirus 1, HumanHumansImmediate-Early ProteinsMutagenesisRNARNA, MessengerTime FactorsAdenovirus E1A ProteinsEUS1 protein, Equine herpesvirus 1Globinsherpes simplex virus, type 1 protein ICP4ICP22 protein, human herpesvirus 1Immediate-Early ProteinsRNARNA, MessengerUbiquitin-Protein LigasesViral ProteinsViral Regulatory and Accessory ProteinsVmw110 protein, Human herpesvirus 1

Identifiers

PMID9032307
PMCPMC191247
OpenAlexW2132990783

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.