Evidence map›Paper›PMID 12208942›Full record

ArticleJournal of virology2002

Epstein-Barr virus mRNA export factor EB2 is essential for production of infectious virus.

Henri Gruffat, Julien Batisse, Dagmar Pich, Bernhard Neuhierl, Evelyne Manet, Wolfgang Hammerschmidt, Alain Sergeant

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing 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

55 citing papers in PubMed, 85 citations in OpenAlex.

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  8. Epstein-Barr virus co-opts TFIIH component XPB to specifically activate essential viral lytic promoters.Proceedings of the National Academy of Sciences of the United States of America · 2020
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  16. Spironolactone blocks Epstein-Barr virus production by inhibiting EBV SM protein function.Proceedings of the National Academy of Sciences of the United States of America · 2016
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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

7 authors at 3 institutions in 2 countries.

Henri GruffatLaboratoire de Virologie Humaine, INSERM U412, ENS-Lyon, F-69364 Lyon Cedex 07, France. hgruffat@ens-lyons.fr
Julien Batisse
Dagmar Pich
Bernhard Neuhierl
Evelyne Manet
Wolfgang Hammerschmidt
Alain Sergeant
Institute for Environment and Human Security · DEInserm · FRVirologie et Pathologies Humaines · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The splicing machinery which positions a protein export complex near the exon-exon junction mediates nuclear export of mRNAs generated from intron-containing genes. Many Epstein-Barr virus (EBV) early and late genes are intronless, and an alternative pathway, independent of splicing, must export the corresponding mRNAs. Since the EBV EB2 protein induces the cytoplasmic accumulation of intronless mRNA, it is tempting to speculate that EB2 is a viral adapter involved in the export of intronless viral mRNA. If this is true, then the EB2 protein is essential for the production of EBV infectious virions. To test this hypothesis, we generated an EBV mutant in which the BMLF1 gene, encoding the EB2 protein, has been deleted (EBV(BMLF1-KO)). Our studies show that EB2 is necessary for the production of infectious EBV and that its function cannot be transcomplemented by a cellular factor. In the EBV(BMLF1-KO) 293 cells, oriLyt-dependent DNA replication was greatly enhanced by EB2. Accordingly, EB2 induced the cytoplasmic accumulation of a subset of EBV early mRNAs coding for essential proteins implicated in EBV DNA replication during the productive cycle. Two herpesvirus homologs of the EB2 protein, the herpes simplex virus type 1 protein ICP27 and, the human cytomegalovirus protein UL69, only partly rescued the phenotype of the EBV(BMLF1-KO) mutant, indicating that some EB2 functions in virus production cannot be transcomplemented by ICP27 and UL69.

Indexed as

DNA ReplicationVirus ReplicationActive Transport, Cell NucleusAmino Acid SequenceDNA-Binding ProteinsDNA-Directed DNA PolymeraseHerpesvirus 4, HumanMolecular Sequence DataPhosphoproteinsRNA, MessengerTrans-ActivatorsViral ProteinsBALF2 protein, Human herpesvirus 4BALF5 protein, Epstein-barr virusDNA-Binding ProteinsDNA-Directed DNA PolymerasePhosphoproteinsRNA, MessengerSM protein, Human herpesvirus 4Trans-ActivatorsViral Proteins

Identifiers

PMID12208942
PMCPMC136519
OpenAlexW2119788143

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.