Evidence map›Paper›PMID 17341665›Full record

ArticleBlood2007

Hsp72 up-regulates Epstein-Barr virus EBNALP coactivation with EBNA2.

Chih-Wen Peng, Bo Zhao, Hong-Chi Chen, Min-Luen Chou, Chiou-Yan Lai, Shinn-Zong Lin, Hsue-Yin Hsu, Elliott Kieff

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Ribosome Protein L4 is essential for Epstein-Barr Virus Nuclear Antigen 1 function.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  8. Article
  9. Epstein-Barr virus nuclear antigen leader protein localizes to promoters and enhancers with cell transcription factors and EBNA2.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Heat shock protein 70 (hsp70) as an emerging drug target.Journal of medicinal chemistry · 2010
    Review
  15. 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

8 authors at 3 institutions in 2 countries.

Chih-Wen PengDepartment of Life Science and Gene Therapy Division, Tzu-Chi University and Hospital, Hualien, Taiwan.
Bo Zhao
Hong-Chi Chen
Min-Luen Chou
Chiou-Yan Lai
Shinn-Zong Lin
Hsue-Yin Hsu
Elliott Kieff
Harvard University · USTzu Chi University · TWBrigham and Women's Hospital · US

Funding

Epstein-Barr Virus Nuclear Proteins in B Cell Growth TransformationR01CA047006 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ZHAO, BO · 2002 to 2021
$12.1M
MOLECULAR BIOLOGY OF EPSTEIN-BARR VIRUS INFECTIONR35CA047006 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI KIEFF, ELLIOTT D · 1987 to 2000
$1.6M
NCI NIH HHS CA47006NCI NIH HHS R01 CA047006NCI NIH HHS R35 CA047006
6 · The paper itself

Abstract

The Epstein-Barr virus (EBV) transcriptional coactivator EBNALP specifically associates and colocalizes with Hsp72 in lymphoblastoid cell lines. We now find that overexpression of Hsp72 more than doubled EBNALP coactivation with EBNA2 of a transfected EBV LMP1 promoter in B lymphoblasts, did not affect EBNA2 or EBNALP protein levels, and strongly up-regulated EBNA2 and EBNALP coactivation of LMP1 protein expression from the endogenous EBV genome in latency I infected Akata cells. The Hsp72 ATP, protein binding, and the C-terminal regulatory domains were required for full activity. An EBNALP deletion mutant, EBNALPd45, which does not associate with Hsp72, coactivated with EBNA2, but was not affected by Hsp72 overexpression, despite Hsp72 up-regulation of wild-type EBNALP coactivation with EBNA2 at all levels of EBNALP expression, indicating the importance of Hsp72 association with EBNALP for Hsp72 up-regulation of coactivation. Of importance, a 90% RNAi knockdown of Hsp72 reduced EBNALP coactivation with EBNA2 of transfected EBV LMP1 and Cp promoters by approximately 50%. Overexpression of the Hsp72 C-terminal interacting and regulatory protein, CHIP, strongly down-regulated EBNALP coactivation, independently of CHIP ubiquitin ligase activity. CHIP effects were Hsp72 dependent, indicating a background downmodulating role for CHIP in Hsp72 augmentation of EBNA2 and EBNALP coactivation. Based on these and other cited data, we favor a model in which Hsp72 chaperones EBNALP shuttling of repressors from EBNA2-enhanced promoters.

Indexed as

Cell LineEpstein-Barr Virus InfectionsEpstein-Barr Virus Nuclear AntigensHerpesvirus 4, HumanHSP72 Heat-Shock ProteinsHumansPromoter Regions, GeneticProtein TransportUp-RegulationViral ProteinsEBNA-2 protein, Human herpesvirus 4EBNA-LP protein, Human herpesvirus 4Epstein-Barr Virus Nuclear AntigensHSP72 Heat-Shock ProteinsViral Proteins

Identifiers

PMID17341665
PMCPMC1890828
OpenAlexW2022661937

What OpenQuestion holds

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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.