Evidence map›Paper›PMID 31189703›Full record

ArticleJournal of virology2019

Retrograde Regulation by the Viral Protein Kinase Epigenetically Sustains the Epstein-Barr Virus Latency-to-Lytic Switch To Augment Virus Production.

Xiaofan Li, Sergei V Kozlov, Ayman El-Guindy, Sumita Bhaduri-McIntosh

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

19 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Insights into the protein domains of C-VI TRIM subfamily in viral infection.Frontiers in cellular and infection microbiology · 2025
    Review
  5. KAP1 in antiviral immunity: dual roles in viral silencing and immune regulation.Frontiers in cellular and infection microbiology · 2025
    Review
  6. Article
  7. Multifaceted role ofMedComm · 2024
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. A promiscuous inflammasome sparks replication of a common tumor virus.Proceedings of the National Academy of Sciences of the United States of America · 2020
    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

4 authors at 3 institutions in 2 countries.

Xiaofan LiDivision of Infectious Diseases, Department of Pediatrics, University of Florida, Gainesville, Florida, USA.
Sergei V KozlovRadiation Biology and Oncology, Queensland Institute of Medical Research, Brisbane, Queensland, Australia.
Ayman El-GuindyDivision of Infectious Diseases, Department of Pediatrics, Yale University, New Haven, Connecticut, USA.
Sumita Bhaduri-McIntoshDivision of Infectious Diseases, Department of Pediatrics, University of Florida, Gainesville, Florida, USA sbhadurimcintosh@ufl.edu.
University of Florida · USQIMR Berghofer Medical Research Institute · AUYale University · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Host determinants of Epstein-Barr virus lytic cycle activationR01AI113134 · NIAID · UNIVERSITY OF FLORIDA · PI BHADURI-MCINTOSH, SUMITA · 2014 to 2018
$1.9M
sxRNA-based Antiviral Approach targeting Epstein-Barr virusR41AI115834 · NIAID · HOCUSLOCUS, INC. · PI BHADURI-MCINTOSH, SUMITA · 2015 to 2015
$225k
NCATS NIH HHS UL1 TR001863NIAID NIH HHS R01 AI113134NIAID NIH HHS R41 AI115834
6 · The paper itself

Abstract

Herpesviruses are ubiquitous, and infection by some, like Epstein-Barr virus (EBV), is nearly universal. To persist, EBV must periodically switch from a latent to a replicative/lytic phase. This productive phase is responsible for most herpesvirus-associated diseases. EBV encodes a latency-to-lytic switch protein which, upon activation, sets off a vectorially constrained cascade of gene expression that results in production of infectious virus. While triggering expression of the switch protein ZEBRA is essential to lytic cycle entry, sustaining its expression is equally important to avoid premature termination of the lytic cascade. We report that the viral protein kinase (vPK), encoded by a gene that is kinetically downstream of the lytic switch, sustains expression of ZEBRA, amplifies the lytic cascade, increasing virus production, and, importantly, prevents the abortive lytic cycle. We find that vPK, through a noncanonical site phosphorylation, activates the cellular phosphatidylinositol 3-kinase-related kinase ATM to cause phosphorylation of the heterochromatin enforcer KAP1/TRIM28 even in the absence of EBV genomes or other EBV proteins. Phosphorylation of KAP1 renders it unable to restrain ZEBRA, thereby further derepressing and sustaining its expression to culminate in virus production. This partnership with a host kinase and a transcriptional corepressor enables retrograde regulation by vPK of ZEBRA, an observation that is counter to the unidirectional regulation of gene expression reminiscent of most DNA viruses.

Indexed as

Virus LatencyCell LineCell Line, TumorEpigenesis, GeneticHEK293 CellsHerpesvirus 4, HumanHumansPhosphorylationProtein Serine-Threonine KinasesTrans-ActivatorsTripartite Motif-Containing Protein 28Viral ProteinsBGLF4 protein, Epstein-Barr virusBZLF1 protein, Herpesvirus 4, HumanProtein Serine-Threonine KinasesTrans-ActivatorsTRIM28 protein, humanTripartite Motif-Containing Protein 28Viral Proteinsepigeneticshuman herpesviruseslytic activationviral protein kinase

Identifiers

PMID31189703
PMCPMC6694827
OpenAlexW2950583464

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.