Evidence map›Paper›PMID 14557661›Full record

ArticleJournal of virology2003

Metaphase chromosome tethering is necessary for the DNA synthesis and maintenance of oriP plasmids but is insufficient for transcription activation by Epstein-Barr nuclear antigen 1.

John Sears, John Kolman, Geoffrey M Wahl, Ashok Aiyar

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

50 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. The Role of Gammaherpesviruses in Cancer Pathogenesis.Pathogens (Basel, Switzerland) · 2016
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Replication of Epstein-Barr viral DNA.Cold Spring Harbor perspectives in biology · 2013
    Review
  18. Review
  19. Article
  20. Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

John SearsDepartment of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA.
John Kolman
Geoffrey M Wahl
Ashok Aiyar
Northwestern University · USSalk Institute for Biological Studies · US

Funding

CARCINOGENESIS TRAINING PROGRAMT32CA009560 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Kathleen Janee Green · 1986 to 2026
$8.4M
FUNCTIONS OF EBNA-1 IN THE STABLE REPLICATION OF EBVK01CA082177 · NCI · UNIVERSITY OF WISCONSIN MADISON · PI AIYAR, ASHOK A · 1999 to 2003
$596k
NCI NIH HHS K01 CA082177NCI NIH HHS T32 CA009560NCI NIH HHS T32 CA09560
6 · The paper itself

Abstract

Epstein-Barr Virus (EBV) infects resting B cells, within which it establishes latency as a stable, circular episome with only two EBV components, the cis element oriP and the latently expressed protein EBNA1. It is believed that EBNA1's ability to tether oriP episomes to metaphase chromosomes is required for its stable replication. We created fusions between the DNA-binding domain (DBD) of EBNA1 and the cellular chromatin-binding proteins HMGA1a and HMG1 to determine the minimal requirements for stable maintenance of an oriP-based episome. These two proteins differ in that HMGA1a can associate with metaphase chromosomes but HMG1 cannot. Interestingly, coinciding with metaphase chromosome association, HMGA1a-DBD but not HMG1-DBD supported both the transient replication and stable maintenance of oriP plasmids, with efficiencies quantitatively similar to that of EBNA1. However, HMGA1a-DBD activated transcription from EBNA1-dependent episomal reporter to only 20% of the level of EBNA1. Furthermore, EBNA1 but not HMGA1a-DBD activated transcription from a chromosomally integrated EBNA1-dependent transcription reporter. This indicates that EBNA1 possesses functional domains that support transcription activation independent of its ability to tether episomal oriP plasmids to cellular chromosomes. We provide evidence that metaphase chromosome tethering is a fundamental requirement for maintenance of an oriP plasmid but is insufficient for EBNA1 to activate transcription.

Indexed as

MetaphaseCell LineChromosomes, HumanDNA-Binding ProteinsDNA ReplicationDNA, ViralEpstein-Barr Virus Nuclear AntigensHMGA1a ProteinHMGB1 ProteinHumansPlasmidsRecombinant Fusion ProteinsReplication OriginTranscriptional ActivationDNA-Binding ProteinsDNA, ViralEBV-encoded nuclear antigen 1Epstein-Barr Virus Nuclear AntigensHMGA1a ProteinHMGB1 ProteinRecombinant Fusion Proteins

Identifiers

PMID14557661
PMCPMC229350
OpenAlexW2111358633

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.