Evidence map›Paper›PMID 9371593›Full record

ArticleJournal of virology1997

Different mechanisms contribute to the E2-mediated transcriptional repression of human papillomavirus type 18 viral oncogenes.

C Demeret, C Desaintes, M Yaniv, F Thierry

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 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

58 citing papers in PubMed, 124 citations in OpenAlex.

  1. Article
  2. Article
  3. Human Papilloma Virus-Infected Cells.Sub-cellular biochemistry · 2023
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Splicing and Polyadenylation of Human Papillomavirus Type 16 mRNAs.International journal of molecular sciences · 2017
    Review
  10. Viral Interplay with the Host Sumoylation System.Advances in experimental medicine and biology · 2017
    Review
  11. Article
  12. Review
  13. The Role of F-Box Proteins during Viral Infection.International journal of molecular sciences · 2013
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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

4 authors at 1 institution in 1 country.

C DemeretDépartement des Biotechnologies, URA 1644 du CNRS, Institut Pasteur, Paris, France.
C Desaintes
M Yaniv
F Thierry
Centre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transcription of the human papillomavirus type 18 (HPV18) E6 and E7 oncogenes is repressed by the viral E2 protein. In C33 cells, we have previously shown that of the four E2 binding sites (E2 BS) present in the HPV18 long control region (LCR), only the binding site adjacent to the TATA box (E2 BS 1) was involved in E2-mediated repression. In the present study, we sought to determine whether this phenomenon was conserved in other cell lines. We first showed that all three E2 BS proximal to the P105 promoter were required for full repression of its activity in HeLa and HaCaT cells. Repression by E2 at E2 BS 2 occurred through the displacement of Sp1. Second, a truncated E2 product, lacking the N-terminal transactivation domain, repressed transcription more efficiently than the full-length protein. Repression was abolished when the N-terminal domain of E2 was replaced by the activation domain of VP16. The VP16-E2 chimeric protein could activate transcription from an LCR mutated in its TATA box. DNA-protein binding studies showed that E2 associates with its four binding sites in the LCR with similar affinities. However, challenge of such complexes with excess binding sites demonstrated that interaction with E2 BS 4 was the most stable while interaction with E2 BS 1 was the least stable. Furthermore, complexes with the full-length E2 were less stable than those formed with the N-terminally truncated protein.

Indexed as

DNA-Binding ProteinsGene Expression Regulation, ViralGenes, ViralOncogenesBinding SitesCell LineHeLa CellsHumansOncogene Proteins, ViralPapillomaviridaePromoter Regions, GeneticRecombinant Fusion ProteinsRepressor ProteinsSp1 Transcription FactorTranscription, GeneticDNA-Binding ProteinsE6 protein, Human papillomavirus type 18E7 protein, Human papillomavirus type 18oncogene protein E2, Human papillomavirus type 18Oncogene Proteins, ViralRecombinant Fusion ProteinsRepressor ProteinsSp1 Transcription Factor

Identifiers

PMID9371593
PMCPMC230237
OpenAlexW1685493687

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.