Evidence map›Paper›PMID 12393752›Full record

ArticleEMBO reports2002

Human telomeric position effect is determined by chromosomal context and telomeric chromatin integrity.

Catherine Elaine Koering, Alessandra Pollice, Maria Pia Zibella, Serge Bauwens, Alain Puisieux, Michele Brunori, Christine Brun, Luis Martins, Laure Sabatier, John F Pulitzer and 1 more

Open access · greenAbstract read
In one paragraph

Article in EMBO reports, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

82 citing papers in PubMed, 167 citations in OpenAlex.

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  13. Sequence, Chromatin and Evolution of Satellite DNA.International journal of molecular sciences · 2021
    Review
  14. Article
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  18. Article
  19. Non-canonical Roles of Telomerase: Unraveling the Imbroglio.Frontiers in cell and developmental biology · 2019
    Review
  20. Review

22 more citing papers are in PubMed but not listed here.

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

11 authors at 5 institutions in 2 countries.

Catherine Elaine KoeringLaboratoire de Biologie Moléculaire et Cellulaire, UMR5665, Centre National de la Recherche Scientifique, Ecole Normale Supérieure de Lyon, 46 Allée d'Italie, 69364 Lyon cedex 07, France.
Alessandra Pollice
Maria Pia Zibella
Serge Bauwens
Alain Puisieux
Michele Brunori
Christine Brun
Luis Martins
Laure Sabatier
John F Pulitzer
Eric Gilson
École Normale Supérieure de Lyon · FRCEA Paris-Saclay - Etablissement de Fontenay-aux-roses · FRCentre Léon Bérard · FRUniversity of Naples Federico II · ITInstitute of Genetics and Biophysics · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the influence of telomere proximity and composition on the expression of an EGFP reporter gene in human cells. In transient transfection assays, telomeric DNA does not repress EGFP but rather slightly increases its expression. In contrast, in stable cell lines, the same reporter construct is repressed when inserted at a subtelomeric location. The telomeric repression is transiently alleviated by increasing the dosage of the TTAGGG repeat factor 1 (TRF1). Upon a prolongated treatment with trichostatin A, the derepression of the subtelomeric reporter gene correlates with the delocalization of HP1alpha and HP1beta. In contrast, treating the cells with 5 azacytidin, a demethylating agent, or with sirtinol, an inhibitor of the Sir2 family of deacetylase, has no apparent effect on telomeric repression. Overall, position effects at human chromosome ends are dependent on a specific higher-order organization of the telomeric chromatin. The possible involvement of HP1 isoforms is discussed.

Indexed as

Gene Expression RegulationChromatinChromobox Protein Homolog 5Chromosomes, HumanGene SilencingGenes, ReporterHumansTelomereTelomeric Repeat Binding Protein 1Tumor Cells, CulturedCBX1 protein, humanCBX5 protein, humanChromatinChromobox Protein Homolog 5Telomeric Repeat Binding Protein 1

Identifiers

PMID12393752
PMCPMC1307600
OpenAlexW2116238845

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.