Evidence map›Paper›PMID 15340052›Full record

ArticleMolecular and cellular biology2004

Nature of the accessible chromatin at a glucocorticoid-responsive enhancer.

Michelle Flavin, Lucia Cappabianca, Clémence Kress, Hélène Thomassin, Thierry Grange

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

14 citing papers in PubMed, 29 citations in OpenAlex.

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  13. Active cytosine demethylation triggered by a nuclear receptor involves DNA strand breaks.Proceedings of the National Academy of Sciences of the United States of America · 2006
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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

5 authors at 3 institutions in 1 country.

Michelle FlavinInstitut Jacques Monod du CNRS, Universités Paris 6-7, Tour 43, 2 Place Jussieu, 75251 Paris Cedex 05, France.
Lucia Cappabianca
Clémence Kress
Hélène Thomassin
Thierry Grange
Centre National de la Recherche Scientifique · FRInstitut Jacques Monod · FRSorbonne Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To gain a better understanding of the nature of active chromatin in mammals, we have characterized in living cells the various chromatin modification events triggered by the glucocorticoid receptor (GR) at the rat tyrosine aminotransferase gene. GR promotes a local remodeling at a glucocorticoid-responsive unit (GRU) located 2.5 kb upstream of the transcription start site, creating nuclease hypersensitivity that encompasses 450 bp of DNA. Nucleosomes at the GRU occupy multiple frames that are remodeled without nucleosome repositioning, showing that nucleosome positioning is not the key determinant of chromatin accessibility at this locus. Remodeling affects nucleosomes and adjacent linker sequences, enhancing accessibility at both regions. This is associated with decreased interaction of both the linker histone H1 and the core histone H3 with DNA. Thus, our results indicate that nucleosome and linker histone removal rather than nucleosome repositioning is associated with GR-triggered accessibility. Interestingly, GR induces hyperacetylation of histones H3 and H4, but this is not sufficient either for remodeling or for transcriptional activation. Finally, our data favor the coexistence of several chromatin states within the population, which may account for the previously encountered difficulties in characterizing unambiguously the active chromatin structure in living cells.

Indexed as

Enhancer Elements, GeneticAcetylationAnimalsBase SequenceCell LineChromatinDexamethasoneDNA, ComplementaryHistonesMicrococcal NucleaseNucleosomesRatsReceptors, GlucocorticoidTranscription, GeneticTyrosine TransaminaseChromatinDexamethasoneDNA, ComplementaryHistonesMicrococcal NucleaseNucleosomesReceptors, GlucocorticoidTyrosine Transaminase

Identifiers

PMID15340052
PMCPMC515051
OpenAlexW2080354204

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.