Evidence map›Paper›PMID 20405012›Full record

ArticlePloS one2010

Groucho-mediated repression may result from a histone deacetylase-dependent increase in nucleosome density.

Clint J Winkler, Alberto Ponce, Albert J Courey

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

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  14. Multiple enhancers ensure precision of gap gene-expression patterns in the Drosophila embryo.Proceedings of the National Academy of Sciences of the United States of America · 2011
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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

3 authors at 1 institution in 1 country.

Clint J WinklerDepartment of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California, United States of America.
Alberto Ponce
Albert J Courey
University of California, Los Angeles · US

Funding

MARC U*STAR Program at the University of California, Los AngelesT34GM008563 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MCEVOY, MEGAN M, POE, GINA R · 1996 to 2023
$9.7M
Repressor/co-repressor oligomerization and developmentR01GM044522 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI COUREY, ALBERT J · 1990 to 2011
$4.1M
PREDOCTORAL TRAINING PROGRAM IN GENETIC MECHANISMS AT UCT32GM007104 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GOBER, JAMES W · 1985 to 2011
$3.6M
NIGMS NIH HHS GM07104NIGMS NIH HHS R01 GM044522NIGMS NIH HHS R01 GM44522NIGMS NIH HHS T32 GM007104NIGMS NIH HHS T34 GM008563NIGMS NIH HHS T34GM-08563-14
6 · The paper itself

Abstract

Groucho (Gro) is a Drosophila melanogaster transcriptional corepressor that directly interacts with the histone deacetylase Rpd3. Although previous studies suggest that this interaction is required for repression of Gro-responsive reporters in cultured cells, the in vivo significance of this interaction and the mechanism by which it leads to repression remain largely unexplored. In this study, we show that Gro is partially dependent on Rpd3 for repression, supporting the idea that Rpd3-mediated repression is one mode of Gro-mediated repression. We demonstrate that Gro colocalizes with Rpd3 to the chromatin of a target gene and that this is accompanied by the deacetylation of specific lysines within the N-terminal tails of histones H3 and H4. Gro overexpression leads to wing patterning defects and ectopic repression in the wing disc of transcription directed by the vestigial quadrant enhancer. These effects are reversed by the histone deacetylase inhibitors TSA and HC-Toxin and by the reduction of Rpd3 gene dosage. Furthermore, repression of the vestigial quadrant enhancer is accompanied by a Gro-mediated increase in nucleosome density, an effect that is reversed by histone deacetylase inhibitors. We propose a model in which Gro-mediated histone deacetylation results in increased nucleosome density leading to transcriptional repression.

Indexed as

AnimalsBasic Helix-Loop-Helix ProteinsChromatinDrosophila melanogasterDrosophila ProteinsHistone Deacetylase 1Histone DeacetylasesHistonesNucleosomesRepressor ProteinsBasic Helix-Loop-Helix ProteinsChromatinDrosophila Proteinsgro protein, DrosophilaHDAC1 protein, DrosophilaHistone Deacetylase 1Histone DeacetylasesHistonesNucleosomesRepressor Proteins

Identifiers

PMID20405012
PMCPMC2854148
OpenAlexW1987438891

What OpenQuestion holds

Textmetadata
LicenceCC0
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.