Evidence map›Paper›PMID 23940036›Full record

ArticleThe Journal of biological chemistry2013

Heterochromatic gene silencing by activator interference and a transcription elongation barrier.

Aaron Johnson, Ronghu Wu, Matthew Peetz, Steven P Gygi, Danesh Moazed

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. 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
1.9field-weighted citation impact, top 14% 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, 31 citations in OpenAlex.

  1. Article
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  5. Review
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  8. SIR proteins create compact heterochromatin fibers.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
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  11. Review
  12. Article
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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 2 institutions in 1 country.

Aaron JohnsonFrom the Department of Cell Biology and.
Ronghu Wu
Matthew Peetz
Steven P Gygi
Danesh Moazed
University of Colorado Denver · USHarvard University · US

Funding

New Sample Multiplexing Technologies to Identify Chemical Probes and Illuminate Ubiquitin BiologyR01GM067945 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI GYGI, STEVEN P · 2003 to 2024
$10.5M
MECHANISM OF ACTION OF YEAST SILENCING COMPLEXESR01GM061641 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI MOAZED, DANESH · 2000 to 2014
$3.9M
New Technologies for Quantitative Phosphorylation AnalysisR01HG003456 · NHGRI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI GYGI, STEVEN P · 2005 to 2011
$2.7M
Comprehensive Characterization of Heterochromatin DomainsR00GM094291 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI JOHNSON, AARON M. · 2012 to 2014
$728k
Comprehensive Characterization of Heterochromatin DomainsK99GM094291 · NIGMS · HARVARD MEDICAL SCHOOL · PI JOHNSON, AARON M. · 2010 to 2011
$120k
NHGRI NIH HHS HG3456NHGRI NIH HHS R01 HG003456NIGMS NIH HHS GM67945NIGMS NIH HHS K99 GM094291NIGMS NIH HHS K99/R00 GM094291NIGMS NIH HHS R00 GM094291NIGMS NIH HHS R01 GM061641NIGMS NIH HHS R01 GM067945
6 · The paper itself

Abstract

Heterochromatin silences transcription, contributing to development, differentiation, and genome stability in eukaryotic organisms. Budding yeast heterochromatic silencing is strictly dependent on the silent information regulator (SIR) complex composed of the Sir2 histone deacetylase and the chromatin-interacting proteins Sir3 and Sir4. We use reconstituted SIR heterochromatin to characterize the steps in transcription that are disrupted to achieve silencing. Transcriptional activator binding is permitted before and after heterochromatin assembly. A comprehensive proteomic approach identified heterochromatin-mediated disruption of activator interactions with coactivator complexes. We also find that if RNA polymerase II (Pol II) is allowed to initiate transcription, the SIR complex blocks elongation on chromatin while maintaining Pol II in a halted conformation. This Pol II elongation barrier functions for even one nucleosome, is more effective when assembled with multiple nucleosomes, and is sensitive to a histone mutation that is known to disrupt silencing. This dual mechanism of silencing suggests a conserved principle of heterochromatin in assembling a specific structure that targets multiple steps to achieve repression.

Indexed as

Gene SilencingTranscription Elongation, GeneticHeterochromatinHumansMass SpectrometryModels, GeneticNucleosomesProteomicsRNA Polymerase IISaccharomyces cerevisiaeSilent Information Regulator Proteins, Saccharomyces cerevisiaeTrans-ActivatorsHeterochromatinNucleosomesRNA Polymerase IISilent Information Regulator Proteins, Saccharomyces cerevisiaeTrans-ActivatorsChromatinChromatin ModificationGene SilencingHeterochromatinSir ProteinsTranscription

Identifiers

PMID23940036
PMCPMC3789973
OpenAlexW2090864924

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.