Evidence map›Paper›PMID 30355601›Full record

ArticleGenome research2018

Expanding heterochromatin reveals discrete subtelomeric domains delimited by chromatin landscape transitions.

Antoine Hocher, Myriam Ruault, Petra Kaferle, Marc Descrimes, Mickaël Garnier, Antonin Morillon, Angela Taddei

Abstract read
In one paragraph

Article in Genome research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Article
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  5. Review
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  15. Article
  16. Article
  17. Article
  18. Article
  19. Subtelomeric Transcription and its Regulation.Journal of molecular biology · 2020
    Review
  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

7 authors.

Antoine HocherInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.
Myriam RuaultInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.
Petra KaferleInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.
Marc DescrimesInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.
Mickaël GarnierInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.ORCID 0000-0002-3999-0879
Antonin MorillonInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.ORCID 0000-0002-0575-5264
Angela TaddeiInstitut Curie, PSL Research University, CNRS, UMR3664, F-75005 Paris, France.ORCID 0000-0002-3217-0739

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The eukaryotic genome is divided into chromosomal domains of heterochromatin and euchromatin. Transcriptionally silent heterochromatin is found at subtelomeric regions, leading to the telomeric position effect (TPE) in yeast, fly, and human. Heterochromatin generally initiates and spreads from defined loci, and diverse mechanisms prevent the ectopic spread of heterochromatin into euchromatin. Here, we overexpressed the silencing factor Sir3 at varying levels in yeast and found that Sir3 spreads into extended silent domains (ESDs), eventually reaching saturation at subtelomeres. We observed the spread of Sir3 into subtelomeric domains associated with specific histone marks in wild-type cells, and stopping at zones of histone mark transitions including H3K79 trimethylation levels. Our study shows that the conserved H3K79 methyltransferase Dot1 is essential in restricting Sir3 spread beyond ESDs, thus ensuring viability upon overexpression of Sir3. Last, our analyses of published data demonstrate how ESDs unveil uncharacterized discrete domains isolating structural and functional subtelomeric features from the rest of the genome. Our work offers a new approach on how to separate subtelomeres from the core chromosome.

Indexed as

Cell SurvivalChromatin ImmunoprecipitationGene Expression Regulation, FungalGene SilencingHeterochromatinHigh-Throughput Nucleotide SequencingHistonesHumansMethylationNuclear ProteinsSirtuin 3TelomereTranscription FactorsYeastsHeterochromatinHistonesNuclear ProteinsSirtuin 3Transcription Factors

Identifiers

PMID30355601
PMCPMC6280759

What OpenQuestion holds

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LicenceCC BY-NC
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.