Evidence map›Paper›PMID 21177966›Full record

ArticleGenome research2011

High nucleosome occupancy is encoded at X-linked gene promoters in C. elegans.

Sevinç Ercan, Yaniv Lubling, Eran Segal, Jason D Lieb

Abstract read
In one paragraph

Article in Genome research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Regulation of the X chromosomes in Caenorhabditis elegans.Cold Spring Harbor perspectives in biology · 2014
    Review
  16. pENCODE: a plant encyclopedia of DNA elements.Annual review of genetics · 2014
    Review
  17. Article
  18. Transcriptional regulation of gene expression in C. elegans.WormBook : the online review of C. elegans biology · 2013
    Review
  19. Article
  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

4 authors.

Sevinç ErcanDepartment of Biology, Carolina Center for the Genome Sciences, University of North Carolina, Chapel Hill, North Carolina 27599-3280, USA. ercan@email.unc.edu
Yaniv Lubling
Eran Segal
Jason D Lieb

Funding

NHGRI NIH HHS U01 HG0044270
6 · The paper itself

Abstract

We mapped nucleosome occupancy by paired-end Illumina sequencing in C. elegans embryonic cells, adult somatic cells, and a mix of adult somatic and germ cells. In all three samples, the nucleosome occupancy of gene promoters on the X chromosome differed from autosomal promoters. While both X and autosomal promoters exhibit a typical nucleosome-depleted region upstream of transcript start sites and a well-positioned +1 nucleosome, X-linked gene promoters on average exhibit higher nucleosome occupancy relative to autosomal promoters. We show that the difference between X and autosomes does not depend on the somatic dosage compensation machinery. Instead, the chromatin difference at promoters is partly encoded by DNA sequence, because a model trained on nucleosome sequence preferences from S. cerevisiae in vitro data recapitulate nearly completely the experimentally observed difference between X and autosomal promoters. The model predictions also correlate very well with experimentally determined occupancy values genome-wide. The nucleosome occupancy differences observed on X promoters may bear on mechanisms of X chromosome dosage compensation in the soma, and chromosome-wide repression of X in the germline.

Indexed as

Genes, X-LinkedPromoter Regions, GeneticAnimalsBase CompositionCaenorhabditis elegansDosage Compensation, GeneticMaleModels, GeneticMolecular Sequence DataNucleosomesOperonNucleosomes

Identifiers

PMID21177966
PMCPMC3032927

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.