Evidence map›Paper›PMID 23240084›Full record

ArticleeLife2012

Chromatin is an ancient innovation conserved between Archaea and Eukarya.

Ron Ammar, Dax Torti, Kyle Tsui, Marinella Gebbia, Tanja Durbic, Gary D Bader, Guri Giaever, Corey Nislow

Open access · goldAbstract read
In one paragraph

Article in eLife, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

61 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  11. How Do Thermophiles Organize Their Genomes?Microbes and environments · 2024
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  20. Article

1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Ron AmmarDepartment of Molecular Genetics , University of Toronto , Toronto , Canada ; Donnelly Centre , University of Toronto , Toronto , Canada.
Dax Torti
Kyle Tsui
Marinella Gebbia
Tanja Durbic
Gary D Bader
Guri Giaever
Corey Nislow
University of Toronto · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

The eukaryotic nucleosome is the fundamental unit of chromatin, comprising a protein octamer that wraps ∼147 bp of DNA and has essential roles in DNA compaction, replication and gene expression. Nucleosomes and chromatin have historically been considered to be unique to eukaryotes, yet studies of select archaea have identified homologs of histone proteins that assemble into tetrameric nucleosomes. Here we report the first archaeal genome-wide nucleosome occupancy map, as observed in the halophile Haloferax volcanii. Nucleosome occupancy was compared with gene expression by compiling a comprehensive transcriptome of Hfx. volcanii. We found that archaeal transcripts possess hallmarks of eukaryotic chromatin structure: nucleosome-depleted regions at transcriptional start sites and conserved -1 and +1 promoter nucleosomes. Our observations demonstrate that histones and chromatin architecture evolved before the divergence of Archaea and Eukarya, suggesting that the fundamental role of chromatin in the regulation of gene expression is ancient.DOI:http://dx.doi.org/10.7554/eLife.00078.001.

Indexed as

Gene Expression Regulation, ArchaealGenome, ArchaealBiological EvolutionChromatin Assembly and DisassemblyDNA ReplicationEukaryotic CellsGene Expression ProfilingHaloferax volcaniiHistonesMolecular Sequence AnnotationNucleosomesPromoter Regions, GeneticTranscription FactorsTranscription, GeneticTranscription Initiation SiteHistonesNucleosomesTranscription FactorsArchaeaChromatinHaloferax volcaniiNucleosomeOtherRNA-seqTranscriptome

Identifiers

PMID23240084
PMCPMC3510453
OpenAlexW2154653939

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.