Evidence map›Paper›PMID 22434426›Full record

ArticleGenome research2012

Unusual combinatorial involvement of poly-A/T tracts in organizing genes and chromatin in Dictyostelium.

Gue Su Chang, Angelika A Noegel, Travis N Mavrich, Rolf Müller, Lynn Tomsho, Elissa Ward, Marius Felder, Cizhong Jiang, Ludwig Eichinger, Gernot Glöckner and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed, 33 citations in OpenAlex.

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  18. Determinants of nucleosome positioning.Nature structural & molecular biology · 2013
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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

12 authors at 5 institutions in 3 countries.

Gue Su ChangCenter for Eukaryotic Gene Regulation and Center for Comparative Genomics and Bioinformatics, Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA.
Angelika A Noegel
Travis N Mavrich
Rolf Müller
Lynn Tomsho
Elissa Ward
Marius Felder
Cizhong Jiang
Ludwig Eichinger
Gernot Glöckner
Stephan C Schuster
B Franklin Pugh
Pennsylvania State University · USUniversity of Cologne · DELeibniz Institute of Freshwater Ecology and Inland Fisheries · DENational Institutes of Health · USTongji University · CN

Funding

High Resolution Mapping of Function Elements in the Yeast GenomeR01HG004160 · NHGRI · PENNSYLVANIA STATE UNIVERSITY, THE · PI PUGH, B FRANKLIN · 2007 to 2022
$5.3M
High Resolution Mapping of Functional Elements in the Yeast GenomeR56HG004160 · NHGRI · PENNSYLVANIA STATE UNIVERSITY, THE · PI PUGH, B FRANKLIN · 2017 to 2017
$300k
NHGRI NIH HHS HG004160NHGRI NIH HHS R01 HG004160NHGRI NIH HHS R56 HG004160
6 · The paper itself

Abstract

Dictyostelium discoideum is an amoebozoa that exists in both a free-living unicellular and a multicellular form. It is situated in a deep branch in the evolutionary tree and is particularly noteworthy in having a very A/T-rich genome. Dictyostelium provides an ideal system to examine the extreme to which nucleotide bias may be employed in organizing promoters, genes, and nucleosomes across a genome. We find that Dictyostelium genes are demarcated precisely at their 5' ends by poly-T tracts and precisely at their 3' ends by poly-A tracts. These tracts are also associated with nucleosome-free regions and are embedded with precisely positioned TATA boxes. Homo- and heteropolymeric tracts of A and T demarcate nucleosome border regions. Together, these findings reveal the presence of a variety of functionally distinct polymeric A/T elements. Strikingly, Dictyostelium chromatin may be organized in di-nucleosome units but is otherwise organized as in animals. This includes a +1 nucleosome in a position that predicts the presence of a paused RNA polymerase II. Indeed, we find a strong phylogenetic relationship between the presence of the NELF pausing factor and positioning of the +1 nucleosome. Pausing and +1 nucleosome positioning may have coevolved in animals.

Indexed as

AnimalsChromatinDictyosteliumGenesNucleosomesPhylogenyPoly APoly TPromoter Regions, GeneticRNA Polymerase IITATA BoxTranscription FactorsChromatinnegative elongation factorNucleosomesPoly Apoly A-TPoly TRNA Polymerase IITranscription Factors

Identifiers

PMID22434426
PMCPMC3371697
OpenAlexW2118975679

What OpenQuestion holds

Textmetadata
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.