Evidence map›Paper›PMID 29757411›Full record

ArticleNucleic acids research2018

Modulation of H-NS transcriptional silencing by magnesium.

W Ryan Will, Patrick J Whitham, Philip J Reid, Ferric C Fang

Abstract read
In one paragraph

Article in Nucleic acids research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
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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

4 authors.

W Ryan WillDepartment of Laboratory Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.
Patrick J WhithamDepartment of Chemistry, University of Washington, Seattle, WA 98195, USA.
Philip J ReidDepartment of Chemistry, University of Washington, Seattle, WA 98195, USA.
Ferric C FangDepartment of Laboratory Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.

Funding

Typhoid Pathogenesis and ImmunityR01AI112640 · NIAID · UNIVERSITY OF WASHINGTON · PI FANG, FERRIC C · 2015 to 2019
$2.1M
Silencing and Counter-Silencing of Salmonella Virulence GenesR01AI101084 · NIAID · UNIVERSITY OF WASHINGTON · PI FANG, FERRIC C · 2012 to 2015
$1.5M
NIAID NIH HHS R01 AI101084NIAID NIH HHS R01 AI112640
6 · The paper itself

Abstract

The bacterial histone-like protein H-NS silences AT-rich DNA, binding DNA as 'stiffened' filaments or 'bridged' intrastrand loops. The switch between these modes has been suggested to depend on the concentration of divalent cations, in particular Mg2+, with elevated Mg2+ concentrations associated with a transition to bridging. Here we demonstrate that the observed binding mode is a function of the local concentration of H-NS and its cognate binding sites, as well as the affinity of the interactions between them. Mg2+ does not control a binary switch between these two modes but rather modulates the affinity of this interaction, inhibiting the DNA-binding and silencing activity of H-NS in a continuous linear fashion. The direct relationship between conditions that favor stiffening and transcriptional silencing activity suggests that although both modes can occur in the cell, stiffening is the predominant mode of binding at silenced genes.

Indexed as

Gene SilencingMagnesiumTranscription, GeneticBacterial ProteinsDNADNA-Binding ProteinsProtein BindingBacterial ProteinsDNADNA-Binding ProteinsH-NS protein, bacteriaMagnesium

Identifiers

PMID29757411
PMCPMC6009595

What OpenQuestion holds

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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.