Evidence map›Paper›PMID 21097887›Full record

ArticleNucleic acids research2011

Direct and indirect effects of H-NS and Fis on global gene expression control in Escherichia coli.

Christina Kahramanoglou, Aswin S N Seshasayee, Ana I Prieto, David Ibberson, Sabine Schmidt, Jurgen Zimmermann, Vladimir Benes, Gillian M Fraser, Nicholas M Luscombe

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 181 papers.

0numbers the graph read from it
0cells of the map it votes in
181citing papers in PubMed
9.5field-weighted citation impact, top 2% 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

181 citing papers in PubMed, 315 citations in OpenAlex.

  1. Article
  2. Article
  3. Acquired mutations in transcriptional regulatorAntimicrobial agents and chemotherapy · 2026
    Article
  4. Article
  5. Article
  6. A plasmid-encoded H-NS protein selectively binds its own plasmid.bioRxiv : the preprint server for biology · 2026
    Article
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  13. Review
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  20. Review

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

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

9 authors at 5 institutions in 4 countries.

Christina KahramanoglouDepartment of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK.
Aswin S N Seshasayee
Ana I Prieto
David Ibberson
Sabine Schmidt
Jurgen Zimmermann
Vladimir Benes
Gillian M Fraser
Nicholas M Luscombe
ID Genomics (United States) · USEuropean Bioinformatics Institute · GBUniversity of Cambridge · GBEuropean Molecular Biology Laboratory · ESWellcome Trust · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E01075X/1Biotechnology and Biological Sciences Research Council BB/E011489/1
6 · The paper itself

Abstract

Nucleoid-associated proteins (NAPs) are global regulators of gene expression in Escherichia coli, which affect DNA conformation by bending, wrapping and bridging the DNA. Two of these--H-NS and Fis--bind to specific DNA sequences and structures. Because of their importance to global gene expression, the binding of these NAPs to the DNA was previously investigated on a genome-wide scale using ChIP-chip. However, variation in their binding profiles across the growth phase and the genome-scale nature of their impact on gene expression remain poorly understood. Here, we present a genome-scale investigation of H-NS and Fis binding to the E. coli chromosome using chromatin immunoprecipitation combined with high-throughput sequencing (ChIP-seq). By performing our experiments under multiple time-points during growth in rich media, we show that the binding regions of the two proteins are mutually exclusive under our experimental conditions. H-NS binds to significantly longer tracts of DNA than Fis, consistent with the linear spread of H-NS binding from high- to surrounding lower-affinity sites; the length of binding regions is associated with the degree of transcriptional repression imposed by H-NS. For Fis, a majority of binding events do not lead to differential expression of the proximal gene; however, it has a significant indirect effect on gene expression partly through its effects on the expression of other transcription factors. We propose that direct transcriptional regulation by Fis is associated with the interaction of tandem arrays of Fis molecules to the DNA and possible DNA bending, particularly at operon-upstream regions. Our study serves as a proof-of-principle for the use of ChIP-seq for global DNA-binding proteins in bacteria, which should become significantly more economical and feasible with the development of multiplexing techniques.

Indexed as

Gene Expression Regulation, BacterialBinding SitesChromosomes, BacterialDNA, BacterialEscherichia coliEscherichia coli ProteinsFactor For Inversion Stimulation ProteinFimbriae ProteinsGene DeletionTranscription, GeneticDNA, BacterialEscherichia coli ProteinsFactor For Inversion Stimulation ProteinFimbriae ProteinsFimG protein, E coliFis protein, E coli

Identifiers

PMID21097887
PMCPMC3064808
OpenAlexW2113843263

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.