Evidence map›Paper›PMID 17438023›Full record

ArticleInfection and immunity2007

Role of motility and the flhDC Operon in Escherichia coli MG1655 colonization of the mouse intestine.

Eric J Gauger, Mary P Leatham, Regino Mercado-Lubo, David C Laux, Tyrrell Conway, Paul S Cohen

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
2.4field-weighted citation impact, top 13% 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

59 citing papers in PubMed, 92 citations in OpenAlex.

  1. Article
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  10. Mechanisms of uropathogenicScience advances · 2025
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  11. Nutrition ofEcoSal Plus · 2024
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  14. Motility-activating mutations upstream ofMicrobiology spectrum · 2024
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  16. Dissemination of IncI plasmid encodingAntimicrobial agents and chemotherapy · 2023
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  17. Review
  18. Article
  19. Transcriptome analysis of the hepatopancreas from theFrontiers in cellular and infection microbiology · 2023
    Article
  20. Coordination of gene expression with cell size enablesProceedings of the National Academy of Sciences of the United States of America · 2022
    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

6 authors at 2 institutions in 1 country.

Eric J GaugerDepartment of Cell and Molecular Biology, University of Rhode Island, Kingston, RI 02881, USA.
Mary P Leatham
Regino Mercado-Lubo
David C Laux
Tyrrell Conway
Paul S Cohen
University of Rhode Island · USUniversity of Oklahoma · US

Funding

GROWTH AND COLONIZATION OF THE INTESTINE BY E COLIR01AI048945 · NIAID · UNIVERSITY OF OKLAHOMA NORMAN · PI CONWAY, TYRRELL · 2000 to 2008
$3.4M
Growth and Colonization of the Intestine by E. coliR56AI048945 · NIAID · UNIVERSITY OF OKLAHOMA · PI CONWAY, TYRRELL · 2009 to 2009
$462k
NIAID NIH HHS AI 48945NIAID NIH HHS R01 AI048945NIAID NIH HHS R56 AI048945
6 · The paper itself

Abstract

Previously, we reported that the mouse intestine selected mutants of Escherichia coli MG1655 that have improved colonizing ability (M. P. Leatham et al., Infect. Immun. 73:8039-8049, 2005). These mutants grew 10 to 20% faster than their parent in mouse cecal mucus in vitro and 15 to 30% faster on several sugars found in the mouse intestine. The mutants were nonmotile and had deletions of various lengths beginning immediately downstream of an IS1 element located within the regulatory region of the flhDC operon, which encodes the master regulator of flagellum biosynthesis, FlhD(4)C(2). Here we show that during intestinal colonization by wild-type E. coli strain MG1655, 45 to 50% of the cells became nonmotile by day 3 after feeding of the strain to mice and between 80 and 90% of the cells were nonmotile by day 15 after feeding. Ten nonmotile mutants isolated from mice were sequenced, and all were found to have flhDC deletions of various lengths. Despite this strong selection, 10 to 20% of the E. coli MG1655 cells remained motile over a 15-day period, suggesting that there is an as-yet-undefined intestinal niche in which motility is an advantage. The deletions appear to be selected in the intestine for two reasons. First, genes unrelated to motility that are normally either directly or indirectly repressed by FlhD(4)C(2) but can contribute to maximum colonizing ability are released from repression. Second, energy normally used to synthesize flagella and turn the flagellar motor is redirected to growth.

Indexed as

Gene Expression Regulation, BacterialOperonAnimalsCecumDNA-Binding ProteinsEscherichia coliEscherichia coli ProteinsGene DeletionIntestinal MucosaIntestinesIntestine, SmallMaleMiceTrans-ActivatorsDNA-Binding ProteinsEscherichia coli ProteinsflhC protein, E coliflhD protein, E coliTrans-Activators

Identifiers

PMID17438023
PMCPMC1932950
OpenAlexW2120349568

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.