Evidence map›Paper›PMID 23239989›Full record

ArticlePloS one2012

Exploration of chlamydial type III secretion system reconstitution in Escherichia coli.

Xiaofeng Bao, Wandy L Beatty, Huizhou Fan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Type III Secretion inMicrobiology and molecular biology reviews : MMBR · 2023
    Review
  2. The Repressor Function of theJournal of bacteriology · 2020
    Article
  3. Development and functional characterization of extrahepatic cholangiocyte lines from normal rats.Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2015
    Article
  4. Review
  5. Review
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

3 authors at 2 institutions in 2 countries.

Xiaofeng BaoDepartment of Pharmacology, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway, New Jersey, United States of America.
Wandy L Beatty
Huizhou Fan
Nantong University · CNWashington University in St. Louis · US

Funding

Peptide Deformylase Inhibitor LBM415 for Sexually Transmitted InfectionsR33AI071954 · NIAID · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI FAN, HUIZHOU · 2009 to 2011
$971k
Peptide Deformylase Inhibitor LBM415 for Sexually Transmitted InfectionsR21AI071954 · NIAID · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI FAN, HUIZHOU · 2007 to 2008
$408k
NIAID NIH HHS AI071954NIAID NIH HHS R21 AI071954NIAID NIH HHS R33 AI071954
6 · The paper itself

Abstract

backgroundType III secretion system is a virulent factor for many pathogens, and is thought to play multiple roles in the development cycle and pathogenesis of chlamydia, an important human pathogen. However, due to the obligate intracellular parasitical nature of chlamydiae and a lack of convenient genetic methodology for the organisms, very limited approaches are available to study the chlamydial type III secretion system. In this study, we explored the reconstitution of a chlamydial type III secretion in Escherichia coli.

resultsWe successfully cloned all 6 genomic DNA clusters of the chlamydial type III secretion system into three bacterial plasmids. 5 of the 6 clusters were found to direct mRNA synthesis from their own promoters in Escherichia coli transformed with the three plasmids. Cluster 5 failed to express mRNA using its own promoters. However, fusion of cluster 5 to cluster 6 resulted in the expression of cluster 5 mRNA. Although only two of the type III secretion system proteins were detected transformed E. coli due to limited antibody availability, type III secretion system-like structures were detected in ultrathin sections in a small proportion of transformed E. coli.

conclusionsWe have successfully generated E. coli expressing all genes of the chlamydial type III secretion system. This serves as a foundation for optimal expression and assembly of the recombinant chlamydial type III secretion system, which may be extremely useful for the characterization of the chlamydial type III secretion system and for studying its role in chlamydial pathogenicity.

Indexed as

Chlamydia trachomatisEscherichia coliGene Expression Regulation, BacterialBacterial Secretion SystemsChlamydia InfectionsCloning, MolecularHumansMultigene FamilyBacterial Secretion Systems

Identifiers

PMID23239989
PMCPMC3519817
OpenAlexW2007705174

What OpenQuestion holds

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LicenceCC BY
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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.