Evidence map›Paper›PMID 24069939›Full record

ArticleBMC microbiology2013

A structural comparison of lipopolysaccharide biosynthesis loci of Legionella pneumophila serogroup 1 strains.

Markus Petzold, Alexander Thürmer, Susan Menzel, Johan W Mouton, Klaus Heuner, Christian Lück

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.2field-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

18 citing papers in PubMed, 22 citations in OpenAlex.

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  6. mBio · 2025
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  7. Lipopolysaccharide ofInternational journal of molecular sciences · 2023
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  8. Presence of Viable, Clinically RelevantMicrobiology spectrum · 2022
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  11. The Role of Lipids inInternational journal of molecular sciences · 2021
    Review
  12. Distribution ofFrontiers in cellular and infection microbiology · 2019
    Article
  13. Article
  14. Review
  15. Article
  16. Article
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  18. 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 4 institutions in 2 countries.

Markus PetzoldInstitute of Medical Microbiology and Hygiene, Faculty of Medicine 'Carl Gustav Carus', University of Technology Dresden, Fetscherstraße 74, Dresden D-01307, Germany. christian.lueck@tu-dresden.de.
Alexander Thürmer
Susan Menzel
Johan W Mouton
Klaus Heuner
Christian Lück
University Hospital Carl Gustav Carus · DEInstitute of Medical Microbiology and Hygiene · DERadboud University Medical Center · NLRobert Koch Institute · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe lipopolysaccharide (LPS) is the major immuno-dominant antigen of all Legionella species including L. pneumophila. Its diversity is the basis for the classification of L. pneumophila into serogroups and monoclonal subgroups and is thought to be involved in strain specific virulence. The understanding of the genetic basis of the LPS-antigen is incomplete. Thus, we analyzed the genetic locus involved in LPS-biosynthesis of L. pneumophila serogroup 1 (Sg1) strains with the focus on strain specific gene composition.

resultsThe LPS-biosynthesis loci of 14 L. pneumophila Sg1 strains comprise two distinct regions: A 15 kb region containing LPS-biosynthesis genes that can be found in all L. pneumophila strains and a Sg1-specific 18 kb region. The 15 kb region is highly conserved among Sg1 strains as reflected by high homologies of single ORFs and by a consistent ORF arrangement. In contrast, the Sg1 specific 18 kb region is variable and partially disrupted by phage related genes. We propose that the region spanning from ORF 6 to ORF 11 of the Sg1-specific region is likely involved in late LPS-modification. Due to the high variability of this small region and various combinations of single ORFs within this region a strain specific LPS-structure could be synthesized including modifications of legionaminic acid derivates.

conclusionsOur data clearly demonstrate that the gene structure of the LPS-biosynthesis locus of L. pneumophila Sg1 strains show significant interstrain variability. These data can be used for further functional analysis of the LPS synthesis to understand pathogenesis and reactivity with monoclonal antibodies. Moreover, variable but strain specific regions can serve as basis for the development of novel genotyping assays.

Indexed as

Genetic LociGenetic VariationBiosynthetic PathwaysDNA, BacterialGene OrderLegionella pneumophilaLipopolysaccharidesMolecular Sequence DataSequence Analysis, DNADNA, BacterialLipopolysaccharides

Identifiers

PMID24069939
PMCPMC3766260
OpenAlexW2115916876

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.