Evidence map›Paper›PMID 20833813›Full record

ArticleJournal of bacteriology2010

Legionella pneumophila strain 130b possesses a unique combination of type IV secretion systems and novel Dot/Icm secretion system effector proteins.

Gunnar N Schroeder, Nicola K Petty, Aurélie Mousnier, Clare R Harding, Adam J Vogrin, Bryan Wee, Norman K Fry, Timothy G Harrison, Hayley J Newton, Nicholas R Thomson and 4 more

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 1 pooled it
11.3field-weighted citation impact, top 1% 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

74 citing papers in PubMed, 1 synthesis or guideline pooled it, 109 citations in OpenAlex.

  1. Pooled it
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  13. TheThe Journal of biological chemistry · 2019
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  19. The Toolbox for Uncovering the Functions ofFrontiers in cellular and infection microbiology · 2017
    Review
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14 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

14 authors at 4 institutions in 2 countries.

Gunnar N SchroederCentre for Molecular Microbiology and Infection, Division of Cell and Molecular Biology, Imperial College, London, United Kingdom.
Nicola K Petty
Aurélie Mousnier
Clare R Harding
Adam J Vogrin
Bryan Wee
Norman K Fry
Timothy G Harrison
Hayley J Newton
Nicholas R Thomson
Scott A Beatson
Gordon Dougan
Elizabeth L Hartland
Gad Frankel
Imperial College London · GBUniversity of Melbourne · AUUniversity of Queensland · AUWellcome Sanger Institute · GB

Funding

Medical Research Council G0700823Wellcome Trust
6 · The paper itself

Abstract

Legionella pneumophila is a ubiquitous inhabitant of environmental water reservoirs. The bacteria infect a wide variety of protozoa and, after accidental inhalation, human alveolar macrophages, which can lead to severe pneumonia. The capability to thrive in phagocytic hosts is dependent on the Dot/Icm type IV secretion system (T4SS), which translocates multiple effector proteins into the host cell. In this study, we determined the draft genome sequence of L. pneumophila strain 130b (Wadsworth). We found that the 130b genome encodes a unique set of T4SSs, namely, the Dot/Icm T4SS, a Trb-1-like T4SS, and two Lvh T4SS gene clusters. Sequence analysis substantiated that a core set of 107 Dot/Icm T4SS effectors was conserved among the sequenced L. pneumophila strains Philadelphia-1, Lens, Paris, Corby, Alcoy, and 130b. We also identified new effector candidates and validated the translocation of 10 novel Dot/Icm T4SS effectors that are not present in L. pneumophila strain Philadelphia-1. We examined the prevalence of the new effector genes among 87 environmental and clinical L. pneumophila isolates. Five of the new effectors were identified in 34 to 62% of the isolates, while less than 15% of the strains tested positive for the other five genes. Collectively, our data show that the core set of conserved Dot/Icm T4SS effector proteins is supplemented by a variable repertoire of accessory effectors that may partly account for differences in the virulences and prevalences of particular L. pneumophila strains.

Indexed as

Genome, BacterialConserved SequenceDNA, BacterialEnvironmental MicrobiologyHumansLegionella pneumophilaLegionnaires' DiseaseMembrane Transport ProteinsMolecular Sequence DataSequence Analysis, DNASequence Homology, Amino AcidVirulence FactorsDNA, BacterialMembrane Transport ProteinsVirulence Factors

Identifiers

PMID20833813
PMCPMC2976443
OpenAlexW2114499229

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.