Evidence map›Paper›PMID 16980464›Full record

ArticleJournal of bacteriology2006

Comparative and functional genomic analyses of iron transport and regulation in Leptospira spp.

H Louvel, S Bommezzadri, N Zidane, C Boursaux-Eude, S Creno, A Magnier, Z Rouy, C Médigue, I Saint Girons, C Bouchier and 1 more

Abstract read
In one paragraph

Article in Journal of bacteriology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
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

38 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Evidence for a Putative Regulatory System Consisting of an ECF σInternational journal of molecular sciences · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Creating a Library of Random Transposon Mutants in Leptospira.Methods in molecular biology (Clifton, N.J.) · 2020
    Article
  11. Article
  12. The sigma factor σMolecular microbiology · 2018
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. The leptospiral outer membrane.Current topics in microbiology and immunology · 2015
    Review
  19. Article
  20. 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

11 authors.

H LouvelLaboratoire des Spirochètes, Institut Pasteur, 28 rue du docteur Roux, 75724 Paris Cedex 15, France.
S Bommezzadri
N Zidane
C Boursaux-Eude
S Creno
A Magnier
Z Rouy
C Médigue
I Saint Girons
C Bouchier
M Picardeau

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The spirochetes of the Leptospira genus contain saprophytic and pathogenic members, the latter being responsible for leptospirosis. Despite the recent sequencing of the genome of the pathogen L. interrogans, the slow growth of these bacteria, their virulence in humans, and a lack of genetic tools make it difficult to work with these pathogens. In contrast, the development of numerous genetic tools for the saprophyte L. biflexa enables its use as a model bacterium. Leptospira spp. require iron for growth. In this work, we show that Leptospira spp. can acquire iron from different sources, including siderophores. A comparative genome analysis of iron uptake systems and their regulation in the saprophyte L. biflexa and the pathogen L. interrogans is presented in this study. Our data indicated that, for instance, L. biflexa and L. interrogans contain 8 and 12 genes, respectively, whose products share homology with proteins that have been shown to be TonB-dependent receptors. We show that some genes involved in iron uptake were differentially expressed in response to iron. In addition, we were able to disrupt several putative genes involved in iron acquisition systems or iron regulation in L. biflexa. Comparative genomics, in combination with gene inactivation, gives us significant functional information on iron homeostasis in Leptospira spp.

Indexed as

Genes, BacterialAmino Acid SequenceBacterial Outer Membrane ProteinsBacterial ProteinsBiological TransportGene Expression Regulation, BacterialIronLeptospiraLeptospira interrogansMolecular Sequence DataRepressor ProteinsSequence AlignmentSiderophoresBacterial Outer Membrane ProteinsBacterial Proteinsferric uptake regulating proteins, bacterialIronRepressor ProteinsSiderophoresTLR protein, bacteria

Identifiers

PMID16980464
PMCPMC1636298

What OpenQuestion holds

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Registered trials

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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.