Evidence map›Paper›PMID 21764939›Full record

ArticleJournal of bacteriology2011

Staphylococcus lugdunensis IsdG liberates iron from host heme.

Kathryn P Haley, Eric M Janson, Simon Heilbronner, Timothy J Foster, Eric P Skaar

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

32 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Review
  3. The roles of Asn7 and Trp67 in tuning the ferryl haem form ofDalton transactions (Cambridge, England : 2003) · 2026
    Article
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  5. Article
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  7. Article
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  12. Article
  13. Article
  14. Article
  15. Article
  16. Heme Synthesis and Acquisition in Bacterial Pathogens.Journal of molecular biology · 2016
    Review
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 3 institutions in 2 countries.

Kathryn P HaleyDepartment of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1161 21st Avenue South, MCN A-5102, Nashville, TN 37232-2363, USA.
Eric M Janson
Simon Heilbronner
Timothy J Foster
Eric P Skaar
Trinity College Dublin · IEVanderbilt University Medical Center · USVanderbilt University · US

Funding

Pathobiology of heme inducible transporters in Gram positive pathogensR01AI073843 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2009 to 2025
$5.9M
Mechanism and function of heme-iron utilization in staphylococcal pathogenesisR01AI069233 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2006 to 2020
$5.6M
NIAID NIH HHS AI073843NIAID NIH HHS AI69233NIAID NIH HHS R01 AI069233NIAID NIH HHS R01 AI073843PHS HHS 5 T32 A107611-10
6 · The paper itself

Abstract

Staphylococcus lugdunensis is often found as part of the normal flora of human skin but has the potential to cause serious infections even in healthy individuals. It remains unclear what factors enable S. lugdunensis to transition from a skin commensal to an invasive pathogen. Analysis of the complete genome reveals a putative iron-regulated surface determinant (Isd) system encoded within S. lugdunensis. In other bacteria, the Isd system permits the utilization of host heme as a source of nutrient iron to facilitate bacterial growth during infection. In this study, we establish that S. lugdunensis expresses an iron-regulated IsdG-family heme oxygenase that binds and degrades heme. Heme degradation by IsdG results in the release of free iron and the production of the chromophore staphylobilin. IsdG-mediated heme catabolism enables the use of heme as a sole source of iron, establishing IsdG as a pathophysiologically relevant heme oxygenase in S. lugdunensis. Together these findings offer insight into how S. lugdunensis fulfills its nutritional requirements while invading host tissues and establish the S. lugdunensis Isd system as being involved in heme-iron utilization.

Indexed as

Amino Acid SequenceHemeHumansIronMolecular Sequence DataOxidation-ReductionOxygenasesPhylogenySequence AlignmentSequence Homology, Amino AcidStaphylococcus lugdunensisHemeIronOxygenases

Identifiers

PMID21764939
PMCPMC3165669
OpenAlexW2164777902

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.