Evidence map›Paper›PMID 18643935›Full record

ArticleMolecular microbiology2008

Staphylococcus aureus haem oxygenases are differentially regulated by iron and haem.

Michelle L Reniere, Eric P Skaar

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

60 citing papers in PubMed, 84 citations in OpenAlex.

  1. Review
  2. The roles of Asn7 and Trp67 in tuning the ferryl haem form ofDalton transactions (Cambridge, England : 2003) · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Stabilization of the Ferryl═Oxoheme Form ofJournal of the American Chemical Society · 2025
    Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. The Role of Iron inFrontiers in cell and developmental biology · 2022
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Fur regulation of Staphylococcus aureus heme oxygenases is required for heme homeostasis.International journal of medical microbiology : IJMM · 2018
    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

2 authors at 2 institutions in 1 country.

Michelle L ReniereDepartment of Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232-2363, USA.
Eric P Skaar
Vanderbilt University · USVanderbilt University Medical Center · US

Funding

TRAINING GRANT IN MECHANISMS OF VASCULAR DISEASET32HL007751 · NHLBI · VANDERBILT UNIVERSITY · PI BOCK, PAUL E · 1994 to 2014
$6.6M
Mechanism and function of heme-iron utilization in staphylococcal pathogenesisR01AI069233 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2006 to 2020
$5.6M
NHLBI NIH HHS 5 T32 HL07751NHLBI NIH HHS T32 HL007751NIAID NIH HHS AI69233NIAID NIH HHS R01 AI069233
6 · The paper itself

Abstract

Iron acquisition is a vital process for most pathogenic bacteria, as iron is a limiting nutrient during infection. Staphylococcus aureus, an increasingly important pathogen, acquires iron from host haem via elaboration of the iron-regulated surface determinant system (Isd). IsdG and IsdI are haem oxygenases that have been proposed to degrade exogenous haem in the bacterial cytoplasm as a mechanism to liberate free iron for use as a nutrient source. Herein, we report that IsdG and IsdI are both important for S. aureus growth on haemin as a sole iron source and are necessary for full S. aureus pathogenesis. Investigations into the regulation of these enzymes revealed that IsdG and IsdI are differentially regulated by iron and haem through both transcriptional and post-transcriptional mechanisms. Additionally, IsdI was found to be expressed in infected tissues at the sites of abscess formation, suggesting that abscesses are iron-starved microenvironments inside the host. These findings suggest that S. aureus differentially regulates IsdG and IsdI in response to alterations in iron and haem availability during infection.

Indexed as

Gene Expression Regulation, BacterialAbscessAnimalsBacterial ProteinsHemeIronMiceMixed Function OxygenasesOperonOxygenasesStaphylococcal InfectionsStaphylococcus aureusBacterial ProteinsHemeIronIsdG protein, Staphylococcus aureusIsdI protein, Staphylococcus aureusMixed Function OxygenasesOxygenases

Identifiers

PMID18643935
PMCPMC2597461
OpenAlexW2011450595

What OpenQuestion holds

Textmetadata
LicenceTDM
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.