Evidence map›Paper›PMID 29409696›Full record

ArticleInternational journal of medical microbiology : IJMM2018

Fur regulation of Staphylococcus aureus heme oxygenases is required for heme homeostasis.

Lisa J Lojek, Allison J Farrand, Andy Weiss, Eric P Skaar

Open access · greenAbstract read
In one paragraph

Article in International journal of medical microbiology : IJMM, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.5field-weighted citation impact, top 38% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. The roles of Asn7 and Trp67 in tuning the ferryl haem form ofDalton transactions (Cambridge, England : 2003) · 2026
    Article
  2. Review
  3. Heme and immunity: The heme oxygenase dichotomy.Journal of inorganic biochemistry · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. 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

4 authors at 1 institution in 1 country.

Lisa J LojekDepartment of Pathology, Microbiology & Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA; Graduate Program in Microbiology & Immunology, Vanderbilt University, Nashville, TN, 37232, USA.
Allison J FarrandDepartment of Pathology, Microbiology & Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
Andy WeissDepartment of Pathology, Microbiology & Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
Eric P SkaarDepartment of Pathology, Microbiology & Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA. Electronic address: eric.skaar@vanderbilt.edu.
Vanderbilt University Medical Center · US

Funding

TRAINING PROGRAM IN CELLULAR, BIOCHEMICAL, &MOLECULAR ST32GM008554 · NIGMS · VANDERBILT UNIVERSITY · PI PATTON, JAMES G. · 1995 to 2020
$7.4M
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 R01 AI069233NIAID NIH HHS R01 AI073843NIGMS NIH HHS T32 GM008554
6 · The paper itself

Abstract

Heme is a cofactor that is essential for cellular respiration and for the function of many enzymes. If heme levels become too low within the cell, S. aureus switches from producing energy via respiration to producing energy by fermentation. S. aureus encodes two heme oxygenases, IsdI and IsdG, which cleave the porphyrin heme ring releasing iron for use as a nutrient source. Both isdI and isdG are only expressed under low iron conditions and are regulated by the canonical Ferric Uptake Regulator (Fur). Here we demonstrate that unregulated expression of isdI and isdG within S. aureus leads to reduced growth under low iron conditions. Additionally, the constitutive expression of these enzymes leads to decreased heme abundance in S. aureus, an increase in the fermentation product lactate, and increased resistance to gentamicin. This work demonstrates that S. aureus has developed tuning mechanisms, such as Fur regulation, to ensure that the cell has sufficient quantities of heme for efficient ATP production through aerobic respiration.

Indexed as

Gene Expression Regulation, BacterialHomeostasisAerobiosisBacterial ProteinsHemeHeme Oxygenase (Decyclizing)IronMixed Function OxygenasesOxygenasesRepressor ProteinsStaphylococcus aureusBacterial Proteinsferric uptake regulating proteins, bacterialHemeHeme Oxygenase (Decyclizing)IronIsdG protein, Staphylococcus aureusIsdI protein, Staphylococcus aureusMixed Function OxygenasesOxygenasesRepressor ProteinsHeme homeostasisHeme oxygenaseIronIsdG familyStaphylococcus aureus

Identifiers

PMID29409696
PMCPMC6070430
OpenAlexW2792656751

What OpenQuestion holds

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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.