Evidence map›Paper›PMID 26123800›Full record

ArticleInfection and immunity2015

An Iron-Regulated Autolysin Remodels the Cell Wall To Facilitate Heme Acquisition in Staphylococcus lugdunensis.

Allison J Farrand, Kathryn P Haley, Nichole M Lareau, Simon Heilbronner, John A McLean, Timothy Foster, Eric P Skaar

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

17 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Autolysin-mediated peptidoglycan hydrolysis is required for the surface display ofProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. The iron-regulated surface determinant B (IsdB) protein fromThe Journal of biological chemistry · 2020
    Article
  11. Article
  12. Review
  13. Review
  14. Transition Metals and Virulence in Bacteria.Annual review of genetics · 2016
    Review
  15. Heme Synthesis and Acquisition in Bacterial Pathogens.Journal of molecular biology · 2016
    Review
  16. Article
  17. 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

7 authors at 4 institutions in 2 countries.

Allison J FarrandDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Kathryn P HaleyDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Nichole M LareauDepartment of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, and Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, Tennessee, USA.
Simon HeilbronnerMicrobiology Department, Moyne Institute of Preventive Medicine, Trinity College, Dublin, Ireland.
John A McLeanDepartment of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, and Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, Tennessee, USA.
Timothy FosterMicrobiology Department, Moyne Institute of Preventive Medicine, Trinity College, Dublin, Ireland.
Eric P SkaarDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA Tennessee Valley Healthcare Systems, U.S. Department of Veterans Affairs, Nashville, Tennessee, USA eric.skaar@vanderbilt.edu.
Vanderbilt University · USTrinity College Dublin · IEVA Tennessee Valley Healthcare System · USVirginia Innovation Partnership Corporation · US

Funding

Host-mediated zinc sequestration during Acinetobacter baumannii infectionR01AI101171 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI WALTER J. CHAZIN, DAVID P. GIEDROC · 2013 to 2026
$8.2M
MOLECULAR BIOPHYSICS TRAINING PROGRAM AT VANDERBILTT32GM008320 · NIGMS · VANDERBILT UNIVERSITY · PI CHAZIN, WALTER J. · 1989 to 2023
$7.9M
Chemistry-Biology Interface Training GrantT32GM065086 · NIGMS · VANDERBILT UNIVERSITY · PI BACHMANN, BRIAN O, SULIKOWSKI, GARY ALLEN · 2002 to 2022
$7.0M
Mechanism and function of heme-iron utilization in staphylococcal pathogenesisR01AI069233 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2006 to 2020
$5.6M
New Methodologies for Accelerating Natural Product DiscoveryR01GM092218 · NIGMS · VANDERBILT UNIVERSITY · PI BACHMANN, BRIAN O, MCLEAN, JOHN ALAN · 2010 to 2018
$2.8M
NIAID NIH HHS R01 AI069233NIAID NIH HHS R01 AI101171NIGMS NIH HHS 5RT32GM065086NIGMS NIH HHS R01 GM092218NIGMS NIH HHS R01GM092218NIGMS NIH HHS T32 GM008320NIGMS NIH HHS T32 GM065086
6 · The paper itself

Abstract

Bacteria alter their cell surface in response to changing environments, including those encountered upon invasion of a host during infection. One alteration that occurs in several Gram-positive pathogens is the presentation of cell wall-anchored components of the iron-regulated surface determinant (Isd) system, which extracts heme from host hemoglobin to fulfill the bacterial requirement for iron. Staphylococcus lugdunensis, an opportunistic pathogen that causes infective endocarditis, encodes an Isd system. Unique among the known Isd systems, S. lugdunensis contains a gene encoding a putative autolysin located adjacent to the Isd operon. To elucidate the function of this putative autolysin, here named IsdP, we investigated its contribution to Isd protein localization and hemoglobin-dependent iron acquisition. S. lugdunensis IsdP was found to be iron regulated and cotranscribed with the Isd operon. IsdP is a specialized peptidoglycan hydrolase that cleaves the stem peptide and pentaglycine crossbridge of the cell wall and alters processing and anchoring of a major Isd system component, IsdC. Perturbation of IsdC localization due to isdP inactivation results in a hemoglobin utilization growth defect. These studies establish IsdP as an autolysin that functions in heme acquisition and describe a role for IsdP in cell wall reorganization to accommodate nutrient uptake systems during infection.

Indexed as

Bacterial ProteinsCell WallFluorescent Antibody TechniqueImmunoblottingIronMass SpectrometryN-Acetylmuramoyl-L-alanine AmidaseReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionStaphylococcal InfectionsStaphylococcus lugdunensisBacterial ProteinsIronN-Acetylmuramoyl-L-alanine Amidase

Identifiers

PMID26123800
PMCPMC4534641
OpenAlexW2146597922

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.