Evidence map›Paper›PMID 23571543›Full record

ArticleAntimicrobial agents and chemotherapy2013

Heteroresistance to fosfomycin is predominant in Streptococcus pneumoniae and depends on the murA1 gene.

Hansjürg Engel, Javier Gutiérrez-Fernández, Christine Flückiger, Martín Martínez-Ripoll, Kathrin Mühlemann, Juan A Hermoso, Markus Hilty, Lucy J Hathaway

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  5. Article
  6. Article
  7. Antimicrobial agents and chemotherapy · 2020
    Article
  8. Review
  9. Article
  10. Review
  11. Fosfomycin.Clinical microbiology reviews · 2016
    Review
  12. Review
  13. Article
  14. Article
  15. 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

8 authors at 3 institutions in 2 countries.

Hansjürg EngelInstitute for Infectious Diseases, Faculty of Medicine, University of Bern, Bern, Switzerland.
Javier Gutiérrez-Fernández
Christine Flückiger
Martín Martínez-Ripoll
Kathrin Mühlemann
Juan A Hermoso
Markus Hilty
Lucy J Hathaway
University of Bern · CHInstituto de Química Física Blas Cabrera · ESUniversity Hospital of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fosfomycin targets the first step of peptidoglycan biosynthesis in Streptococcus pneumoniae catalyzed by UDP-N-acetylglucosamine enolpyruvyltransferase (MurA1). We investigated whether heteroresistance to fosfomycin occurs in S. pneumoniae. We found that of 11 strains tested, all but 1 (Hungary(19A)) displayed heteroresistance and that deletion of murA1 abolished heteroresistance. Hungary(19A) differs from the other strains by a single amino acid substitution in MurA1 (Ala(364)Thr). To test whether this substitution is responsible for the lack of heteroresistance, it was introduced into strain D39. The heteroresistance phenotype of strain D39 was not changed. Furthermore, no relevant structural differences between the MurA1 crystal structures of heteroresistant strain D39 and nonheteroresistant strain Hungary(19A) were found. Our results reveal that heteroresistance to fosfomycin is the predominant phenotype of S. pneumoniae and that MurA1 is required for heteroresistance to fosfomycin but is not the only factor involved. The findings provide a caveat for any future use of fosfomycin in the treatment of pneumococcal infections.

Indexed as

Alkyl and Aryl TransferasesAnti-Bacterial AgentsCrystallizationDrug Resistance, BacterialFosfomycinHumansHungaryMicrobial Sensitivity TestsModels, MolecularMolecular Sequence DataMutationPneumococcal InfectionsSequence Analysis, DNAStreptococcus pneumoniaeAlkyl and Aryl TransferasesAnti-Bacterial AgentsFosfomycinUDP-N-acetylglucosamine 1-carboxyvinyltransferase

Identifiers

PMID23571543
PMCPMC3716182
OpenAlexW2012009221

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.