Evidence map›Paper›PMID 22004526›Full record

ArticleBMC genomics2011

Whole genome analysis of linezolid resistance in Streptococcus pneumoniae reveals resistance and compensatory mutations.

Dewan S Billal, Jie Feng, Philippe Leprohon, Danielle Légaré, Marc Ouellette

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 79 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Role of PatAB Transporter in Efflux of Levofloxacin inAntibiotics (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Mechanisms of antibiotic action shape the fitness landscapes of resistance mutations.Computational and structural biotechnology journal · 2022
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Resistance in Vancomycin-Resistant Enterococci.Infectious disease clinics of North America · 2020
    Review
  14. Article
  15. Molecular Analysis of Linezolid-Resistant Clinical Isolates ofAntimicrobial agents and chemotherapy · 2019
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 2 institutions in 2 countries.

Dewan S BillalCentre de recherche en Infectiologie du Centre de recherche du CHUL, Infectiologie et Immunologie, Faculté de Médecine, Université Laval, Québec, Canada.
Jie Feng
Philippe Leprohon
Danielle Légaré
Marc Ouellette
Centre hospitalier de l'Université Laval · CAInstitute of Zoology · CN

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundSeveral mutations were present in the genome of Streptococcus pneumoniae linezolid-resistant strains but the role of several of these mutations had not been experimentally tested. To analyze the role of these mutations, we reconstituted resistance by serial whole genome transformation of a novel resistant isolate into two strains with sensitive background. We sequenced the parent mutant and two independent transformants exhibiting similar minimum inhibitory concentration to linezolid.

resultsComparative genomic analyses revealed that transformants acquired G2576T transversions in every gene copy of 23S rRNA and that the number of altered copies correlated with the level of linezolid resistance and cross-resistance to florfenicol and chloramphenicol. One of the transformants also acquired a mutation present in the parent mutant leading to the overexpression of an ABC transporter (spr1021). The acquisition of these mutations conferred a fitness cost however, which was further enhanced by the acquisition of a mutation in a RNA methyltransferase implicated in resistance. Interestingly, the fitness of the transformants could be restored in part by the acquisition of altered copies of the L3 and L16 ribosomal proteins and by mutations leading to the overexpression of the spr1887 ABC transporter that were present in the original linezolid-resistant mutant.

conclusionsOur results demonstrate the usefulness of whole genome approaches at detecting major determinants of resistance as well as compensatory mutations that alleviate the fitness cost associated with resistance.

Indexed as

Genome, BacterialAcetamidesAnti-Bacterial AgentsDNA, BacterialDrug Resistance, BacterialLinezolidMicrobial Sensitivity TestsMutationOxazolidinonesRNA, Ribosomal, 23SSequence Analysis, DNAStreptococcus pneumoniaeTransformation, BacterialAcetamidesAnti-Bacterial AgentsDNA, BacterialLinezolidOxazolidinonesRNA, Ribosomal, 23S

Identifiers

PMID22004526
PMCPMC3212830
OpenAlexW2162431276

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.