Evidence map›Paper›PMID 23094235›Full record

ArticleMobile genetic elements2012

Harnessing the power of transposon mutagenesis for antibacterial target identification and evaluation.

Timothy C Meredith, Hao Wang, Patrick Beaulieu, Angelika Gründling, Terry Roemer

Open access · bronzeAbstract read
In one paragraph

Article in Mobile genetic elements, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-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, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Structure-Based Discovery of Lipoteichoic Acid Synthase Inhibitors.Journal of chemical information and modeling · 2022
    Article
  6. Review
  7. Ftsh Sensitizes Methicillin-ResistantAntibiotics (Basel, Switzerland) · 2021
    Article
  8. Article
  9. Antibacterial photosensitization through activation of coproporphyrinogen oxidase.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  10. Article
  11. Article
  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

5 authors at 3 institutions in 4 countries.

Timothy C MeredithInfectious Diseases Division; Merck Frosst Center for Therapeutic Research; Kirkland, Quebec, Canada.
Hao Wang
Patrick Beaulieu
Angelika Gründling
Terry Roemer
Office of Infectious Diseases · USCzech Academy of Sciences, Institute of Microbiology · CZMerck Canada Inc. (Canada) · CA

Funding

European Research Council 260371
6 · The paper itself

Abstract

Determining the mechanism of action of bacterial growth inhibitors can be a formidable challenge in the progression of small molecules into antibacterial therapies. To help address this bottleneck, we have developed a robust transposon mutagenesis system using a suite of outward facing promoters in order to generate a comprehensive range of expression genotypes in Staphylococcus aureus from which to select defined compound-resistant transposon insertion mutants. Resistance stemming from either gene or operon over/under-expression, in addition to deletion, provides insight into multiple factors that contribute to a compound's observed activity, including means of cell envelope penetration and susceptibility to efflux. By profiling the entire resistome, the suitability of an antibacterial target itself is also evaluated, sometimes with unanticipated results. We herein show that for the staphylococcal signal peptidase (SpsB) inhibitors, modulating expression of lipoteichoic acid synthase (LtaS) confers up to a 100-fold increase in the minimal inhibitory concentration. As similarly efficient transposition systems are or will become established in other bacteria and cell types, we discuss the utility, limitations and future promise of Tnp mutagenesis for determining both a compound's mechanism of action and in the evaluation of novel targets.

Identifiers

PMID23094235
PMCPMC3469428
OpenAlexW2071364189

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.