Evidence map›Paper›PMID 26283394›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Antagonism screen for inhibitors of bacterial cell wall biogenesis uncovers an inhibitor of undecaprenyl diphosphate synthase.

Maya A Farha, Tomasz L Czarny, Cullen L Myers, Liam J Worrall, Shawn French, Deborah G Conrady, Yang Wang, Eric Oldfield, Natalie C J Strynadka, Eric D Brown

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
17.1field-weighted citation impact, top 1% 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

62 citing papers in PubMed, 104 citations in OpenAlex.

  1. Review
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  3. ThemBio · 2026
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  8. Two codependent routes lead to high-level MRSA.Science (New York, N.Y.) · 2024
    Article
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2 more citing papers are in PubMed but not listed here.

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

10 authors at 3 institutions in 2 countries.

Maya A FarhaDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada L8N 3Z5; Michael G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, ON, Canada L8N 3Z5;
Tomasz L CzarnyDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada L8N 3Z5; Michael G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, ON, Canada L8N 3Z5;
Cullen L MyersDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada L8N 3Z5; Michael G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, ON, Canada L8N 3Z5;
Liam J WorrallDepartment of Biochemistry and Molecular Biology and the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada V6T 1Z3;
Shawn FrenchDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada L8N 3Z5; Michael G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, ON, Canada L8N 3Z5;
Deborah G ConradyDepartment of Biochemistry and Molecular Biology and the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada V6T 1Z3;
Yang WangDepartment of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
Eric OldfieldDepartment of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
Natalie C J StrynadkaDepartment of Biochemistry and Molecular Biology and the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada V6T 1Z3;
Eric D BrownDepartment of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada L8N 3Z5; Michael G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, ON, Canada L8N 3Z5; ebrown@mcmaster.ca.
McMaster University · CAUniversity of British Columbia · CAUniversity of Illinois Urbana-Champaign · US

Funding

Next generation bisphosphonates for chemo- and immuno-therapyR01CA158191 · NCI · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI OLDFIELD, ERIC · 2011 to 2015
$1.6M
Canadian Institutes of Health Research MOP-81330NCI NIH HHS CA 158191NCI NIH HHS R01 CA158191
6 · The paper itself

Abstract

Drug combinations are valuable tools for studying biological systems. Although much attention has been given to synergistic interactions in revealing connections between cellular processes, antagonistic interactions can also have tremendous value in elucidating genetic networks and mechanisms of drug action. Here, we exploit the power of antagonism in a high-throughput screen for molecules that suppress the activity of targocil, an inhibitor of the wall teichoic acid (WTA) flippase in Staphylococcus aureus. Well-characterized antagonism within the WTA biosynthetic pathway indicated that early steps would be sensitive to this screen; however, broader interactions with cell wall biogenesis components suggested that it might capture additional targets. A chemical screening effort using this approach identified clomiphene, a widely used fertility drug, as one such compound. Mechanistic characterization revealed the target was the undecaprenyl diphosphate synthase, an enzyme that catalyzes the synthesis of a polyisoprenoid essential for both peptidoglycan and WTA synthesis. The work sheds light on mechanisms contributing to the observed suppressive interactions of clomiphene and in turn reveals aspects of the biology that underlie cell wall synthesis in S. aureus. Further, this effort highlights the utility of antagonistic interactions both in high-throughput screening and in compound mode of action studies. Importantly, clomiphene represents a lead for antibacterial drug discovery.

Indexed as

Alkyl and Aryl TransferasesAnti-Bacterial AgentsCell WallClomipheneEnzyme InhibitorsMicrobial Sensitivity TestsStaphylococcus aureusAlkyl and Aryl TransferasesAnti-Bacterial AgentsClomipheneEnzyme Inhibitorsundecaprenyl pyrophosphate synthetaseantagonismantibacterialundecaprenyl phosphateUppSwall teichoic acids

Identifiers

PMID26283394
PMCPMC4568241
OpenAlexW1894561566

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.