Evidence map›Paper›PMID 34011959›Full record

ArticleNature communications2021

A trimethoprim derivative impedes antibiotic resistance evolution.

Madhu Sudan Manna, Yusuf Talha Tamer, Ilona Gaszek, Nicole Poulides, Ayesha Ahmed, Xiaoyu Wang, Furkan C R Toprak, DaNae R Woodard, Andrew Y Koh, Noelle S Williams and 6 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
9.9field-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

45 citing papers in PubMed, 91 citations in OpenAlex.

  1. Article
  2. Article
  3. Chaperonin recognition of protein dynamics drives drug resistance.bioRxiv : the preprint server for biology · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Disclosing New Insights on Pyrazolo[3,4-Journal of microbiology and biotechnology · 2025
    Article
  9. Article
  10. Article
  11. Antibiotic resistance ofOpen veterinary journal · 2025
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  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

16 authors at 5 institutions in 2 countries.

Madhu Sudan MannaGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Yusuf Talha TamerGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Ilona GaszekGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Nicole PoulidesGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Ayesha AhmedGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Xiaoyu WangDepartment of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Furkan C R ToprakTexas A&M University, College Station, TX, USA.
DaNae R WoodardDepartment of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Andrew Y KohDepartment of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Noelle S WilliamsDepartment of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Dominika BorekDepartment of Molecular Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Ali Rana AtilganFaculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.ORCID 0000-0003-0604-6301
John D HullemanDepartment of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX, USA.ORCID 0000-0001-8149-656X
Canan AtilganFaculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.ORCID 0000-0003-0557-6044
Uttam TambarDepartment of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX, USA.ORCID 0000-0001-5659-5355
Erdal ToprakGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA. erdal.toprak@utsouthwestern.edu.ORCID 0000-0002-4883-7681
The University of Texas Southwestern Medical Center · USCenter for Systems Biology · USSabancı Üniversitesi · TRSouthwestern Medical Center · USTexas A&M University · US

Funding

Mapping epistatic interactions in molecular evolution of antibiotic resistanceR01GM125748 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI Erdal Toprak · 2018 to 2026
$3.6M
Radioprotectants for structural biologyR21GM126406 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI BOREK, DOMINIKA MARTA · 2018 to 2019
$446k
NIGMS NIH HHS R01 GM125748NIGMS NIH HHS R21 GM126406
6 · The paper itself

Abstract

The antibiotic trimethoprim (TMP) is used to treat a variety of Escherichia coli infections, but its efficacy is limited by the rapid emergence of TMP-resistant bacteria. Previous laboratory evolution experiments have identified resistance-conferring mutations in the gene encoding the TMP target, bacterial dihydrofolate reductase (DHFR), in particular mutation L28R. Here, we show that 4'-desmethyltrimethoprim (4'-DTMP) inhibits both DHFR and its L28R variant, and selects against the emergence of TMP-resistant bacteria that carry the L28R mutation in laboratory experiments. Furthermore, antibiotic-sensitive E. coli populations acquire antibiotic resistance at a substantially slower rate when grown in the presence of 4'-DTMP than in the presence of TMP. We find that 4'-DTMP impedes evolution of resistance by selecting against resistant genotypes with the L28R mutation and diverting genetic trajectories to other resistance-conferring DHFR mutations with catalytic deficiencies. Our results demonstrate how a detailed characterization of resistance-conferring mutations in a target enzyme can help identify potential drugs against antibiotic-resistant bacteria, which may ultimately increase long-term efficacy of antimicrobial therapies by modulating evolutionary trajectories that lead to resistance.

Indexed as

Amino Acid SubstitutionAnti-Bacterial AgentsCrystallography, X-RayDirected Molecular EvolutionDrug DesignEscherichia coliEscherichia coli InfectionsEscherichia coli ProteinsFolic Acid AntagonistsGenes, BacterialGenotypeHumansModels, MolecularMutationTetrahydrofolate DehydrogenaseTrimethoprimAnti-Bacterial AgentsEscherichia coli ProteinsFolic Acid AntagonistsTetrahydrofolate DehydrogenaseTrimethoprim

Identifiers

PMID34011959
PMCPMC8134463
OpenAlexW3162660302

What OpenQuestion holds

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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.