Nature Communications (Mar 2018)

Mutual potentiation drives synergy between trimethoprim and sulfamethoxazole

  • Yusuke Minato,
  • Surendra Dawadi,
  • Shannon L. Kordus,
  • Abiram Sivanandam,
  • Courtney C. Aldrich,
  • Anthony D. Baughn

DOI
https://doi.org/10.1038/s41467-018-03447-x
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 7

Abstract

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The antibiotics trimethoprim (TMP) and sulfamethoxazole (SMX) synergistically inhibit bacterial tetrahydrofolate biosynthesis, apparently because SMX potentiates TMP activity. Here, Minato et al. identify a metabolic feedback loop in this pathway, revealing that TMP also potentiates SMX activity.