Nature Communications (Mar 2018)
Mutual potentiation drives synergy between trimethoprim and sulfamethoxazole
Abstract
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.