Small-Molecule Inhibitor of FosA Expands Fosfomycin Activity to Multidrug-Resistant Gram-Negative Pathogens

Adam D. Tomich, Erik H. Klontz, Daniel Deredge, John P. Barnard, Christi L. McElheny, Megan L. Eshbach, Ora A. Weisz, Patrick L. Wintrode, Yohei Doi, Eric J. Sundberg,

Antimicrobial Agents and Chemotherapy · 2019 · 17 citations · 15 references

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Abstract

-transferase (FosA) that metabolizes FOM. In this study, we describe the discovery and biochemical and structural characterization of ANY1 (3-bromo-6-[3-(3-bromo-2-oxo-1H-pyrazolo[1,5-a]pyrimidin-6-yl)-4-nitro-1H-pyrazol-5-yl]-1H-pyrazolo[1,5-a]pyrimidin-2-one), a small-molecule active-site inhibitor of FosA. Importantly, ANY1 potentiates FOM activity in representative Gram-negative pathogens. Collectively, our study outlines a new strategy to expand FOM activity to a broader spectrum of Gram-negative pathogens, including multidrug-resistant strains.

References

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