Discovery of a fragment hit compound targeting D-Ala:D-Ala ligase of bacterial peptidoglycan biosynthesis.

Autor: Proj M; Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Ljubljana, Ljubljana, Slovenia., Hrast M; Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Ljubljana, Ljubljana, Slovenia., Bajc G; Biotechnical Faculty, Department of Biology, University of Ljubljana, Ljubljana, Slovenia., Frlan R; Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Ljubljana, Ljubljana, Slovenia., Meden A; Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Ljubljana, Ljubljana, Slovenia., Butala M; Biotechnical Faculty, Department of Biology, University of Ljubljana, Ljubljana, Slovenia., Gobec S; Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Ljubljana, Ljubljana, Slovenia.
Jazyk: angličtina
Zdroj: Journal of enzyme inhibition and medicinal chemistry [J Enzyme Inhib Med Chem] 2023 Dec; Vol. 38 (1), pp. 387-397.
DOI: 10.1080/14756366.2022.2149745
Abstrakt: Bacterial resistance is an increasing threat to healthcare systems, highlighting the need for discovering new antibacterial agents. An established technique, fragment-based drug discovery, was used to target a bacterial enzyme Ddl involved in the biosynthesis of peptidoglycan. We assembled general and focused fragment libraries that were screened in a biochemical inhibition assay. Screening revealed a new fragment-hit inhibitor of DdlB with a Ki value of 20.7 ± 4.5 µM. Binding to the enzyme was confirmed by an orthogonal biophysical method, surface plasmon resonance, making the hit a promising starting point for fragment development.
Databáze: MEDLINE
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