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- W2996275087 abstract "The fatty acid biosynthesis (FAS II) is a vital process in bacteria and regarded as an attractive pathway for the development of potential antimicrobial agents. In this study, we report 1,4-naphthoquinone (NPQ) as a dual inhibitor of two key enzymes of FAS II pathway, namely FabD (Malonyl-CoA:ACP transacylase) and FabZ (β-hydroxyacyl-ACP dehydratase). Mode of inhibition of NPQ was found to be non-competitive for both enzymes with IC50 of 26.67 μΜ and 23.18 μΜ against McFabZ and McFabD respectively. Conformational changes in secondary and tertiary structures marked by the loss of helical contents were observed in both enzymes upon NPQ binding. The fluorescence quenching was found to be static with a stable ground state complex formation. ITC based studies have shown that NPQ is binding to McFabZ with a stronger affinity (~1.5×) as compared to McFabD. Molecular docking studies have found that NPQ interacts with key residues of both McFabD (Ser209, Arg126, and Leu102) and McFabZ (His74 and Tyr112) enzymes. Both complexes have shown the structural stability during the 20 ns run of molecular dynamics based simulations. Altogether, the present study suggests that NPQ scaffold can be exploited as a multi-targeted inhibitor of FAS II pathway, and these biochemical and biophysical findings will further help in the development of potent antibacterial agents targeting FAS II pathway." @default.
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- W2996275087 date "2018-01-01" @default.
- W2996275087 modified "2023-09-24" @default.
- W2996275087 title "Biochemical and biophysical characterization of 1,4-naphthoquinone as a dual inhibitor of two key enzymes of type II fatty acid biosynthesis from Moraxella catarrhalis Proteins and proteomics" @default.
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