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Discovery of antimicrobial compounds targeting bacterial type FAD synthetases

AutorSebastián, María; Anoz-Carbonell, Ernesto; Gracia, B.; Cossio, P.; Aínsa, J. A.; Lans, I.; Medina, Milagros
Fecha de publicación2018
EditorTaylor & Francis
CitaciónJournal of Enzyme Inhibition and Medicinal Chemistry 33: 241- 254 (2018)
ResumenThe increase of bacterial strains resistant to most of the available antibiotics shows a need to explore novel antibacterial targets to discover antimicrobial drugs. Bifunctional bacterial FAD synthetases (FADSs) synthesise the flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). These cofactors act in vital processes as part of flavoproteins, making FADS an essential enzyme. Bacterial FADSs are potential antibacterial targets because of differences to mammalian enzymes, particularly at the FAD producing site. We have optimised an activity-based high throughput screening assay targeting Corynebacterium ammoniagenes FADS (CaFADS) that identifies inhibitors of its different activities. We selected the three best high-performing inhibitors of the FMN:adenylyltransferase activity (FMNAT) and studied their inhibition mechanisms and binding properties. The specificity of the CaFADS hits was evaluated by studying also their effect on the Streptococcus pneumoniae FADS activities, envisaging differences that can be used to discover species-specific antibacterial drugs. The antimicrobial effect of these compounds was also evaluated on C. ammoniagenes, S. pneumoniae, and Mycobacterium tuberculosis cultures, finding hits with favourable antimicrobial properties.
URIhttp://hdl.handle.net/10261/166536
Identificadoresdoi: 10.1080/14756366.2017.1411910
issn: 1475-6374
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