title: The reductase steps of the type II fatty acid synthase as antimicrobial targets.
abstract: The increasing of multidrug resistance of clinically important pathogens calls for the development of novel antibiotics with unexploited cellular targets. FA biosynthesis in bacteria is catalyzed by a group of highly conserved proteins known as the type II FA synthase (FAS II) system. Bacterial FAS II organization is distinct from its mammalian counterpart; thus the FAS II pathway offers several unique steps for selective inhibition by antibacterial agents. Some known antibiotics that target the FAS II system include triclosan, isoniazid, and thiolactomycin. Recent years have seen remarkable progress in the understanding of the genetics, biochemistry, and regulation of the FAS II system with the availability of the complete genome sequence for many bacteria. Crystal structures of the FAS II pathway enzymes have been determined for not only the Escherichia coli model system but also other gram-negative and gram-positive pathogens. The protein structures have greatly facilitated structure-based design of novel inhibitors and the improvement of existing antibacterial agents. This review discusses new developments in the discovery of inhibitors that specifically target the two reductase steps of the FAS II system, beta-ketoacyl-acyl carrier potein (ACP) reductase and enoyl-ACP reductase.
authors.affiliation: Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.
authors.forename: Yong-Mei
authors.initials: YM
authors.lastname: Zhang
authors.forename: Ying-Jie
authors.initials: YJ
authors.lastname: Lu
authors.forename: Charles O
authors.initials: CO
authors.lastname: Rock
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D002384:Catalysis / Q000187:drug effects; D004791:Enzyme Inhibitors / Q000737:chemistry / Q000494:pharmacology*; D064429:Fatty Acid Synthases / Q000037:antagonists & inhibitors* / Q000145:classification / Q000378:metabolism*; D006801:Humans; D010088:Oxidoreductases / Q000037:antagonists & inhibitors* / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D004791:Enzyme Inhibitors; D010088:Oxidoreductases; D064429:Fatty Acid Synthases
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