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Recent advances in DNA sequencing technology have made it possible to elucidate the entire genomes of pathogenic bacteria, and advancements in bioinformatic tools have driven comparative studies of these genome sequences. These evaluations are dramatically increasing our ability to make valid considerations of the limitations and advantages of particular targets based on their predicted spectrum and selectivity. In addition, developments in gene knockout technologies amenable to pathogenic organisms have enabled new genes and gene products critical to bacterial growth and pathogenicity to be uncovered at an unprecedented rate. Specific target examples in the areas of cell wall biosynthesis, aromatic amino acid biosynthesis, cell division, two component signal transduction, fatty acid biosynthesis, isopreniod biosynthesis and tRNA synthetases illustrate how aspects of the above capabilities are impacting on the discovery and characterization of novel antibacterial targets. An example of a novel inhibitor of bacterial fatty acid biosynthesis discovered from high throughput screening processes is described, along with its subsequent chemical optimization. Furthermore, the application and importance of technologies for tracking the mode of antibacterial action of these novel inhibitors is discussed. |
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