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Exploiting bacterial DNA gyrase as a drug target: current state and perspectives.

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TLDR
Known gyrase-specific drugs and toxins are reviewed and the prospects for developing new antibacterials targeted to this enzyme are assessed.
Abstract
DNA gyrase is a type II topoisomerase that can introduce negative supercoils into DNA at the expense of ATP hydrolysis. It is essential in all bacteria but absent from higher eukaryotes, making it an attractive target for antibacterials. The fluoroquinolones are examples of very successful gyrase-targeted drugs, but the rise in bacterial resistance to these agents means that we not only need to seek new compounds, but also new modes of inhibition of this enzyme. We review known gyrase-specific drugs and toxins and assess the prospects for developing new antibacterials targeted to this enzyme.

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Journal ArticleDOI

Structural Basis for DNA Gyrase Interaction with Coumermycin A1.

TL;DR: The first cocrystal structures of gyrase B bound to coumermycin A1 are reported, revealing that one coumer mycin A2 molecule traps simultaneously two ATP-binding sites.
Journal ArticleDOI

New Aminocoumarins from the Rare Actinomycete Catenulispora acidiphila DSM 44928: Identification, Structure Elucidation, and Heterologous Production

TL;DR: Heterologous expression of the putative gene cluster in Streptomyces coelicolor M1152 confirmed that this cluster is responsible for cacibiocin biosynthesis, and total production levels of cacibocins could be increased by heterologousexpression and screening of different culture media.
Journal ArticleDOI

Peptide Bacteriocins - Structure Activity Relationships

TL;DR: The focus in this review is on the structure-activity relationships of bacteriocins with a particular focus in seven bacteriOCins, namely, nisin, microcin J25,microcin B17,Microcin C, leucocin A, sakacin P, and pediocin PA-1.
Journal ArticleDOI

Design, synthesis of new novel quinoxalin-2(1H)-one derivatives incorporating hydrazone, hydrazine, and pyrazole moieties as antimicrobial potential with in-silico ADME and molecular docking simulation

TL;DR: A series of 6-(morpholinosulfonyl)quinoxalin-2(1H)-one based hydrazone, hydrazine, and pyrazole moieties were designed, synthesized, and evaluated for their in vitro antimicrobial activity.
Journal ArticleDOI

Biological Evaluation of Benzothiazole Ethyl Urea Inhibitors of Bacterial Type II Topoisomerases

TL;DR: Two novel benzothiazole ethyl urea-based small molecules, designated compound A and compound B, were evaluated for their biochemical, antibacterial, and pharmacokinetic properties and potently inhibited the growth of a range of bacterial organisms.
References
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Journal ArticleDOI

DNA topoisomerases: structure, function, and mechanism.

TL;DR: Surprisingly, despite little or no sequence homology, both type IA and type IIA topoisomerases from prokaryotes and the typeIIA enzymes from eukaryotes share structural folds that appear to reflect functional motifs within critical regions of the enzymes.
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A Common Mechanism of Cellular Death Induced by Bactericidal Antibiotics

TL;DR: The results suggest that all three major classes of bactericidal drugs can be potentiated by targeting bacterial systems that remediate hydroxyl radical damage, including proteins involved in triggering the DNA damage response, e.g., RecA.
Journal ArticleDOI

How antibiotics kill bacteria: from targets to networks

TL;DR: The multilayered effects of drug–target interactions, including the essential cellular processes that are inhibited by bactericidal antibiotics and the associated cellular response mechanisms that contribute to killing are discussed.
Journal ArticleDOI

DNA topoisomerases and their poisoning by anticancer and antibacterial drugs.

TL;DR: This review focuses on the molecular and biochemical characteristics of topoisomerases and their inhibitors and discusses the common mechanism of action ofTopoisomerase poisons by interfacial inhibition and trapping of topisomerase cleavage complexes.
Journal ArticleDOI

Quinolone resistance from a transferable plasmid

TL;DR: Although resistance was low in wild-type strains, higher levels of quinolone resistance arose readily by mutation, suggesting that a multiresistance plasmid can speed the development and spread of resistance to these valuable antimicrobial agents.
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