Hybrid Inhibitors of DNA Gyrase A and B: Design, Synthesis and Evaluation

The discovery of multi-targeting ligands of bacterial enzymes is an important strategy to combat rapidly spreading antimicrobial resistance. Bacterial DNA gyrase and topoisomerase IV are validated targets for the development of antibiotics. They can be inhibited at their catalytic sites or at their...

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Main Authors: Martina Durcik (Author), Žiga Skok (Author), Janez Ilaš (Author), Nace Zidar (Author), Anamarija Zega (Author), Petra Éva Szili (Author), Gábor Draskovits (Author), Tamás Révész (Author), Danijel Kikelj (Author), Akos Nyerges (Author), Csaba Pál (Author), Lucija Peterlin Mašič (Author), Tihomir Tomašič (Author)
Format: Book
Published: MDPI AG, 2020-12-01T00:00:00Z.
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001 doaj_b21ef8c08f5f42f5bcc65fa01c759cd9
042 |a dc 
100 1 0 |a Martina Durcik  |e author 
700 1 0 |a Žiga Skok  |e author 
700 1 0 |a Janez Ilaš  |e author 
700 1 0 |a Nace Zidar  |e author 
700 1 0 |a Anamarija Zega  |e author 
700 1 0 |a Petra Éva Szili  |e author 
700 1 0 |a Gábor Draskovits  |e author 
700 1 0 |a Tamás Révész  |e author 
700 1 0 |a Danijel Kikelj  |e author 
700 1 0 |a Akos Nyerges  |e author 
700 1 0 |a Csaba Pál  |e author 
700 1 0 |a Lucija Peterlin Mašič  |e author 
700 1 0 |a Tihomir Tomašič  |e author 
245 0 0 |a Hybrid Inhibitors of DNA Gyrase A and B: Design, Synthesis and Evaluation 
260 |b MDPI AG,   |c 2020-12-01T00:00:00Z. 
500 |a 10.3390/pharmaceutics13010006 
500 |a 1999-4923 
520 |a The discovery of multi-targeting ligands of bacterial enzymes is an important strategy to combat rapidly spreading antimicrobial resistance. Bacterial DNA gyrase and topoisomerase IV are validated targets for the development of antibiotics. They can be inhibited at their catalytic sites or at their ATP binding sites. Here we present the design of new hybrids between the catalytic inhibitor ciprofloxacin and ATP-competitive inhibitors that show low nanomolar inhibition of DNA gyrase and antibacterial activity against Gram-negative pathogens. The most potent hybrid <b>3a</b> has MICs of 0.5 µg/mL against <i>Klebsiella pneumoniae</i>, 4 µg/mL against <i>Enterobacter cloacae</i>, and 2 µg/mL against <i>Escherichia coli</i>. In addition, inhibition of mutant <i>E. coli</i> strains shows that these hybrid inhibitors interact with both subunits of DNA gyrase (GyrA, GyrB), and that binding to both of these sites contributes to their antibacterial activity. 
546 |a EN 
690 |a antibacterial 
690 |a ciprofloxacin 
690 |a DNA gyrase 
690 |a dual inhibitor 
690 |a hybrid 
690 |a Pharmacy and materia medica 
690 |a RS1-441 
655 7 |a article  |2 local 
786 0 |n Pharmaceutics, Vol 13, Iss 1, p 6 (2020) 
787 0 |n https://www.mdpi.com/1999-4923/13/1/6 
787 0 |n https://doaj.org/toc/1999-4923 
856 4 1 |u https://doaj.org/article/b21ef8c08f5f42f5bcc65fa01c759cd9  |z Connect to this object online.