Dual Inhibitor of MurD and MurE Ligases from <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>
作者:Tihomir Tomašić、Roman Šink、Nace Zidar、Anja Fic、Carlos Contreras-Martel、Andréa Dessen、Delphine Patin、Didier Blanot、Manica Müller-Premru、Stanislav Gobec、Anamarija Zega、Danijel Kikelj、Lucija Peterlin Mašič
DOI:10.1021/ml300047h
日期:2012.8.9
MurD and MurE ligases, consecutive enzymes participating in the intracellular steps of bacterial peptidoglycan biosynthesis, are important targets for antibacterial drug discovery. We have designed, synthesized, and evaluated the first d-glutamic acid-containing dual inhibitor of MurD and MurE ligases from Escherichia coli and Staphylococcus aureus (IC50 values between 6.4 and 180 muM) possessing antibacterial
MurD和MurE连接酶是参与细菌肽聚糖生物合成的细胞内步骤的连续酶,是抗菌药物发现的重要目标。我们已经设计,合成和评估了第一种含d-谷氨酸的双重抑制剂,分别来自大肠杆菌和金黄色葡萄球菌(IC50值介于6.4和180μM之间)的MurD和MurE连接酶,具有对革兰氏阳性金黄色葡萄球菌及其抗菌活性。耐甲氧西林菌株(MRSA),最小抑菌浓度(MIC)值为8杯/毫升。还发现该抑制剂对浓度低于200μM的人HepG2细胞无细胞毒性。