Structure-based design of haloperidol analogues as inhibitors of acetyltransferase Eis from <i>Mycobacterium tuberculosis</i> to overcome kanamycin resistance
作者:Ankita Punetha、Keith D. Green、Atefeh Garzan、Nishad Thamban Chandrika、Melisa J. Willby、Allan H. Pang、Caixia Hou、Selina Y. L. Holbrook、Kyle Krieger、James E. Posey、Tanya Parish、Oleg V. Tsodikov、Sylvie Garneau-Tsodikova
DOI:10.1039/d1md00239b
日期:——
structure of the Eis-haloperidol (1) complex, which guided synthesis of 34 analogues. The structure–activity relationship study showed that in addition to haloperidol (1), eight analogues, some of which were smaller than 1, potently inhibited Eis (IC50 ≤ 1 μM). Crystal structures of Eis in complexes with three potent analogues and droperidol (DPD), an antiemetic and antipsychotic, were determined. Three
结核病 (TB) 由结核分枝杆菌( Mtb ) 引起,是一种致命的细菌性疾病。Mtb的耐药菌株使根除结核病成为一项艰巨的任务。Mtb过度表达增强的细胞内存活 (Eis) 蛋白赋予了对二线抗生素卡那霉素 (KAN) 的抗性。Eis 是一种乙酰转移酶,可将 KAN 乙酰化,使其抗菌功能失活。开发 Eis 抑制剂作为 KAN 辅助治疗剂是预防和克服 KAN 耐药性的一条有吸引力的途径。我们发现抗精神病药物氟哌啶醇 (HPD, 1 ) 是一种有效的 Eis 抑制剂,IC 50= 0.39 ± 0.08 μM。我们确定了 Eis-氟哌啶醇 ( 1 ) 复合物的晶体结构,该复合物指导了 34 种类似物的合成。构效关系研究表明,除氟哌啶醇 ( 1 ) 外,还有 8 种类似物,其中一些小于1,可有效抑制 Eis (IC 50 ≤ 1 μM)。确定了 Eis 与三种强效类似物和氟哌利多 (DPD)(一种