作者:Zunnan Huang、Yantao He、Xian Zhang、Andrea Gunawan、Li Wu、Zhong-Yin Zhang、Chung F. Wong
DOI:10.1111/j.1747-0285.2010.00996.x
日期:——
Yersinia pestis causes diseases ranging from gastrointestinal syndromes to bubonic plague and could be misused as a biological weapon. As its protein tyrosine phosphatase YopH has already been demonstrated as a potential drug target, we have developed two series of forty salicylic acid derivatives and found sixteen to have micromolar inhibitory activity. We designed these ligands to have two chemical moieties connected by a flexible hydrocarbon linker to target two pockets in the active site of the protein to achieve binding affinity and selectivity. One moiety possessed the salicylic acid core intending to target the phosphotyrosine‐binding pocket. The other moiety contained different chemical fragments meant to target a nearby secondary pocket. The two series of compounds differed by having hydrocarbon linkers with different lengths. Before experimental co‐crystal structures are available, we have performed molecular docking to predict how these compounds might bind to the protein and to generate structural models for performing binding affinity calculation to aid future optimization of these series of compounds.
鼠疫杆菌 可引起从胃肠综合征到腺鼠疫等多种疾病,并可能被滥用为生物武器。由于其蛋白酪氨酸磷酸酶 YopH 已被证明是一个潜在的药物靶点,我们研发了两个系列总共 40 种水杨酸衍生物,并发现其中有 16 种具有微摩尔抑制活性。我们设计这些配体,使其通过一个灵活的烃类连接链连接两种不同的化学基团,以作用于蛋白活性位点的两个口袋,从而实现对结合亲和力和选择性的控制。其中一个基团以水杨酸为核心,旨在针对磷酸酪氨酸结合口袋;另一个基团则包含不同的化学片段,用于靶向邻近的次要口袋。这两个系列的化合物区别于它们的烃类连接链长度不同。在实验共晶结构可获得之前,我们进行了分子对接,以预测这些化合物如何与蛋白结合,并建立结构模型,计算结合亲和力,以辅助未来对这一系列化合物的优化工作。