Investigation of the Noncovalent Binding Mode of Covalent Proteasome Inhibitors around the Transition State by Combined Use of Cyclopropylic Strain-Based Conformational Restriction and Computational Modeling
作者:Shuhei Kawamura、Yuka Unno、Motohiro Tanaka、Takuma Sasaki、Akihito Yamano、Takatsugu Hirokawa、Tomoshi Kameda、Akira Asai、Mitsuhiro Arisawa、Satoshi Shuto
DOI:10.1021/jm400542h
日期:2013.7.25
To develop potent covalent inhibitors, the noncovalent interactions around the transition state to form covalent bonding should be optimized because the potency of the inhibitor can be depending on the energy of the transition state. Here, we report an efficient analysis of the noncovalent binding mode of a potent covalent proteasome inhibitor 3a around the transition state by a combined use of the
为了开发有效的共价抑制剂,应当优化过渡态周围形成共价键的非共价相互作用,因为抑制剂的效能可能取决于过渡态的能量。在这里,我们报告了通过结合使用化学方法(即基于环丙基菌株的构象限制和计算对接方法)对有效的共价蛋白酶体抑制剂3a在过渡态附近的非共价结合模式的有效分析。此外,我们利用本研究构建的蛋白酶体模拟模型,计算了过渡态周围预测的非共价复合物中一系列盐基孢酰胺衍生物的结合能,这与它们的pIC 50密切相关。因此,提出的预测共价抑制剂过渡态附近非共价结合模式的对接方法将有助于共价抑制剂的开发。