Structure-based design of inhibitors of purine nucleoside phosphorylase. 1. 9-(Arylmethyl) derivatives of 9-deazaguanine
作者:John A. Montgomery、Shri Niwas、Jerry D. Rose、John A. Secrist、Y. Sudhakar Babu、Charles E. Bugg、Mark D. Erion、Wayne C. Guida、Steven E. Ealick
DOI:10.1021/jm00053a008
日期:1993.1
were designed using the three-dimensional structure of the enzyme in an iterative process that involved interactive computer graphics to model the native enzyme and complexes of it with the inhibitors, Monte Carlo-based conformational searching, and energy minimization. Studies of the enzyme/inhibitor complexes were used to determine priorities of the synthetic efforts. The resulting compounds were then
嘌呤核苷磷酸化酶(PNP,EC 2.4.2.1)是一种挽救酶,对免疫系统中T细胞介导的部分很重要,因此是重要的治疗靶标。本文介绍了有效,竞争性PNP抑制剂的设计,合成和酶学评估。在迭代过程中使用酶的三维结构设计潜在的抑制剂,该过程涉及交互式计算机图形来模拟天然酶及其与抑制剂的复合物,基于蒙特卡洛的构象搜索和能量最小化。酶/抑制剂复合物的研究用于确定合成努力的优先级。然后通过确定它们的IC 50值并通过使用差分傅立叶图的X射线衍射分析来评估所得化合物。以这种方式,我们开发了一系列有效的,可透过膜的9-(芳基甲基)-9-脱氮嘌呤(2-氨基-7-(芳基甲基)-4H-吡咯并[3,2-d]-嘧啶-4-酮)酶的抑制剂。这些化合物的IC50值范围为17至270 nM(在1 mM磷酸盐中),其中9-(3,4-二氯苄基)-9-脱氮鸟嘌呤是最有效的抑制剂。X射线分析解释了芳基的作用,并揭示了相对于8-氨基鸟嘌