Application of Fragment Screening and Fragment Linking to the Discovery of Novel Thrombin Inhibitors
作者:Nigel Howard、Chris Abell、Wendy Blakemore、Gianni Chessari、Miles Congreve、Steven Howard、Harren Jhoti、Christopher W. Murray、Lisa C. A. Seavers、Rob L. M. van Montfort
DOI:10.1021/jm050850v
日期:2006.2.1
The screening of fragments is an alternative approach to high-throughput screening for the identification of leads for therapeutic targets. Fragment hits have been discovered using X-ray crystallographic screening of protein crystals of the serine protease enzyme thrombin. The fragment library was designed to avoid any well-precedented, strongly basic functionality. Screening hits included a novel
片段的筛选是用于鉴定治疗靶标的高通量筛选的另一种方法。使用丝氨酸蛋白酶凝血酶的蛋白质晶体的X射线晶体学筛选已经发现片段命中。片段库的设计避免了任何先有的,非常基础的功能。筛选结果包括新颖的配体(3),该配体仅与S2-S4口袋结合,而较小的片段则与S1口袋结合。介绍了这些蛋白质-配体复合物的结构。将两个这样的片段连接在一起并合成更大的药物大小的化合物的化学策略导致了具有纳摩尔效价(例如7,IC50 = 3.7 nM)的杂合抑制剂的有效鉴定。