The design, synthesis, and evaluation of 8 hybrid DFG-out allosteric kinase inhibitors: A structural analysis of the binding interactions of Gleevec®, Nexavar®, and BIRB-796
作者:Justin Dietrich、Christopher Hulme、Laurence H. Hurley
DOI:10.1016/j.bmc.2010.05.063
日期:2010.8
Nexavar® for the treatment of chronic myeloid leukemia and renal cell carcinoma has generated great interest in the development of other kinase inhibitors that target this secondary binding site. Here, we present a structural comparison of the important and similar interactions necessary for Gleevec®, Nexavar®, and BIRB-796 to bind to their respective DFG-out allosteric binding pockets and the selectivity
迄今为止开发的大多数激酶抑制剂是针对 ATP 结合位点的竞争性抑制剂。然而,格列卫®(甲磺酸伊马替尼,STI571,PDB:1IEP)、Nexavar®(甲苯磺酸索拉非尼,BAY 43-9006,PDB:1UWJ)和 BIRB-796(PDB:1KV2)的最新晶体结构揭示了一个二级结合位点与称为 DFG-out 变构结合位点的 ATP 结合位点相邻。Gleevec® 和 Nexavar® 最近在治疗慢性粒细胞白血病和肾细胞癌方面取得的成功引起了人们对开发其他靶向该二级结合位点的激酶抑制剂的极大兴趣。在这里,我们对 Gleevec®、Nexavar®、和 BIRB-796 结合到它们各自的 DFG-out 变构结合袋以及每个对 c-Abl、B-Raf 和 p38α 的选择性。通过对 8 种额外的 DFG-out 变构抑制剂的合成和评估,对其选择性特征进行了结构分析,这些抑制剂是直接从这些成功支架的片段中开发出来的。