The Meisenheimer Complex as a Paradigm in Drug Discovery: Reversible Covalent Inhibition through C67 of the ATP Binding Site of PLK1
作者:Russell J. Pearson、David G. Blake、Mokdad Mezna、Peter M. Fischer、Nicholas J. Westwood、Campbell McInnes
DOI:10.1016/j.chembiol.2018.06.001
日期:2018.9
important oncology targets that act in regulating entry into and progression through mitosis. Structure-guided discovery of a new class of inhibitors of Polo-like kinase 1 (PLK1) catalytic activity that interact with Cys67 of the ATP binding site is described. Compounds containing the benzothiazoleN-oxide scaffold not only bind covalently to this residue, but are reversible inhibitors through the formation
polo激酶家族是重要的肿瘤学靶标,其在调节有丝分裂的进入和通过有丝分裂中起作用。描述了结构导向的新型Polo样激酶1(PLK1)催化活性抑制剂的发现,该抑制剂与ATP结合位点的Cys67相互作用。含有苯并噻唑N-氧化物骨架的化合物不仅与该残基共价结合,而且通过形成迈森海默络合物而成为可逆的抑制剂。激酶抑制的这种机制导致化合物可以高选择性地靶向PLK1,同时避免了不可逆的共价结合以及与细胞中其他含巯基分子相互作用的问题。由于对共价药物的兴趣重新出现,并且潜在的药物靶标过多,