作者:Masahiro Ito、Misa Iwatani、Yusuke Kamada、Satoshi Sogabe、Shoichi Nakao、Toshio Tanaka、Tomohiro Kawamoto、Samuel Aparicio、Atsushi Nakanishi、Yasuhiro Imaeda
DOI:10.1016/j.bmc.2017.02.035
日期:2017.4
is worthwhile to identify selective eIF4A3 inhibitors with a view to investigating the functions of eIF4A3 and EJC further to clarify the roles of the ATPase and helicase activities in cells. Our chemical optimization of hit compound 2 culminated in the discovery of ATP-competitive eIF4A3 inhibitor 18 with submicromolar ATPase inhibitory activity and excellent selectivity over other helicases. Hence
真核生物起始因子4A3(eIF4A3)是ATP依赖的RNA解旋酶,是外显子连接复合体(EJC)的核心组成部分。EJC在RNA代谢中具有多种作用,例如翻译,监视和剪接RNA的定位。为了研究eIF4A3和EJC的功能以进一步阐明细胞中ATPase和解旋酶活性的作用,有必要鉴定选择性eIF4A3抑制剂。我们对命中化合物2的化学优化最终发现了具有亚微摩尔ATPase抑制活性和比其他解旋酶优异的选择性的ATP竞争性eIF4A3抑制剂18。因此,化合物18可能是阐明eIF4A3和EJC的详细功能的有价值的化学探针。