申请人:Leng Fenfei
公开号:US11268129B1
公开(公告)日:2022-03-08
The present invention provides assays and methods for studying DNA topology and topoisomerases. The assays and methods utilize a circular plasmid DNA comprising one or more hairpin structures and the ability of T5 exonuclease (T5E) to digest the circular plasmid DNA in a specific configuration. The assays and methods can be used as a high throughput screening for inhibitors of, for example, DNA gyrases and DNA topoisomerases I for anticancer drug and antibiotics discovery.
本发明提供了研究DNA拓扑结构和拓扑异构酶的检测方法。这些检测方法利用包含一个或多个发夹结构的环状质粒 DNA 以及 T5 外切酶(T5E)以特定构型消化环状质粒 DNA 的能力。这些检测方法可用于高通量筛选 DNA 回旋酶和 DNA 拓扑异构酶 I 等的抑制剂,以发现抗癌药物和抗生素。