Effect of the Linking Position of a Side Chain in Bis(quinolylmethyl)ethylenediamine as a DNA Binding Agent.
作者:Yuji MIKATA、Yoko ONCHI、Maki KISHIGAMI、Shigenobu YANO
DOI:10.1248/cpb.48.477
日期:——
Two bisquinoline derivatives, N, N'-bis(2-quinolylmethyl)ethylenediamine (2-BQME) and N, N'-bis(8-quinolylmethyl)ethylenediamine (8-BQME) have been synthesized, and their ability to bind to duplex DNA was studied. 8-BQME bound to DNA more strongly than 2-BQME, judging from the extent of increase in the melting temperature of duplex DNA, the UV-vis spectral change, and ethidium displacement assay. These compounds exhibited apparent AT-specificity suggesting minor groove binding in addition to intercalation.
合成了两种双喹啉衍生物,N, N'-双(2-喹啉甲基)乙二胺(2-BQME)和N, N'-双(8-喹啉甲基)乙二胺(8-BQME),并研究了它们与双链DNA的结合能力。从双链 DNA 熔化温度的升高程度、紫外-可见光谱的变化以及乙啶置换试验来看,8-BQME 与 DNA 的结合比 2-BQME 更强。这些化合物表现出明显的 AT 特异性,这表明除了插层作用外,它们还能与次凹槽结合。