detection of G-quadruplex DNA structures is an important issue and attracts extensive interest. To this end, numerous small molecular fluorescent probes have been designed. Here, we present a series of N-alkylated styrylquinolinium dyes named Ls-1, Ls-2 and Ls-3 with varying side groups at the chain end. We found that these dyes exhibited different binding behaviors to DNAs, and Ls-2 with a sulfonato group
对G-四链体DNA结构的选择性和灵敏检测是一个重要的问题,引起了广泛的兴趣。为此,已经设计了许多小分子荧光探针。在这里,我们介绍了一系列N-烷基化的
苯乙烯基
喹啉鎓
染料,命名为Ls-1,Ls-2和Ls-3,在链端带有不同的侧基。我们发现这些
染料对DNA表现出不同的结合行为,并且在链末端带有磺基的Ls-2对体外G-四链体DNA结构表现出敏感性和选择性。通过紫外可见分光光度法,荧光,圆二色性和分子对接,对该
染料的特性及其与G-四链体DNA的相互作用进行了全面研究。此外,