G-quadruplex and duplex DNA binding studies of novel Ruthenium(II) complexes containing ascididemin ligands
作者:Maierhaba Wumaier、Jing-Jing Shi、Tian-Ming Yao、Xiao-Chun Hu、Ru-Ru Gao、Shuo Shi
DOI:10.1016/j.jinorgbio.2019.03.021
日期:2019.7
Ruthenium(II) polypyridyl complexes containing ascididemin (ASC) as main ligand have been synthesized and characterized. Their interactions with different G-quadruplex (Htelo, c-myc and c-kit) (Htelo: human telomeric DNA, c-myc: cellular-myelocytomatosis viral oncogene, c-kit: oncogene c-kit promoter sequences) and duplex (ds26) DNA sequences were comparatively studied with the free ligand ASC by a series of
本文合成并表征了三种新的以Ascididemin(ASC)为主要配体的钌(II)聚吡啶基配合物。它们与不同的G-四链体(Htelo,c-myc和c-kit)(Htelo:人类端粒DNA,c-myc:细胞-骨髓细胞瘤病病毒癌基因,c-kit:癌基因c-kit启动子序列)和双链体(ds26的相互作用) )通过一系列光谱技术,包括紫外线-可见(紫外可见)光谱,FID(荧光嵌入剂置换)测定法和FRET(荧光共振能量转移)融解测定法,对游离序列ASC的DNA序列进行了比较研究。还进行了分子对接研究以支持化合物与G-四链体DNA的结合模式。结果表明[Ru(bpy)2 ASC]·(PF 6)2(1),[Ru(phen)2 ASC]·(PF 6)2(2),[Ru(tatp)2 ASC]·(PF 6)2(3)(bpy = 2,2'-联吡啶, phen = 1,10-菲咯啉,tatp = 1,4,8,9-四氮