Stabilization of an intermolecular RNA triplex by two novel binders Lys- and Arg-rich Ru(II) polypyridyl metallopeptides
作者:Juan Zhu、Fangfang Wang、Xiaohua Liu、Lifeng Tan
DOI:10.1016/j.jinorgbio.2020.111171
日期:2020.9
[Ru(bpy)2(pip)]2+ (bpy = 2,2′-bipyridine, pip = 2-phenyl-1H-imidazo[4,5-f]-[1,10]-phenanthroline) as chromophores and neutral amino acid glycine as spacers, two novel Arg- and Lys-rich Ru(II) polypyridyl metallopeptides as an intermolecular triplex RNA stabilizers, namely [Ru(bpy)2(pic-Lys2-Gly-Lys2-Gly-Lys2)]8+ (Ru1; pic = 2-(4-carboxy-phenyl)imidazo-[4,5-f] [1,10] phenanthroline, Gly = glycine, Lys = lysine)
在这项工作中,使用[Ru(bpy)2(pip)] 2+(bpy = 2,2'-联吡啶,pip = 2-苯基-1 H-咪唑[4,5- f ]-[1,10] -菲咯啉)作为生色团,中性氨基酸甘氨酸作为间隔基,两种新型的富含Arg和Lys的Ru(II)聚吡啶金属肽作为分子间三链体RNA稳定剂,即[Ru(bpy)2(pic-Lys 2 -Gly-Lys 2 -Gly-Lys 2)] 8+(Ru 1; pic = 2-(4-羧基-苯基)咪唑-[4,5- f ] [1,10]菲咯啉,Gly =甘氨酸,Lys =赖氨酸)和[Ru(bpy)2(pic-Arg 2 -Gly-Arg 2 -Gly-Arg2)] 8+(Ru 2; Arg =精氨酸),已经合成并表征。通过紫外-可见光谱,荧光光谱,粘度测量以及圆二色性和热变性研究了Ru 1和Ru 2与poly(U)·poly(A)* poly(U)三重体的结合性