首页> 美国卫生研究院文献>Nucleic Acids Research >A 22-bipyridine ligand for incorporation into oligodeoxynucleotides: synthesis stability and fluorescence properties of ruthenium-DNA complexes.
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A 22-bipyridine ligand for incorporation into oligodeoxynucleotides: synthesis stability and fluorescence properties of ruthenium-DNA complexes.

机译:用于掺入寡脱氧核苷酸的22-联吡啶配体:钌-DNA复合物的合成稳定性和荧光性质。

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摘要

A non-nucleoside linker based upon the ligand 2,2'-bipyridine and ethylene glycol is prepared and placed into the backbone of a number of oligonucleo-tides. The bipyridine ligand is reacted with cis -dichloro bis(2,2'-bipyridyl) Ru(II) to generate the relatively substitutionally inert complex based upon the well-characterized tris -2,2'-bipyridyl Ru(II). The ruthenium-containing DNA complexes exhibited UV and fluorescence characteristics that are consistent with those previously observed for simple tris -2,2'-bipyridyl Ru(II) complexes. Oligonucleotides containing the ruthenium complex will form both DNA duplexes and triplexes with stabilities that are slightly better than those formed from simple tethered oligonucleotide probes in which the two hybridizing sequences are tethered by simple tri(ethylene glycol) or hexa(ethylene glycol) linkers.
机译:制备了基于配体2,2′-联吡啶和乙二醇的非核苷接头,并将其置于许多寡核苷酸的骨架中。使联吡啶配体与顺-二氯双(2,2'-联吡啶基)Ru(II)反应,生成基于特征充分的三-2,2'-联吡啶基Ru(II)的相对取代的惰性络合物。含钌的DNA配合物表现出的紫外线和荧光特征与以前对简单的tris -2,2'-联吡啶基Ru(II)配合物观察到的一致。含有钌复合物的寡核苷酸将形成DNA双链体和三链体,其稳定性比由简单的拴系寡核苷酸探针形成的DNA稳定性好,在简单的拴系寡核苷酸探针中,两个杂交序列通过简单的三(乙二醇)或六(乙二醇)接头拴系。

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