Construction and structure studies of DNA-bipyridine complexes as versatile scaffolds for site-specific incorporation of metal ions into DNA
作者:Rui Wang、Srivathsan V. Ranganathan、Phensinee Haruehanroengra、Song Mao、Matteo Scalabrin、Daniele Fabris、Alan Chen、Hehua Liu、Abdalla E.A. Hassan、Jianhua Gan、Jia Sheng
DOI:10.1080/07391102.2018.1441071
日期:2019.2.11
The facile construction of metal-DNA complexes using 'Click' reactions is reported here. A series of 2'-propargyl-modified DNA oligonucleotides were initially synthesized as structure scaffolds and were then modified through 'Click' reaction to incorporate a bipyridine ligand equipped with an azido group. These metal chelating ligands can be placed in the DNA context in site-specific fashion to provide
本文报道了使用“点击”反应的金属-DNA复合物的简便构建。最初将一系列2'-炔丙基修饰的DNA寡核苷酸合成为结构支架,然后通过“点击”反应进行修饰,以掺入配备有叠氮基的联吡啶配体。可将这些金属螯合配体以位点特异性方式置于DNA环境中,以提供用于结合各种金属离子的通用模板,这些模板可使用简单的EDTA洗涤和过滤步骤进行交换。发现所构建的金属-DNA复合物是热稳定的。通过解析炔丙基修饰的DNA双链体的晶体结构并通过分子建模和模拟安装联吡啶配体来探索其结构。