作者:Mégane Debiais、Amandine Lelievre、Jean‐Jacques Vasseur、Sabine Müller、Michael Smietana
DOI:10.1002/chem.202004227
日期:2021.1.13
The 10–23 DNAzyme is an artificially developed Mg2+‐dependent catalytic oligonucleotide that can cleave an RNA substrate in a sequence‐specific fashion. In this study, new split 10–23 DNAzymes made of two nonfunctional fragments, one of which carries a boronic acid group at its 5′ end, while the other has a ribonucleotide at its 3′ end, were designed. Herein it is demonstrated that the addition of
10-23 DNAzyme 是一种人工开发的 Mg 2+依赖性催化寡核苷酸,可以以序列特异性方式切割 RNA 底物。在这项研究中,设计了由两个非功能性片段组成的新分裂 10-23 个 DNAzyme,其中一个片段在 5' 端带有硼酸基团,而另一个在 3' 端带有核糖核苷酸。本文证明了Mg 2+离子的添加导致片段的组装,这反过来又诱导新的硼酸核苷间键的形成,从而恢复DNAzyme 活性。系统评估确定了性能最佳的系统。结果突出了通过形成硼酸键有效控制 DNAzyme 活性的关键特征。