Boronic Acid-Mediated Activity Control of Split 10-23 DNAzymes.

Boronic Acid-Mediated Activity Control of Split 10-23 DNAzymes.
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裂解10-23 DNA酶的硼酸介导的活性控制。

DOI:
10.1002/chem.202004227
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发表时间:
2021-01-13
期刊:
Chemistry (Weinheim an der Bergstrasse, Germany)
影响因子:
--
通讯作者:
Smietana M
Smietana M
中科院分区:
其他
文献类型:
--
作者:
Debiais M;Lelievre A;Vasseur JJ;Müller S;Smietana M

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10-23 DNAzyme 是一种人工开发的 Mg2+ 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,添加 Mg2+ 离子会导致片段组装,进而诱导新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。 分裂、连接、激活:由两条或更多条短核酸链组成的分裂DNA酶正在成为生物传感应用的新型工具。据报道,分裂成两个非功能性片段的 10-23 DNAzyme 的活性可以通过形成硼酸核苷间键来恢复。
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 Mg2+ ions leads to assembly of the fragments, which in turn induces the formation of a new boronate internucleoside linkage that restores the DNAzyme activity. A systematic evaluation identified the best‐performing system. The results highlight key features for efficient control of DNAzyme activity through the formation of boronate linkages. Split, join, activate: Split DNAzymes made of two or more short nucleic acid strands are emerging as novel tools for biosensing applications. Herein, it is reported that the activity of 10–23 DNAzyme that was split into two nonfunctional fragments can be restored by formation of a boronate internucleoside linkage.
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