当前位置: X-MOL 学术Biochimie › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Targeting a viral DNA sequence with a deoxyribozyme in a preparative scale.
Biochimie ( IF 3.3 ) Pub Date : 2019-08-01 , DOI: 10.1016/j.biochi.2019.07.022
Parisa Dastjerdi-Khorzoghi 1 , Fatemeh Javadi-Zarnaghi 1 , Zohreh Hojati 1
Affiliation  

Deoxyribozymes are synthetic and single stranded DNAs that are capable of catalysis of a variety of reactions, including cleavage of DNA substrates. Deoxyribozymes are usually characterized by analytical single-turnover kinetic assays, however, for many applications e.g. characterization of the reaction products, semi-preparative and preparative reactions are required. At such scales, there is a lack of comprehensive analysis and conditions that supports high amount of products in an appropriate time-scale are vaguely guessed by researchers. In this report, catalytic activity of an oxidizing DNA-cleaving deoxyribozyme, F-8(X), was comprehensively inspected in semi-preparative (10 μM substrate) scale. A 60 nucleotides long synthetic DNA sequence was selected as the target DNA for this study. The DNA sequence was originated from a single stranded DNA virus. Investigations revealed high yield in the presence of optimal concentration of oxidizing agents. The optimal conditions have been applied for scale-up of the reaction to preparative (40 μM substrate) and multi-turnover reactions to achieve highest amount of product in a cost-, time- and labor-effective manner. Such a comprehensive analysis of a deoxyribozyme's activity in semi-preparative scale provides a platform for expanded applications of DNA catalysts as a tool in chemical biology.

中文翻译:

以制备规模的脱氧核酶靶向病毒DNA序列。

脱氧核酶是合成的单链DNA,能够催化多种反应,包括DNA底物的裂解。脱氧核酶通常通过分析单周动力学分析来表征,但是,对于许多应用(例如反应产物的表征),需要半制备和制备反应。在这样的规模下,缺乏全面的分析,研究人员模糊地猜测在适当的时间范围内支持大量产品的条件。在本报告中,以半制备型(10μM底物)规模全面检查了氧化性DNA裂解脱氧核酶F-8(X)的催化活性。选择60个核苷酸长的合成DNA序列作为该研究的靶DNA。DNA序列起源于单链DNA病毒。研究表明,在存在最佳浓度的氧化剂的情况下,收率很高。最佳条件已应用到放大到制备型(40μM底物)的反应和多周转反应上,从而以节省成本,时间和劳力的方式获得最大量的产品。半制备规模的脱氧核酶活性的这种全面分析为将DNA催化剂作为化学生物学工具扩展应用提供了平台。省时省力的方式。半制备规模的脱氧核酶活性的这种全面分析为将DNA催化剂作为化学生物学工具扩展应用提供了平台。省时省力的方式。半制备规模的脱氧核酶活性的这种全面分析为将DNA催化剂作为化学生物学工具扩展应用提供了平台。
更新日期:2019-08-01
down
wechat
bug