Cleaving DNA with DNA

被引：224

作者：

Carmi, N ^{[1
]}

Balkhi, SR ^{[1
]}

Breaker, RR ^{[1
]}

机构：

[1] Yale Univ, Dept Mol Cellular & Dev Biol, New Haven, CT 06520 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1998年 / 95卷 / 05期

关键词：

D O I：

10.1073/pnas.95.5.2233

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A DNA structure is described that can cleave single-stranded DNA oligonucleotides in the presence of ionic copper. This "deoxyribozyme" can self-cleave or can operate as a bimolecular complex that simultaneously makes use of duplex and tripler interactions to bind and cleave separate DNA substrates. Bimolecular deoxyribozyme-mediated strand scission proceeds with a k(obs) of 0.2 min(-1), whereas the corresponding uncatalyzed reaction could not be detected. The duplex and tripler recognition domains can be altered, making possible the targeted cleavage of single-stranded DNAs with different nucleotide sequences. Several small synthetic DNAs were made to function as simple "restriction enzymes" for the site-specific cleavage of single-stranded DNA.

引用

页码：2233 / 2237

页数：5

共 27 条

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