DNAzyme-mediated catalysis with only guanosine and cytidine nucleotides.
DNAzyme-mediated catalysis with only guanosine and cytidine nucleotides.
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DOI:
10.1093/nar/gkn930
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发表时间:
2009-02
影响因子:
14.9
通讯作者:
Li, Yingfu
中科院分区:
文献类型:
--
作者:
Schlosser, Kenny;Li, Yingfu
Single-stranded DNA molecules have the capacity to adopt catalytically active structures known as DNAzymes, although the fundamental limits of this ability have not been determined. Starting with a parent DNAzyme composed of all four types of standard nucleotides, we conducted a search of the surrounding sequence space to identify functional derivatives with catalytic cores composed of only three, and subsequently only two types of nucleotides. We provide the first report of a DNAzyme that contains only guanosine and cytidine deoxyribonucleotides in its catalytic domain, which consists of just 13 nucleotides. This DNAzyme catalyzes the Mn2+-dependent cleavage of an RNA phosphodiester bond ∼5300-fold faster than the corresponding uncatalyzed reaction, but ∼10 000-fold slower than the parent. The demonstration of a catalytic DNA molecule made from a binary nucleotide alphabet broadens our understanding of the fundamental limits of nucleic-acid-mediated catalysis.
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影响因子:
14.9
作者:
Schlosser K;Gu J;Lam JC;Li Y
通讯作者:
Li Y
DOI:
10.1073/pnas.94.9.4262
发表时间:
1997-04-29
影响因子:
11.1
作者:
Santoro, SW;Joyce, GF
通讯作者:
Joyce, GF
DOI:
10.1007/s00018-008-8029-y
发表时间:
2008-07
期刊:
Cellular and molecular life sciences : CMLS
影响因子:
--
作者:
Baum DA;Silverman SK
通讯作者:
Silverman SK
影响因子:
4.5
作者:
Breaker, RR;Emilsson, GM;Sudarsan, N
通讯作者:
Sudarsan, N
影响因子:
15
作者:
Li, YF;Breaker, RR
通讯作者:
Breaker, RR