期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 51, 页码 17224-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja806222e
关键词
-
资金
- Israel Science Foundation
- Canadian Institute for the Advancement of Research (CIFAR)
A method for the amplified analysis of a gene sequence by a Fok I/DNA machine is described. A tailored nucleic acid that includes a recognition sequence for the analyzed gene and a hybridized sequence of the gene itself acting as the fuel substrate of the machine. Upon recognition of the gene by the fuel substrate, the autonomous Fok I-induced cleavage of the resulting duplex proceeds, resulting in the duplication of the gene sequence and the horseradish peroxidase mimicking hemin/G-quadroplex DNAzyme as a chemiluminescence reporter. The autonomous duplication of the gene sequence and the catalytic activity of the DNAzyme provide a double amplification path that enables the analysis of target DNA with a detection limit of 1 x 10(-14) M.
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