Aptameric enzyme subunit for homogeneous DNA sensing.
Aptameric enzyme subunit for homogeneous DNA sensing.
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DOI:
10.1007/s10529-007-9526-z
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发表时间:
2008-02
影响因子:
2.7
通讯作者:
Sode K
中科院分区:
文献类型:
--
作者:
Ikebukuro K;Yoshida W;Sode K
We have developed an aptameric enzyme subunit (AES) which can detect the DNA in a homogeneous solution. The AES is an artificial enzyme subunit composed of an enzyme-inhibiting aptamer bearing a target-molecule binding site. We connected a probe DNA to a thrombin-inhibiting aptamer at its 5′ or 3′ end. The inhibitory activity of the thrombin-inhibiting aptamer bearing the probe DNA decreased compared to that of the original aptamer; however, it recovered upon hybridization with the target DNA. Using this AES, we were able to detect target DNAs by measuring the thrombin activity in a homogeneous solution.
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