Fluorescence detection of single-nucleotide polymorphisms with a single, self-complementary, triple-stem DNA probe.

Fluorescence detection of single-nucleotide polymorphisms with a single, self-complementary, triple-stem DNA probe.
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DOI:
10.1002/anie.200900369
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发表时间:
2009
影响因子:
16.6
通讯作者:
Soh, H. Tom
Soh, H. Tom
中科院分区:
化学1区
文献类型:
--
作者:
Xiao, Yi;Plakos, Kory J. I.;Lou, Xinhui;White, Ryan J.;Qian, Jiangrong;Plaxco, Kevin W.;Soh, H. Tom

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我们描述了一个单步,单组分,荧光为基础的方法检测单核苷酸多态性在室温下没有外源性试剂。该传感器由形成三茎结构的单个自互补DNA链组成,仅在与完全匹配的靶标结合时才会发生大的构象变化,从而导致荧光显着增加。
We describe a single-step, single-component, fluorescence-based method of detecting single nucleotide polymorphisms at room temperature without exogenous reagents. The sensor is comprised of a single, self-complementary DNA strand forming a triple-stem structure, which undergoes a large conformational change only upon binding to perfectly-matched targets, resulting in a significant increase in fluorescence.
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