Nucleic Acid Quantitation with Log-Linear Response Hybridization Probe Sets.

Nucleic Acid Quantitation with Log-Linear Response Hybridization Probe Sets.
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DOI:
10.1021/acssensors.0c00052
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发表时间:
2020-06-26
期刊:
影响因子:
8.9
通讯作者:
Zhang DY
Zhang DY
中科院分区:
化学1区
文献类型:
--
作者:
Wu LR;Fang JZ;Khodakov D;Zhang DY

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Concentrations of different nucleic acid species in biological samples span many orders of magnitude. A real-time polymerase chain reaction maps the concentration of a target nucleic acid sequence log–linearly into cycle threshold to enable quantitation with a wide dynamic range but suffers from enzymatic biases. Here, we present a general design for constructing hybridization probe sets with highly log–linear response curves to enable accurate enzyme-free quantitation across large ranges (more than 6 logs) of target DNA concentrations. The sensitivity of each component probe is accurately adjusted via formulation stoichiometry to reduce the standard error of target quantitation down to 7%. As a proof of concept, we show multiplexed quantitation of three microRNA species in total RNA of the human brain and liver.
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