Provided is a convenient and economical testing method capable of detecting a detection target nucleic acid (e.g., mutation type gene) with high sensitivity and high accuracy.
A method including selectively amplifying a detection target nucleic acid by inhibiting amplification of a detection non-target nucleic acid (e.g., wild-type gene) in a test sample by using, in a nucleic acid amplification reaction, an oligonucleotide analog containing one or more kinds of one or more unit structures of various nucleoside analogs represented by the following formula (I):
wherein the symbols are as defined in the DESCRIPTION, and the like, or a salt thereof, as a clamp nucleic acid, and detecting the amplified nucleic acid.
本发明提供了一种方便、经济的检测方法,能够高灵敏度、高准确度地检测检测目标核酸(如突变型
基因)。
该方法包括在核酸扩增反应中,使用一种寡核苷酸类似物,该类似物含有下式(I)代表的各种核苷类似物的一种或多种单位结构,通过抑制检测样品中检测非目标核酸(如野生型
基因)的扩增,选择性地扩增检测目标核酸:
其中符号如说明书中定义的那样,或类似物或其盐作为钳夹核酸,并检测扩增的核酸。