The present invention provides a method for detecting the presence or absence of a guanine-abasic site, the method being a process for detecting guanine opposite at least one abasic sites generated in a double-stranded DNA, comprising:
(1) step 1 of site-selectively cleaving at least one abasic sites in a double-stranded DNA using an enzyme;
(2) step 2 of modifying the amino group at position 2 of guanine opposite the abasic sites using a modifier; and
(3) step 3 of performing polymerase chain reaction on the modified double-stranded DNA obtained by conducting step 1 and step 2, which serves as a template, to search for the presence or absence of an amplification product, the sequence of steps 1 and 2 being not limited to the order presented.
本发明提供了一种检测
鸟嘌呤碱性位点存在与否的方法,该方法是一种检测双链DNA中产生的至少一个与碱性位点相对的
鸟嘌呤的过程,包括:
(1) 步骤 1:使用酶在双链 DNA 中选择性地裂解至少一个消旋位点;
(2) 第 2 步:使用修饰剂修饰与消减位点相对的
鸟嘌呤第 2 位上的
氨基;以及
(3) 步骤 3:对通过步骤 1 和步骤 2 获得的经修饰的双链 DNA(作为模板)进行聚合酶链式反应,以检测扩增产物的存在与否,步骤 1 和步骤 2 的顺序不限。