Probes, methods and kits for detecting and measuring abasic (AP) sites in a nucleic acid are provided. Aspects of the methods include determining glycosylase enzyme activity. Further provided herein are methods of quantifying AP sites in genomic DNA, and quantifying the amount of DNA damage. The subject probes include a fluorophore linked to an alpha nucleophile that reacts with the AP site of the nucleic acid to produce a highly fluorescent conjugate.
提供用于检测和测量核酸中脱
嘌呤(AP)位点的探针、方法和试剂盒。该方法的一些方面包括确定醇基化酶酶活性。此外,还提供了一种在
基因组DNA中定量AP位点和DNA损伤量的方法。所述探针包括与α亲核试剂相连的荧光团,该试剂与核酸的AP位点发生反应,产生高度荧光的共轭物。