Cyclic enzymatic repairing-mediated dual-signal amplification for real-time monitoring of thymine DNA glycosylase†
Abstract
We develop a new fluorescence method for real-time monitoring of thymine DNA glycosylase (TDG) activity through cyclic enzymatic repairing-mediated dual-signal amplification. This method exhibits excellent sensitivity with a detection limit of 5.6 × 10−7 U μL−1, and it can be used to determine kinetic parameters and quantify TDG activity from even single cancer cells.