State Key Laboratory of Chemo/Biosensing and Chemometrics;
College of Chemistry and Chemical Engineering;
Molecular Science and Biomedicine Laboratory;
Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology;
Hunan University;
Changsha 410082;
China;
DNA modification; N^(6)-Methyladenine; Epigenetic mark; Methyltransferase; Demethylase;