. "Authored: Matthews, L, 2004-02-09 03:00:00"^^ . "Depyrimidination of a damaged nucleotide is mediated by a pyrimidine-specific DNA glycosylase. The glycosylase cleaves the N-C1' glycosidic bond between the damaged DNA base and the deoxyribose sugar generating a free base and an apyrimidinic (AP) site."^^ . . . . . . . "Depyrimidination"^^ . . . . . . . .