. "At the beginning of this reaction, 1 molecule of 'hSMUG1glycosylase:uracil complex' is present. At the end of this reaction, 1 molecule of 'Uracil', and 1 molecule of 'DNA containing an hSMUG1-bound apurinic/apyrimidinic site' are present.

This reaction takes place in the 'nucleus' and is mediated by the 'single-strand selective uracil DNA N-glycosylase activity' of 'hSMUG1 glycosylase'.
"^^ . . . . . . "Cleavage of uracil by hSMUG1 glycosylase"^^ . . . .