. "At the beginning of this reaction, 1 molecule of 'MBD4 glycosylase:thymine complex' is present. At the end of this reaction, 1 molecule of 'DNA containing an MBD4-bound apurinic/apyrimidinic site', and 1 molecule of 'Thymine' are present.

This reaction takes place in the 'nucleus' and is mediated by the 'DNA N-glycosylase activity' of 'MBD4 glycosylase'.
"^^ . . . . . "Cleavage of thymine by MBD4 glycosylase"^^ . . . .