CcTET oxidation assays at 37 °C under pH 5.8, 7.0,
and 8.0.
The reaction mix contains 1 μM 5mC containing dsDNA, 2 μM
CcTET, 50 mM Bis-Tris, pH 5.8 (or HEPES, pH 7.0 or 8.0), 75 μM
Fe(NH4)2(SO4)2, 2 mM ascorbic
acid, 1 mM α-KG, and 2.5 mM DTT for 30 min at 37 °C and
then quenched by heating to 100 °C for 5 min and immediately
cooled in an ice bath.