Biochem/physiol Actions Hydrolyzes 5′-phosphodiester bonds of DNA.
Other Notes: One μmolar unit is approximately equal to 85 A260 units, where an A260 unit corresponds to a ΔA260 of 1.0 in 30 minutes at pH 8.8 at 37 °C in a reaction volume of 3.55 mL with a light path length of 1 cm.
Unit Definition: One unit will produce 1.0 μmole of acid-soluble polynucleotides from native DNA per minute at pH 8.8 at 37 °C, based on an extinction coefficient (ε260) of 10,000 for the mixed nucleotides.