Activity:, ~750ug/ml, Unit Definition: 1 A260 unit is equivalent to 50ug, Quality Control: Digestion with EcoRI and HindIII generates the characteristic 5 and 8 bands. Nuclease: None Detected, Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months after receipt at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.