One unit of this Restriction Enzyme will digest 1{mu lower case}g of DNA in 60 minutes in 50mL r x n volume. Each comes in a recyclable packaging that holds the enzyme, buffers, and a lot-specific product information sheet that contains details of the rigorous quality control assays performed, product storage and usage information, protocols, and references.Note: All restriction enzymes require storage at -20°C. A ship date is required. Available to US customers only.