5'-G^T G C A C-3' 3'-C A C G T^G-5' Unit Definition: One unit is defined as the amount of Alw44l required to digest 1ug of lambda DNA-Smal fragments in 1 hour at 37°C in 50ul of assay buffer. Diluent Buffer: 10mM Tris-HCl, pH 7.4, 100mM KCl, 1mM EDTA, 1mM DTT, 0.2mg/ml BSA, 50% glycerol. Storage Buffer: Supplied as a liquid in 10mM Tris-HCl pH 7.5, 50mM KCl, 1mM DTT, 0.1mM EDTA, 0.2mg/ml BSA, 50% glycerol. Supplied with: R1625-Restriction Enzyme Buffer A (double digests): 1X Buffer composition-Supplied as a liquid containing 33mM Tris-acetate pH 7.9, 10mM magnesium acetate, 66mM potassium acetate, 0.1mg/ml BSA. Incubate at 37°C.