5 units/μL; with 10× PCR reaction buffer without MgCl2
buffered aqueous glycerol solution; 5,000-15,000 units/mL
400-600 μg/mL protein
recombinant, expressed in E. coli; ≥500 units/mg protein
Type X, lyophilized powder, ≥50 units/mg protein
recombinant, expressed in E. coli BL21, 50-100 units/μg protein
recombinant, expressed in baculovirus infected insect cells, buffered aqueous glycerol solution; ≥350 units/mg protein
recombinant, expressed in E. coli BL21, vial of ≥200 units