lyophilized powder, ≥5,000 units/mg protein (Lowry)
recombinant, expressed in E. coli, buffered aqueous solution; ≥5 units/ml
recombinant, expressed in E. coli, 20 U/mg
recombinant, expressed in E. coli, 30 U/mg
recombinant, expressed in E. coli, ≥16 U/mg, buffered aqueous solution
recombinant, expressed in E. coli, buffered aqueous solution; ≥1.25 U/ml
≥90% (SDS-PAGE), recombinant, expressed in E. coli, buffered aqueous glycerol solution, >20,000 units/mg protein
≥0.007 unit/mg solid