recombinant, expressed in E. coli, ≥80 U/g
recombinant, expressed in E. coli, ≥10 U/mg
recombinant, expressed in mouse NSO cells, ≥95% (SDS-PAGE)
lyophilized powder, ≥75 units/mg protein
ammonium sulfate suspension, ≥150 units/mg protein (biuret)
lyophilized powder, ≥15 units/mg solid
lyophilized powder, ≥150 units/mg protein
lyophilized, powder, white, ~35 U/mg