lyophilized powder, recombinant, expressed in E. coli
lyophilized powder, 1,500-3,000 units/mg protein (using benzylpenicillin)
Type III, lyophilized powder, 6-18 units/mg protein (using benzylpenicillin)
Type IV, lyophilized powder, 0.2-0.6 units/mg protein (using benzylpenicillin)
Protein ≥70 % by biuret, powder
buffered aqueous glycerol solution, ≥200 units/mg protein (Bradford)
recombinant, expressed in E. coli
lyophilized powder, 20-40 units/mg protein