a-Glucosidase from Saccharomyces cerevisiae,Type I, lyophilized powder, >=10 units/mg protein (using p-nitrophenyl a-D-glucoside as substrate.)

Glucose-6-phosphate Dehydrogenase from Leuconostoc mesenteroides,TypexXIII, ammonium sulfate suspension, 550-1,100 units/mg protein (biuret), >=2.0 mg/mL Biuret

Acetylcholinesterase from Electrophorus electricus (electric eel),Type V-S, lyophilized powder, >=1,000 units/mg protein

Citrate Synthase from porcine heart,ammonium sulfate suspension, >=100 units/mg protein

Creatine Phosphokinase from bovine heart,Type III, salt-free, lyophilized powder, >=30 units/mg protein

Glyceraldehyde-3-phosphate Dehydrogenase from rabbit muscle,lyophilized powder, >=75 units/mg protein

B-Galactosidase from Escherichia coli,Grade VIII, lyophilized powder, >=500 units/mg protein

Peroxidase from horseradish,Type VI, essentially salt-free, lyophilized powder, >=250 units/mg solid (using pyrogallol)

L-Lactic Dehydrogenase from rabbit muscle,TypexI, lyophilized powder, 600-1,200 units/mg protein

Penicillinase from Bacillus cereus,lyophilized powder, >=1500.00 units/mg protein (using benzylpenicillin)

Pyruvate Kinase from rabbit muscle,Type III, lyophilized powder, 350-600 units/mg protein

TEV Protease,