Enzyme Explorer

Class Index

 
Sigma offers over 1,600 enzymes as well as associated inhibitors and substrates.

TO SEARCH FOR AN ENZYME BY EC # OR REACTION CATALYZED...
1. Click on a category in the menu below
2. Scroll down the list to the enzyme of interest
3. Click on the Product # to access product listing and related information including:
inhibitors, substrates, assay procedures, Product Information Sheets, C of A and MSDS
 
       1.x.x.x  Oxidoreductases
       2.x.x.x  Transferases
       3.x.x.x  Hydrolases (Acting on esters)
       3.x.x.x  Hydrolases (Glycosidases)
       3.x.x.x  Hydrolases (Other)
       4.x.x.x  Lyases
       5.x.x.x  Isomerases
       6.x.x.x  Ligases
  Oxidoreductases  
E.C. # Product Name Product # 
  Acting on hydroxyl groups  
1.1.1.1 Alcohol Dehydrogenase from Saccharomyces cerevisiae, suitable for conventional determination of b-NAD, b-NADH, ethanol and acetaldehyde, Lyophilized powder, Solid with buffer salts, 300-500 units/mg protein A7011
1.1.1.1 Alcohol Dehydrogenase from Saccharomyces cerevisiae, suitable for recycling micro-assay of b-NAD and b-NADH, Lyophilized powder, Solid with buffer salts, minimum 300 units/mg protein A3263
1.1.1.1 Alcohol dehydrogenase–Agarose from Baker's yeast (S. cerevisiae), Lyophilized powder, 900-1,200 units/g agarose, pH 8.8, 30°C A2529
1.1.1.1 Alcohol Dehydrogenase equine liver, Lyophilized powder, ³0.5 units/mg protein (TCA/Biuret) A9589
1.1.1.2 Alcohol dehydrogenase, NADP+ dependent Thermoanaerobium brockii, Lyophilized powder, 30-90 units/mg protein A9287
1.1.1.2 Alcohol Dehydrogenase Thermoanaerobium brockii, Lyophilized powder, 5-15 units/mg protein A8435
1.1.1.2 (S)-Aromatic Alcohol Dehydrogenase, NADP+ dependent from Thermoanaerobium sp., Lyophilized powder, 1-5 units/mg solid A9685
1.1.1.2 Alcohol dehydrogenase, NADP+ dependent Thermoanaerobium brockii, Lyophilized powder, 30-90 units/mg protein A9287
1.1.1.2 Alcohol Dehydrogenase Thermoanaerobium brockii, Lyophilized powder, 5-15 units/mg protein A8435
1.1.1.2 (S)-Aromatic Alcohol Dehydrogenase, NADP+ dependent from Thermoanaerobium sp., Lyophilized powder, 1-5 units/mg solid A9685
1.1.1.6 Glycerol Dehydrogenase from Bacillus megaterium, Lyophilized powder, ³15 units/mg solid, pH 8.8 G6267
1.1.1.6 Glycerol Dehydrogenase from Cellulomonas sp., Lyophilized powder, 50-125 units/mg protein, pH 10.0 G3512
1.1.1.6 Glycerol Dehydrogenase Enterobacter aerogenes, Lyophilized powder, 20-80 units/mg protein, pH 10.0 G4783
1.1.1.8 a-Glycerophosphate Dehydrogenase from rabbit muscle, Type I, Ammonium sulfate suspension, 100-300 units/mg protein G6751
1.1.1.8 a-Glycerophosphate Dehydrogenase from rabbit muscle, Type X, Lyophilized powder, 100-300 units/mg protein G6880
1.1.1.10 L-Xylulose Reductase from pigeon liver, Ammonium sulfate suspension, 5-15 units/mg protein (BCA) X5250
1.1.1.14 Sorbitol Dehydrogenase from sheep liver, Lyophilized powder, minimum 20 units/mg protein S3764
1.1.1.14 Sorbitol Dehydrogenase from sheep liver, 20-40 units/mg protein S1128
1.1.1.14 SDH Control (Sorbitol Dehydrogenase) S8135
1.1.1.18 myo-Inositol Dehydrogenase from Enterobacter aerogenes, Lyophilized powder, 25-50 units/mg protein I5010
1.1.1.18 myo-Inositol Dehydrogenase from Enterobacter aerogenes, Lyophilized powder, 10-20 units/mg protein I0255
1.1.1.18 myo-Inositol Dehydrogenase from Enterobacter aerogenes, 10-20 units/mL, Ammonium sulfate suspension I3517
1.1.1.22 Uridine-5¢-diphosphoglucose Dehydrogenase from bovine liver, Type III, Lyophilized powder, 0.02-0.08 units/mg protein U5500
1.1.1.22 Uridine-5¢-diphosphoglucose Dehydrogenase from bovine liver, Type VI, Lyophilized powder, 0.3-0.6 units/mg protein U7251
1.1.1.26 Glyoxylate reductase from Spinacia oleracea (spinach), Ammonium sulfate suspension, approx. 50 units/mg protein (Biuret) G5259
1.1.1.27 L-Lactic Dehydrogenase LDH-5 (M4) Isoenzyme solution from bovine muscle, Type XXVI, Ammonium sulfate suspension, minimum 600 units/mg protein L0508
1.1.1.27 L-Lactic Dehydrogenase LDH-5 (M4) Isoenzyme solution from porcine muscle, Type XXXII-S, Ammonium sulfate suspension, approx. 1,000 units/mg protein L5762
1.1.1.27 L-Lactic Dehydrogenase LDH-2 (H3M) Isoenzyme from human erythrocytes, Type XX, 98% (homogeneous), Ammonium sulfate suspension, approx. 150 units/mg protein L3757
1.1.1.27 L-Lactic Dehydrogenase solution porcine heart, Ammonium sulfate suspension, minimum 400 units/mg protein (Biuret) L7525
1.1.1.27 L-Lactic Dehydrogenase Bacillus stearothermophilus, recombinant, expressed in Escherichia coli, Lyophilized powder, minimum 200 units/mg protein, pH 6.0, 30°C (Lowry) L3151
1.1.1.27 L-Lactic Dehydrogenase from bovine muscle, Type X, Ammonium sulfate suspension, minimum 600 units/mg protein L1378
1.1.1.27 L-Lactic Dehydrogenase isoenzymes LDH-1 (H4) and LDH-2 (H3M) from human erythrocytes, Type XII, Ammonium sulfate suspension, 300-500 units/mg protein L3379
1.1.1.27 L-Lactic Dehydrogenase from rabbit muscle, Type XI, Salt-free, lyophilized powder, 700-1,200 units/mg protein L1254
1.1.1.27 L-Lactic Dehydrogenase solution from rabbit muscle, Type I, Ammonium sulfate suspension, 40-100 units/mg protein L2375
1.1.1.27 L-Lactic Dehydrogenase solution from rabbit muscle, Type II, Ammonium sulfate suspension, 800-1,200 units/mg protein L2500
1.1.1.27 L-Lactic Dehydrogenase solution from rabbit muscle, Type V-S, >95%, Ammonium sulfate suspension, minimum 700 units/mg protein L5132
1.1.1.27 L-Lactic dehydrogenase Insoluble enzyme attached to beaded agarose from rabbit muscle, Ammonium sulfate suspension, 300-500 units/g agarose L8011
1.1.1.27 L-Lactic dehydrogenase Insoluble enzyme attached to polyacrylamide from rabbit muscle, 25-40 units/g solid L8253
1.1.1.27 L-Lactic Dehydrogenase LDH-1 (H4) Isoenzyme solution from rabbit heart, Type XXXVI, Ammonium sulfate suspension, 400-600 units/mg protein L2889
1.1.1.27 L-Lactic Dehydrogenase from chicken heart, Type VIII, Ammonium sulfate suspension, 500-800 units/mg protein L9126
1.1.1.27 L-Lactic Dehydrogenase solution bovine heart, Type III, Ammonium sulfate suspension, 500-700 units/mg protein L2625
1.1.1.27 L-Lactic Dehydrogenase solution bovine heart, Type IX, Ammonium sulfate suspension, minimum 400 units/mg protein L0377
1.1.1.27 L-Lactic Dehydrogenase solution bovine heart, Type XVII, Buffered aqueous glycerol solution, 400-600 units/mg protein L1006
1.1.1.27 L-Lactic Dehydrogenase solution from rabbit muscle, Type XXXIX, Buffered aqueous glycerol solution, 700-1,000 units/mg protein L2518
1.1.1.28 D-Lactic Dehydrogenase Lactobacillus leichmanii, Lyophilized powder, 150-300 units/mg protein L3888
1.1.1.28 D-Lactic Dehydrogenase solution from Lactobacillus leichmanii, Ammonium sulfate suspension, 250-500 units/mg protein (Biuret) L2011
1.1.1.28 D-Lactic Dehydrogenase Leuconostoc mesenteroides, Ammonium sulfate suspension, 1,000-3,000 units/mg protein (Biuret) L2395
1.1.1.28 D-Lactic Dehydrogenase from Staphylococcus epidermidis, Lyophilized powder, minimum 10 units/mg solid L9636
1.1.1.30 b-Hydroxybutyrate Dehydrogenase Rhodopseudomonas sphaeroides, Type V, Lyophilized powder, 250-750 units/mg protein H8509
1.1.1.30 b-Hydroxybutyrate Dehydrogenase from Rhodopseudomonas sphaeroides, Type II, Ammonium sulfate suspension, 5-10 units/mg protein (Biuret) H6126
1.1.1.30 b-Hydroxybutyrate Dehydrogenase from Pseudomonas lemoignei, Lyophilized powder, 200-750 units/mg protein H9408
1.1.1.30 b-Hydroxybutyrate Dehydrogenase from Rhodopseudomonas sphaeroides, Type III, Ammonium sulfate suspension, minimum 20 units/mg protein (Biuret) H4005
1.1.1.30 b-Hydroxybutyrate Dehydrogenase from Pseudomonas lemoignei, 50-100 units/mL, Ammonium sulfate suspension H6523
1.1.1.37 Malic Dehydrogenase from Thermus flavus, Lyophilized powder, minimum 50 units/mg solid M7032
1.1.1.37 Malic Dehydrogenase porcine heart, Buffered aqueous glycerol solution, approx. 1,000 units/mg protein (Biuret) M2634
1.1.1.37 Malic Dehydrogenase porcine heart, Ammonium sulfate suspension, approx. 400 units/mg protein (Biuret) M7383
1.1.1.37 Malic Dehydrogenase from bovine heart, Ammonium sulfate suspension, 2000-4000 units/mg protein (modified Warburg-Christian) M9004
1.1.1.37 Malic Dehydrogenase Thermus sp., recombinant, expressed in Escherichia coli, Ammonium sulfate suspension, 100-200 units/mg protein (Lowry) M1035
1.1.1.42 Isocitrate Dehydrogenase preparation porcine heart, Type I I1877
1.1.1.42 Isocitric Dehydrogenase (NADP) solution porcine heart, Type IV, Buffered aqueous glycerol solution, 3-20 units/mg protein (Biuretapprox. 0.1% of that activity is obtained with NAD as cofactor.) I2002
1.1.1.42 1,3-Indandione, 97% I-200-2
1.1.1.42 Isocitrate Dehydrogenase preparation porcine heart, Lyophilized powder, 20-60 units/mg protein (Biuret) I2516
1.1.1.44 6-Phosphogluconic Dehydrogenase from Lactobacillus sp., Lyophilized powder P0235
1.1.1.44 6-Phosphogluconic Dehydrogenase from Saccharomyces cerevisiae, Lyophilized powder, 3-6 units/mg solid P4553
1.1.1.44 6-Phosphogluconic Dehydrogenase from torula yeast, Type IV, Ammonium sulfate suspension, minimum 20 units/mg protein P0507
1.1.1.44 6-Phosphogluconic Dehydrogenase from sheep liver, Lyophilized powder, 2-10 units/mg protein P8406
1.1.1.47 Glucose Dehydrogenase Bacillus megaterium, Lyophilized powder, 50-150 units/mg solid G7653
1.1.1.47 Glucose Dehydrogenase from Thermoplasma acidophilum, recombinant, expressed in Escherichia coli, Ammonium sulfate suspension, minimum 100 units/mg protein (glucose substrate), minimum 50 units/mg protein (galactose substrate), Solution G5909
1.1.1.48 b-Galactose Dehydrogenase solution from Pseudomonas fluorescens, recombinant, expressed in Escherichia coli, Ammonium sulfate suspension, minimum 50 units/mg protein (Biuret) G6637
1.1.1.49 Glucose-6-phosphate Dehydrogenase–Agarose from Baker's yeast (S. cerevisiae), Ammonium sulfate suspension, 1,000-1,750 units/g agarose, 30°C G5506
1.1.1.49 Glucose-6-phosphate Dehydrogenase from Leuconostoc mesenteroides, recombinant, expressed in Escherichia coli, Lyophilized powder, 550-1,100 units/mg protein (Biuret) G8529
1.1.1.49 Glucose-6-phosphate Dehydrogenase from Leuconostoc mesenteroides, recombinant, expressed in Escherichia coli, Ammonium sulfate suspension, 550-1,100 units/mg protein (Biuret) G8404
1.1.1.49 Glucose-6-phosphate Dehydrogenase from torula yeast, Ammonium sulfate suspension, 300-600 units/mg protein (Biuret) G8289
1.1.1.49 Glucose-6-phosphate Dehydrogenase Biotin Labeled from Baker's yeast, Type XV-B, Lyophilized powder, 80-160 units/mg protein G3386
1.1.1.49 Glucose-6-phosphate Dehydrogenase from baker's yeast (S. cerevisiae), Type XV, Lyophilized powder, 200-400 units/mg protein (modified Warburg-Christian) G6378
1.1.1.49 Glucose-6-phosphate Dehydrogenase from baker's yeast (S. cerevisiae), Type IX, Lyophilized powder, 200-400 units/mg protein (modified Warburg-Christian) G4134
1.1.1.49 Glucose-6-phosphate Dehydrogenase from baker's yeast (S. cerevisiae), Type VII, Ammonium sulfate suspension, 300-400 units/mg protein (modified Warburg-Christian) G7877
1.1.1.49 Glucose-6-phosphate Dehydrogenase from baker's yeast (S. cerevisiae), Type V, Dry ammonium sulfate cake, ³150 units/mg protein (modified Warburg-Christian) G7750
1.1.1.49 Glucose-6-phosphate Dehydrogenase from torula yeast, Lyophilized powder, 200-600 units/mg protein (BiuretContains approx. 20% sodium citrate based on dry weight.) G8164
1.1.1.50 3a-Hydroxysteroid Dehydrogenase preparation from Pseudomonas testosteroni, Lyophilized powder, 20-50 units/mg protein H1506
1.1.1.50 3a-Hydroxysteroid Dehydrogenase preparation from Pseudomonas testosteroni, 50-100 units/mL, Ammonium sulfate suspension H6398
1.1.1.67 Mannitol Dehydrogenase from Leuconostoc mesenteroides M9532
1.1.1.95 3-Phosphoglycerate Dehydrogenase from chicken liver, Lyophilized powder, 1.5-7.0 units/mg protein (modified Warburg-Christian) P4579
1.1.1.119 Glucose Dehydrogenase, NADP dependent from Cryptococcus uniguttulatus, Lyophilized powder, minimum 10 units/mg solid G0649
1.1.1.176 12a-Hydroxysteroid Dehydrogenase from Bacillus sphaericus, Lyophilized powder, 150-350 units/mg protein (Lowry) H2265
1.1.1.205 IMPDH I1782
1.1.1.233 N-Acylmannosamine 1-Dehydrogenase from Pseudomonas sp., Lyophilized powder, minimum 45 units/mg protein A7561
1.1.2.3 L-Lactic Dehydrogenase (cytochrome) from baker's yeast (S. cerevisiae), Type IV-SS, Ammonium sulfate suspension, 0.1-0.6 units/mg protein (Biuret) L4506
1.1.3.4 Glucose Oxidase Aspergillus niger, Type V-S, approx. 1,000 units/mL (without added oxygen), Buffered aqueous solution G6891
1.1.3.4 Glucose Oxidase Aspergillus niger, 2,000-10,000 units/g solid (without added oxygen) G6766
1.1.3.4 Glucose Oxidase Aspergillus niger, Type VII, Lyophilized powder, 100,000-200,000 units/g solid (without added oxygen) G2133
1.1.3.4 Glucose Oxidase Aspergillus niger, Type II, 15,000-25,000 units/g solid (without added oxygen) G6125
1.1.3.4 Glucose Oxidase Aspergillus niger, Type X-S, Lyophilized powder, 100,000-250,000 units/g solid (without added oxygen) G7141
1.1.3.4 Glucose Oxidase Aspergillus niger, Buffered aqueous solution, minimum 200 units/mg protein (Biuret) G9010
1.1.3.4 Glucose Oxidase Aspergillus niger, Type II-S, 25,000-50,000 units/g solid (without added oxygen) G6641
1.1.3.4 Glucose Oxidase Aspergillus niger, Type VII-S, Lyophilized powder, 100,000-250,000 units/g solid (without added oxygen) G7016
1.1.3.6 Cholesterol Oxidase from Pseudomonas fluorescens, Lyophilized powder, 10-50 units/mg protein C7149
1.1.3.6 Cholesterol Oxidase microbial, recombinant, expressed in Escherichia coli, Lyophilized powder C1235
1.1.3.6 Cholesterol Oxidase from Streptomyces sp., Lyophilized powder, minimum 25 units/mg protein C8649
1.1.3.6 Cholesterol Oxidase from Cellulomonas sp., Buffered aqueous solution, 20-60 units/mg protein (Biuret) C5421
1.1.3.9 Galactose Oxidase from Dactylium dendroides, Lyophilized powder, 500-1,500 units/mg protein G7907
1.1.3.9 Galactose Oxidase from Dactylium dendroides, Lyophilized powder, minimum 3,000 units/g solid G7400
1.1.3.10 Pyranose Oxidase from Cariolus sp., recombinant, expressed in Escherichia coli, 2.7 units/mg protein P4234
1.1.3.13 Alcohol Oxidase Candida boidinii, Lyophilized powder, 5-15 units/mg protein A6941
1.1.3.13 Alcohol Oxidase from Hansenula sp., Vacuum-dried powder, 20-40 units/mg protein (Bradford) A0438
1.1.3.15 Glycolate Oxidase Spinacia oleracea (spinach), Ammonium sulfate suspension, 3-12 units/mg protein, pH 7.8 (Biuret) G8260
1.1.3.17 Choline Oxidase from Alcaligenes sp., Lyophilized powder, approx. 10 units/mg solid C5896
1.1.3.17 Choline Oxidase from Arthrobacter globiformis, Lyophilized powder, 8-20 units/mg solid C4405
1.1.3.21 Glycerol 3-phosphate Oxidase from Pediococcus sp., Lyophilized powder, 40-80 units/mg solid, pH 8.1 G9637
1.1.3.21 Glycerol 3-phosphate Oxidase from Streptococcus thermophilus, Lyophilized powder, minimum 10 units/mg solid, pH 7.0 G4388
1.1.3.21 Glycerol 3-phosphate Oxidase from Aerococcus viridans, Lyophilized powder, minimum 70 units/mg solid, pH 8.1 G9888
1.1.3.22 Xanthine Oxidase from buttermilk, Lyophilized powder, 0.4-1.0 units/mg protein X4376
1.1.3.22 Xanthine Oxidase from buttermilk, Grade I, Ammonium sulfate suspension, approx. 0.5 units/mg protein X1875
1.1.3.22 Xanthine Oxidase from buttermilk, Grade III, Ammonium sulfate suspension, 1-2 units/mg protein X4500
1.1.3.22 Xanthine Oxidase microbial, Lyophilized powder, minimum 7 units/mg solid X2252
1.1.3.22 Xanthine Oxidase from buttermilk, Grade IV, Ammonium sulfate suspension, 0.1-0.4 units/mg protein X4875
1.1.3.29 N-Acylhexosamine Oxidase from Pseudomonas sp., Solution, minimum 20 units/mg protein A0186
1.1.99.11 D-Fructose Dehydrogenase from Gluconobacter industrius, Lyophilized powder, 400-1,200 units/mg protein F5152
1.1.99.11 D-Fructose Dehydrogenase from Gluconobacter industrius, Lyophilized powder, minimum 20 units/mg solid F4892
  Acting on aldehydes or oxo groups  
1.2.1.1 Formaldehyde Dehydrogenase (glutathione-dependent) from Candida boidinii, Lyophilized powder, 7-20 units/mg protein F4136
1.2.1.2 Formate Dehydrogenase Candida boidinii, Lyophilized powder, 1.5-4.5 units/mg protein F5632
1.2.1.2 Formate Dehydrogenase Candida boidinii, Lyophilized powder, 5-15 units/mg protein F8649
1.2.1.5 Aldehyde Dehydrogenase, potassium-activated baker's yeast (S. cerevisiae), Lyophilized powder, 2-10 units/mg protein A6338
1.2.1.12 Glyceraldehyde-3-phosphate Dehydrogenase human erythrocytes, Lyophilized powder, 50-150 units/mg protein G6019
1.2.1.12 Glyceraldehyde-3-phosphate Dehydrogenase from chicken muscle, Lyophilized powder, 40-100 units/mg protein G9263
1.2.1.12 Glyceraldehyde-3-phosphate Dehydrogenase from rabbit muscle, Ammonium sulfate suspension, 80-120 units/mg protein (Biuret) G0763
1.2.1.12 Glyceraldehyde-3-phosphate Dehydrogenase from rabbit muscle, Lyophilized powder, approx. 80 units/mg protein G2267
1.2.1.12 Glyceraldehyde-3-phosphate Dehydrogenase from Baker's yeast (S. cerevisiae), Lyophilized powder, 70-140 units/mg protein G5537
1.2.1.12 Glyceraldehyde-3-phosphate Dehydrogenase Agarose from Baker's yeast (S. cerevisiae), Lyophilized powder, 50-150 units/g dry agarose, pH 7.6, 30°C G0389
1.2.1.16 Succinic-Semialdehyde Dehydrogenase from Pseudomonas fluorescens, Lyophilized powder, 10-30 units/mg protein S3907
1.2.1.46 Formaldehyde Dehydrogenase from Pseudomonas putida, Lyophilized powder, 1-6 units/mg solid F1879
1.2.3.3 Pyruvate Oxidase bacterial, Lyophilized powder, minimum 1.5 units/mg P4591
1.2.3.3 Pyruvate Oxidase from Aerococcus sp., Lyophilized powder, minimum 35 units/mg protein (Biuret) P4105
1.2.3.4 Oxalate Oxidase from barley seedlings, Lyophilized powder, 0.5-1.5 units/mg solid O4127
1.2.4.2 a-Ketoglutarate Dehydrogenase from porcine heart, Buffered aqueous glycerol solution, 0.1-1 units/mg protein (Lowry) K1502
  Acting on CH-CH  
1.3.3.5 Bilirubin Oxidase from Myrothecium verrucaria, Lyophilized powder, 15-65 units/mg protein B0390
1.3.3.6 Acyl coenzyme A oxidase from Arthrobacter sp., Lyophilized powder, 10-40 units/mg protein A2167
1.3.3.6 Acyl coenzyme A oxidase from Candida sp., Lyophilized powder, 10-30 units/mg protein A2903
  Acting on CH-NH2  
1.4.1.1 L-Alanine Dehydrogenase Bacillus subtilis, Buffered aqueous glycerol solution, approx. 30 units/mg protein (Lowry) A7653
1.4.1.1 L-Alanine Dehydrogenase Bacillus subtilis, Ammonium sulfate suspension, approx. 40 units/mg protein (Lowry) A7189
1.4.1.3 L-Glutamic Dehydrogenase solution from bovine liver, Type I, Ammonium sulfate suspension, approx. 40 units/mg protein G2501
1.4.1.3 L-Glutamic Dehydrogenase solution from bovine liver, Type II, Buffered aqueous glycerol solution, approx. 40 units/mg protein G2626
1.4.1.3 Glutamate Dehydrogenase bovine liver, Type III, Lyophilized powder, approx. 25 units/mg protein G7882
1.4.1.4 L-Glutamic Dehydrogenase (NADP) from Proteus sp., Buffered aqueous solution, minimum 400 units/mg protein (Biuret) G4387
1.4.1.4 L-Glutamic Dehydrogenase (NADP) from Candida utilis, Lyophilized powder, 50-200 units/mg protein G5027
1.4.1.20 L-Phenylalanine Dehydrogenase from Sporosarcina sp., Lyophilized powder, minimum 6 units/mg solid P4798
1.4.3.2 L-Amino Acid Oxidase from Crotalus durissus venom, Ammonium sulfate suspension, 3-8 units/mg protein A2805
1.4.3.2 L-Amino Acid Oxidase from Crotalus adamanteus, Type I, Dried venom, ³0.3 unit/mg solid A9253
1.4.3.2 L-Amino Acid Oxidase Bothrops atrox venom, Type II, Dried venom, minimum 0.2 unit/mg solid A4257
1.4.3.2 L-Amino Acid Oxidase solution from Crotalus adamanteus, Type IV, minimum 4 units/mg protein (Biuret), Aqueous suspension A9378
1.4.3.2 L-Amino Acid Oxidase from Crotalus atrox, Type VI, Dried venom, 0.2-0.3 unit/mg solid A5147
1.4.3.3 D-Amino Acid Oxidase porcine kidney, minimum 0.05 unit/mg solid, Crude powder A9128
1.4.3.3 D-Amino Acid Oxidase porcine kidney, Lyophilized powder, minimum 1.5 units/mg protein A5222
1.4.3.4 Tyramine Oxidase from Arthrobacter sp., approx. 3 units/mg solid T0905
1.4.3.6 Diamine Oxidase from porcine kidney, minimum 0.05 unit/mg solid D7876
1.4.3.11 L-Glutamate Oxidase from Streptomyces sp., Lyophilized powder, minimum 5 units/mg solid G0400
1.4.3.14 Lysine Oxidase from Trichoderma viride, Lyophilized powder, 20-60 units/mg protein L6150
  Acting on CH-NH  
1.5.1.5 5,10-Methylenetetrahydrofolate Dehydrogenase from Saccharomyces cerevisiae, Type III, suitable for enzymatic assay of tetrahydrofolic acid, Ammonium sulfate suspension, 0.5-1.0 units/mg protein (modified Warburg-Christian) M4882
1.5.1.11 Octopine Dehydrogenase from scallops, Lyophilized powder, minimum 5 units/mg protein O1252
1.5.1.7 Saccharopine Dehydrogenase, NAD+, lysine-forming from baker's yeast (S. cerevisiae), Lyophilized powder, 40-80 units/mg protein S9383
1.5.3.1 Sarcosine Oxidase from Arthrobacter sp., Lyophilized powder, 5-15 units/mg protein S8764
1.5.3.1 Sarcosine Oxidase from Bacillus sp., Lyophilized powder, 25-50 units/mg solid S7897
1.5.3.1 Sarcosine Oxidase from Corynebacterium sp., Lyophilized powder, 5-10 units/mg protein S7759
1.5.3.x Fructosyl-Amino Acid Oxidase from Corynebacterium sp., recombinant, expressed in Escherichia coli, Lyophilized powder, minimum 0.45 units/mg protein F7296
1.5.99.1 Sarcosine Dehydrogenase from Pseudomonas sp., Lyophilized powder, 0.5-1.5 units/mg protein S4384
  Acting on NAD or NADP  
1.6.2.4 Cytochrome P450 Reductase rabbit liver induced with phenobarbital, approx. 90% (SDS-PAGE), Buffered aqueous glycerol solution, 25-75 units/mg protein (Bradford) C4839
1.6.4.2 Glutathione Reductase from spinach, Type VI, Ammonium sulfate suspension, 100-200 units/mg protein G3011
1.6.4.2 Glutathione Reductase baker's yeast (S. cerevisiae), Ammonium sulfate suspension, 100-300 units/mg protein (Biuret) G3664
1.6.4.2 Glutathione Reductase from wheat germ, Type II, minimum 0.08 units/mg protein G6004
1.6.4.5 Thioredoxin Reductase from Escherichia coli, >25 units/mg protein (Bradford) T7915
1.6.6.1 Nitrate Reductase from corn seedling, minimum 4 units/mL, Buffered aqueous glycerol solution N2397
1.6.6.1 Nitrate Reductase from corn seedling, Lyophilized powder, 10-40 units/mg protein N9523
1.6.6.2 Nitrate Reductase (NAD[P]H) from Aspergillus niger, Lyophilized powder, minimum 300 units/g solid N7265
1.6.99.2 DT Diaphorase from rat, approx. 90% (SDS-PAGE), Lyophilized powder D1190
1.6.99.2 DT Diaphorase human, approx. 90% (SDS-PAGE), Lyophilized powder D1315
1.6.99.3 NADH-FMN Oxidoreductase from Vibrio harveyi, Lyophilized powder, 0.01-0.05 unit/mg solid N3517
1.6.99.3 Cytochrome c reductase from porcine heart, Type I, Lyophilized powder, minimum 1.0 units/mg protein C3381
1.6.99.3 NADH-FMN Oxidoreductase from Vibrio harveyi, Lyophilized powder, 0.01-0.05 unit/mg solid N3517
1.6.99.3 Cytochrome c reductase from porcine heart, Type I, Lyophilized powder, minimum 1.0 units/mg protein C3381
1.6.99.7 Dihydropteridine Reductase from sheep liver, Buffered aqueous glycerol solution, 30-100 units/mg protein (Biuret) D6888
  Other nitrogenous donors  
1.7.3.3 Uricase from Candida sp., recombinant, expressed in Escherichia coli, Lyophilized powder, minimum 2 units/mg protein U0880
1.7.3.3 Uricase from Arthrobacter globiformis, Lyophilized powder, 15-30 units/mg protein, pH 9.0, 25°C (Biuret) U7128
  Acting on sulfur group donors  
1.8.1.4 Diaphorase Clostridium kluyveri, Lyophilized powder, 5-20 units/mg protein (Biuret, using 2,6-dichlorophenol-indophenol) D5540
1.8.1.4 Lipoamide Dehydrogenase from porcine heart, Ammonium sulfate suspension, 2-5 units/mg protein (using 2,6-dichlorophenol-indophenol) D3752
1.8.1.4 Lipoamide Dehydrogenase from porcine heart, Type III, Ammonium sulfate suspension, 100-200 units/mg protein (Biuret), Secondary activity: 5-15 units/mg protein Lipoic dehydrogenase, Secondary activity L2002
1.8.1.4 Lipoamide Dehydrogenase from bovine intestinal mucosa, Ammonium sulfate suspension, 100-200 units/mg protein (Biuret), Secondary activity: 3-15 units/mg protein Lipoic dehydrogenase, Secondary activity L6777
1.8.3.1 Sulfite Oxidase from chicken liver, Ammonium sulfate suspension, 20-70 units/mg protein (Biuret) S9526
  Acting on heme group donors  
1.9.6.1 Nitrate reductase (cytochrome) from Escherichia coli, Lyophilized powder, minimum 5 units/g solid N0519
  Acting on diphenols and related subs.  
1.10.3.2 Laccase from Rhus vernificera, Crude acetone powder, minimum 50 units/mg solid L2157
1.10.3.3 Ascorbate oxidase Cucurbita sp. Lyophilized powder 1,000-3,000 units/mg protein A0157
  Peroxide as Receptor  
1.11.1.1 NADH Peroxidase from Enterobacter hirae, Ammonium sulfate suspension, minimum 30 units/mg protein (Biuret) N6755
1.11.1.1 NADH Peroxidase from Streptococcus faecalis ATCC 11700, recombinant, expressed in Escherichia coli, >95% (SDS-PAGE), Buffered aqueous solution, 50-200 units/mg protein (Biuret) N0895
1.11.1.6 Catalase bovine liver, Aqueous solution, minimum 40,000 units/mg protein (E1%/405) C3155
1.11.1.6 Catalase bovine liver, Powder, 2,000-5,000 units/mg protein, cell culture tested C1345
1.11.1.6 Catalase-Agarose, pH 5.4, Ammonium sulfate suspension, catalase from bovine liver C9284
1.11.1.6 Catalase from murine liver, Ammonium sulfate suspension, minimum 900 units/mg protein C8531
1.11.1.6 Catalase from human erythrocytes, minimum 90% (SDS-PAGE), Buffered aqueous solution, >30,000 units/mg protein C3556
1.11.1.6 Catalase from canine liver, Ammonium sulfate suspension, minimum 900 units/mg protein C4138
1.11.1.6 Catalase bovine liver, 2,000-5,000 units/mg protein C9322
1.11.1.6 Catalase from bison liver, 2,000-5,000 units/mg protein C9447
1.11.1.6 Catalase preparation from Aspergillus niger, Ammonium sulfate suspension, 4,000-8,000 units/mg protein C3515
1.11.1.7 Lactoperoxidase bovine milk, Ammonium sulfate suspension, 50-150 units/mg protein L2130
1.11.1.7 Peroxidase Acidic Isoenzyme from horseradish, Type X, Ammonium sulfate suspension, approx. 250 units/mg protein (Biuret) P6140
1.11.1.7 Peroxidase horseradish, Type II, Essentially salt-free, lyophilized powder, 150-250 units/mg solid P8250
1.11.1.7 Peroxidase horseradish, Type I, Essentially salt-free, lyophilized powder, 50-150 units/mg solid P8125
1.11.1.7 Peroxidase from Glycine max (soybean), Essentially salt-free, lyophilized powder, 50-150 units/mg solid P1432
1.11.1.7 Peroxidase horseradish, Type XII, Essentially salt-free, lyophilized powder, 250-330 units/mg solid P8415
1.11.1.7 Peroxidase Highly stabilized from horseradish, Essentially salt-free, lyophilized powder, 200-300 units/mg solid P2088
1.11.1.7 Peroxidase horseradish, Type VI, Essentially salt-free, lyophilized powder, 250-330 units/mg solid P8375
1.11.1.7 Myeloperoxidase from human leukocytes, Lyophilized powder, minimum 50 units/mg protein M6908
1.11.1.7 Peroxidase from Arthromyces ramosus, Lyophilized powder, 50-200 units/mg solid P4794
1.11.1.7 Lactoperoxidase bovine milk, Lyophilized powder, 80-120 units/mg protein L2005
1.11.1.7 Lactoperoxidase bovine milk, Lyophilized powder, 80-150 units/mg protein L8257
1.11.1.7 Peroxidase horseradish, Essentially salt-free, lyophilized powder, 250-330 units/mg solid (using pyrogallol), Type VI-A P6782
1.11.1.9 Glutathione Peroxidase from human erythrocytes, Lyophilized powder, 30-100 units/mg protein G4013
1.11.1.9 Glutathione Peroxidase from bovine erythrocytes, Lyophilized powder, 300-700 units/mg protein G6137
1.11.1.10 Chloroperoxidase from Caldariomyces fumago, Buffered aqueous suspension, 1,000-2,000 units/mg protein (E1%/280RZ:Approx. 1.0) C0887
1.11.1.10 Chloroperoxidase from Caldariomyces fumago, minimum 3,000 units/mL, Buffered aqueous suspension C0278
  Acting on single donors with incorporation of molecular oxygen  
1.13.11.12 Lipoxidase preparation from Glycine max (soybean), Type I-B, Lyophilized powder, minimum 100,000 units/mg solid L7395
1.13.11.12 Lipoxidase preparation from Glycine max (soybean), Type IV, Ammonium sulfate suspension, 300,000-600,000 units/mg protein L3004
1.13.11.12 Lipoxidase preparation from Glycine max (soybean), Type V, Ammonium sulfate suspension, 500,000-1,000,000 units/mg protein L6632
1.13.11.3 Protocatechuate 3,4-Dioxygenase from Pseudomonas sp., Lyophilized powder, 3-5 units/mg solid P8279
1.13.12.4 Lactate Oxidase from Pediococcus sp. L0638
1.13.12.7 Lectin, TRITC labeled from Ulex europaeus (gorse, furze), Lyophilized powder L4889
1.13.12.7 Luciferase Photinus pyralis (firefly), Lyophilized powder, 10-25 × 106 light units/mg protein L9009
1.13.12.7 Luciferase Photinus pyralis (firefly), Lyophilized powder L9506
1.13.12.7 Luciferase Photinus pyralis (firefly), Lyophilized powder, minimum 10 × 106 light units/mg protein L1759
  Acting on paired donors with incorporation of molecular oxygen  
1.14.13.1 Salicylate Hydroxylase from Pseudomonas sp., Lyophilized powder, 0.5-3 units/mg protein S2907
1.14.13.2 p-Hydroxybenzoate Hydroxylase from Pseudomonas sp., Lyophilized powder, approx. 20 units/mg solid H9886
1.14.13.39 Nitric Oxide Synthase, Inducible mouse, Buffered aqueous solution N1783
1.14.13.39 Nitric Oxide Synthase, Inducible mouse, recombinant, expressed in Escherichia coli, Buffered aqueous solution N2783
  Acting on paired donor oxygenases  
1.14.14.3 Luciferase from Vibrio fischeri (Photobacterium f), Lyophilized powder L8507
1.14.18.1 Tyrosinase mushroom, ³2,000 units/mg solid T7755
  Acting on superoxide radicals  
1.15.1.1 Superoxide Dismutase from Spirulina platensis, minimum 10% (remainder potassium phosphate), Lyophilized powder, minimum 500 units/mg protein S3813
1.15.1.1 Superoxide Dismutase bovine erythrocytes, cell culture tested, Lyophilized powder, 2,500-7,000 units/mg protein S5395
1.15.1.1 Superoxide Dismutase from horseradish, Lyophilized powder, 1,000-4,000 units/mg protein S4636
1.15.1.1 Superoxide Dismutase from Escherichia coli, Lyophilized powder, 2,500-5,000 units/mg protein S5639
1.15.1.1 Superoxide Dismutase from Escherichia coli, Lyophilized powder, minimum 2,500 units/mg protein S5389
1.15.1.1 Superoxide Dismutase canine erythrocytes, Lyophilized powder, 2,000-6,000 units/mg protein S9511
1.15.1.1 Superoxide Dismutase bovine liver, Ammonium sulfate suspension, approx. 3,000 units/mg protein (Biuret) S7008
1.15.1.1 Superoxide Dismutase bovine erythrocytes, Lyophilized powder, 2,500-7,000 units/mg protein S2515
1.15.1.1 Superoxide Dismutase bovine liver, Lyophilized powder, 2,000-6,000 units/mg protein S8160
1.15.1.1 Superoxide Dismutase from human erythrocytes, Lyophilized powder, 3,000-6,000 units/mg protein S9636
  Acting on ferredoxin  
1.18.1.2 Ferredoxin-NADP+ Reductase from Spinacia oleracea (spinach), Lyophilized powder, 2-6 units/mg solid, Secondary activity: approx. 15 NADPH diaphorase F0628
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