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Enzymes

Enzymes accelerate, or catalyze, chemical reactions, and they are known to catalyze more than 5,000 biochemical reaction types. Most enzymes are proteins, although a few are catalytic RNA molecules. Choose specific enzymes for cleaving bonds, removing genomic DNA from RNA preparations, for producing fragments of proteins, or for use in ion exchange chromatography. Enzymes are used in the chemical industry and other industrial applications when extremely specific catalysts are required.

Benzonase®

Supplier: MERCK PRODUCTION CHEMICALS

Benzonase® is a highly active nuclease that degrades DNA and RNA to short oligonucleotides. It is used for the elimination of interfering DNA/RNA, for example at protein isolation, or before electrophoresis or chromatography.

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Chicken lysozyme (from egg white), MP Biomedicals

Supplier: MP Biomedicals

Lysozyme (muramidase) hydrolyses preferentially the β-1,4 glucosidic linkages between N-acetylmuramic acid and N-acetylglucosamine which occur in the mucopeptide cell wall structure of certain microorganisms, such as Micrococcus lysodeikticus.

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Papain, MP Biomedicals

Supplier: MP Biomedicals

Activators: Papain is activated by cysteine, sulphide, sulphite and more. It is enhanced when heavy metal binding agents such as EDTA are also present. N-bromosuccinimide enhances the activity. Inhibitors: Substances which react with sulphydryl groups including heavy metals, carbonyl reagents. Aldehydes are papain inhibitors. Benzoylamidoacetonitrile is an inhibitor. See Shapira and Arnon (1967a and b) on antibody inhibitors. Papain may be inactivated by H₂O₂ generated by γ-irradiation of H₂O the active SH group being oxidised to sulphenic acid. Specific inhibitors are AEBSF, antipain, cystatin, E-64, leupeptin, PMSF, TLCK and TPCK.

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Staphylococcus aureus Staphylokinase

Supplier: Abnova

Staphylococcus aureus Staphylokinase

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Recombinant mRNA Cap 2'-O-methyltransferase (from E. coli)

Supplier: Abnova

Recombinant mRNA Cap 2'-O-methyltransferase (from E. coli)

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Perfringolysin O, Recombinant, Clostridium Perfringens, aa29-500, His-Tag (PFO)

Supplier: US Biological

Perfringolysin O, Recombinant, Clostridium Perfringens, aa29-500, His-Tag (PFO)

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Amylase, MP Biomedicals

Supplier: MP Biomedicals

The number of grams of soluble starch dextrinized in the presence of excess B-amylase per hour at 40 °C, pH 5,0.

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L-Glutamic dehydrogenase, MP Biomedicals

Supplier: MP Biomedicals

For Continuous Spectrophotometric Rate determination method: 0,3 to 0,6 unit/ml of L-Glutamic dehydrogenase in cold Triethanolamine buffer.

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Protocatechuate-3,4-dioxygenase, MP Biomedicals

Supplier: MP Biomedicals

Inhibitors : Ag⁺, Hg²⁺, PCMB; Optimum temperature: 60 to 65 °C; Thermal stability: below 50 °C (pH 6,0; 1 h).

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alpha-Chymotrypsin, MP Biomedicals

Supplier: MP Biomedicals

One unit will hydrolyse 1,0 µmole of N-benzoyl-L-tyrosine ethyl ester (BTEE) per minute at pH 7,8 and 25 °C in the presence of ionised calcium.

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Lipase, MP Biomedicals

Supplier: MP Biomedicals

One USP unit of lipase activity is contained in the amount of pancreatin that liberates 1,0 µEq of acid per minute at a pH of 9,0 at 37 °C under the conditions of the assay for lipase activity.

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Microbe creatinine deiminase, MP Biomedicals

Supplier: MP Biomedicals

Creatinine deiminase has been used in a study to assess the application of a creatinine-sensitive biosensor for hemodialysis control. It has also been used in a study to investigate the bioelectronic tongue for the simultaneous determination of urea, creatinine and alkaline ions in clinical samples.

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Sheep Hyaluronidase (from Testes), MP Biomedicals

Supplier: MP Biomedicals

Hyaluronidase is a glycoprotein containing 5% mannose and 2,17% glucosamine, it catalyzes the random hydrolysis of 1,4-linkages between 2-acetamido- 2-deoxy- b-D-glucose and D-glucose residues in hyaluronate. It is a tetramer consisting of 4 equal subunits with a molecular mass of 14 kDa each.

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Streptococcus sp. glycerol-3-phosphate oxidase, MP Biomedicals

Supplier: MP Biomedicals

Glycerol-3-phosphate oxidase has been used for sensitive metabolite assays of starch and lipid synthesis, pyrophosphate, ATP, ADP, and most glycolytic intermediates in Arabidopsis seeds. It is a part of the dihydroxyacetone phosphate:glycerol-3-phosphate cycle in the bloodstream form of Trypanosoma brucei.

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Bovine hyaluronidase (from Testes), MP Biomedicals

Bovine hyaluronidase (from Testes), MP Biomedicals

Supplier: MP Biomedicals

Hyaluronidase is a glycoprotein containing 5% mannose and 2,17% glucosamine, it catalyses the random hydrolysis of 1,4-linkages between 2-acetamido- 2-deoxy- b-D-glucose and D-glucose residues in hyaluronate. Hyaluronidase from bovine testes is a tetramer consisting of 4 equal subunits with a molecular mass of 14 kDa each.

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Peroxidase, MP Biomedicals

Supplier: MP Biomedicals

Soluble in distilled water. Soluble in 0,1 M potassium phosphate buffer, pH 6,0 (monobasic potassium phosphate adjusted to pH 6,0 with 1,0 M potassium hydroxide) (10 mg/ml yields a clear, red-brown solution). Solutions of HRP can be kept refrigerated for up to a year while maintaining practically undiminished activity. Optimal pH is 6,0 to 6,5 (activity at pH 7,5 is 84% of the maximum). The enzyme is most stable in the pH range of 5,0 to 9,0 (Lit.).

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Protease

Supplier: Abnova

Protease

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Benzonase®

Supplier: MERCK PRODUCTION CHEMICALS

Benzonase®

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Tritirachium album proteinase K, MP Biomedicals

Supplier: MP Biomedicals

Proteinase K is a highly active stable endopeptidase with a broad spectrum of action was isolated by E. Merk's Darmstadt Biochemical Research Department in 1970 from a culture filtrate of the fungus, Tritirachium album Limber. This fungus is able to grow on Keratin (e.g., wool, horn particles) as the sole source of carbon and nitrogen. The isolated protease was, therefore, given the K designation.
Proteinase K is a stable and highly reactive serine protease. Evidence from crystal and molecular structure studies indicates the enzyme belongs to the subtilisin family with an active-site catalytic triad (Asp39-His69-Ser224). It is stable in a broad range of environments: pH, buffer salts, detergents (SDS), and temperature. In the presence of 0,1 to 0,5% SDS, proteinase K retains activity and will digest a variety of proteins and nucleases in DNA preparations without compromising the integrity of the isolated DNA.

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Glutathione S-Transferase

Supplier: Abnova

Glutathione S-Transferase

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Invertase

Supplier: MERCK PRODUCTION CHEMICALS

Humectants for confectionery

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Recombinant Poly(A) Polymerase (from E. coli)

Supplier: Abnova

Recombinant Poly(A) Polymerase (from E. coli)

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Recombinant Alkaline Phosphatase (from E. coli)

Supplier: Abnova

Recombinant Alkaline Phosphatase (from E. coli)

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Pig Trypsin (from Pancreas), MP Biomedicals

Supplier: MP Biomedicals

Pig Trypsin (from Pancreas)

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Pig Pepsin (from Gastric mucosa), MP Biomedicals

Supplier: MP Biomedicals

Stable powder 3X

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Bovine Ribonuclease A (from Pancreas), MP Biomedicals

Supplier: MP Biomedicals

Dissolves readily at 2 mg/ml in analytical grade water to give a clear colorless solution.

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Malt diastase, MP Biomedicals

Supplier: MP Biomedicals

DIASTASE from malt, 1X N.F. stable, 60 mesh powder. Ready for CE IVD labeling of clinical applications.

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Trichoderma viride cellulase Y-C, MP Biomedicals

Supplier: MP Biomedicals

Cellulase Y-C removes cell walls from plant tissues in shorter incubation period without loss of biological activity of the materials.

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Staphylococcus aureus (Strain V8) protease, MP Biomedicals

Supplier: MP Biomedicals

Protease isolated from S. aureus, strain V8, this protease exhibits cleavage of peptide bonds on the COOH-terminal side of either aspartate or glutamate residues.

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Calf alkaline phosphatase (from intestine), MP Biomedicals

Supplier: MP Biomedicals

Alkaline phosphatase is a phosphomonoesterase, used to remove 5′-phosphate groups from nucleic acid molecules to prevent self-ligation of DNA fragments and vectors during recombinant DNA manipulations.

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