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576 results for Enzymes

 

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.

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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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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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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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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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Trichoderma reesei cellulase

Supplier: Abnova

Trichoderma reesei cellulase

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Yeast aldehyde dehydrogenase, MP Biomedicals

Supplier: MP Biomedicals

Yeast aldehyde dehydrogenase

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Recombinant Tobacco Etch Virus (from E. coli)

Supplier: Abnova

Recombinant Tobacco Etch Virus (from E. coli)

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Synthetic Yeast Inorganic Pyrophosphatase (from E. coli)

Supplier: Abnova

Synthetic Yeast Inorganic Pyrophosphatase (from E. coli)

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Catalase, MP Biomedicals

Supplier: MP Biomedicals

Dissolves readily at 5 mg/ml in 0,05 M sodium/potassium phosphate pH 7,0 giving a clear green solution.

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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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Tritirachium album proteinase K, MP Biomedicals

Supplier: MP Biomedicals

Suitable for both protein and nucleic acid isolation. Exhibits proteolytic activity on proteins, peptides, glycoproteins, amides and esters. Also active with nitroanilides of amino acids with protected amino groups, excluding arginine. Useful in the isolation of DNA and RNA, in the analysis of membrane structures and protein structure. Proteolytic activity: >30mAnson Units/mg Unit definition: One Anson unit is the amount of enzyme which liberates 1 µmol of Folin-positive amino acids per minute at pH 7,5 and 35 °C, using hemoglobin as substrate.

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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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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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Diaphorase (from Clostridium kluyveri), MP Biomedicals

Supplier: MP Biomedicals

Diaphorase (from Clostridium kluyveri)

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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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Synthetic Yeast Inorganic Pyrophosphatase (from E. coli)

Supplier: Abnova

Synthetic Yeast Inorganic Pyrophosphatase (from E. coli)

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Aspergillus niger Type X glucose oxidase, MP Biomedicals

Supplier: MP Biomedicals

Aspergillus niger Type X glucose oxidase

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Malate dehrdrogenase, MP Biomedicals

Supplier: MP Biomedicals

Soluble in distilled water or dilute buffer; dissolves readily at 5 mg/ml in 0,1 M potassium phosphate pH 7,4.

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Bovine deoxyribonuclease I (from Pancreas), MP Biomedicals

Supplier: MP Biomedicals

Deoxyribonuclease from beef pancreas, DNase I, was first crystallized by Kunitz. It is an endonuclease which splits phosphodiester linkages, preferentially adjacent to a pyrimidine nucleotide yielding 5'-phosphate terminated polynucleotides with a free hydroxyl group on position 3'. The average chain of limit digest is a tetranucleotide. DNase I acts upon single chain DNA, and upon double-stranded DNA and chromatin.

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Bovine alpha-Chymotripsin (from Pancreas), MP Biomedicals

Supplier: MP Biomedicals

Preparation Method
Produced from 3× crystallised chymotrypsinogen

α-Chymotrypsin is used for treating pancreatic insufficiency and in traumatology.

Chymotrypsin preferentially catalyses the hydrolysis of peptide bonds involving L-isomers of tyrosine, phenylalanine, and tryptophan. It also readily acts upon amides and esters of susceptible amino acids. In addition to bonds involving aromatic amino acids, chymotrypsin catalyses at a high rate the hydrolysis of bonds of leucyl, methionyl, asparaginyl, and glutamyl residues. a-Chymotrypsin is a protein consisting of 241 amino acid residues. The molecule has three peptide chains: an A chain of 13 residues, a B chain of 131 residues, and a C chain of 97 residues.

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Fig tree Ficin, MP Biomedicals

Supplier: MP Biomedicals

Fig tree Ficin

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Papain

Papain

Supplier: Thermo Fisher Scientific

CAS No.: 9001-73-4

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

Supplier: Abnova

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

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Myrothecium sp. Bilirubin oxidase, MP Biomedicals

Supplier: MP Biomedicals

Myrothecium sp. Bilirubin oxidase

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Pepsin

Supplier: Thermo Fisher Scientific

Contains either Lactose or Maltodextrin excipient

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