Order Entry
Czech Republic
ContactUsLinkComponent
669 výsledky pro Enzymy

Hledali jste: Enzymy

Enzymy

Enzymes accelerate, or catalyse, chemical reactions, and they are known to catalyse 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.

Seřadit podle

Cucumis sp. ascorbate oxidase, MP Biomedicals

Supplier: MP Biomedicals

Ascorbate Oxidase is an enzyme belonging to the family of oxidoreductases that catalyses the reaction: Ascorbic acid +¹/₂ O₂ ascorbate oxidase → Dehydroascorbic acid +H₂O.

Expand 1 Items
Načítání...

Alcaligenes sp. Choline Oxidase, MP Biomedicals

Supplier: MP Biomedicals

Activity: 10 units/mg solid or more (containing approx. 20% of stabilisers). Unit definition: One unit causes the formation of one micromole of hydrogen peroxide per minute at pH 8,0 at 37 °C. Ref.: P.J.G. Mann and J.H. Quastel, Biochem. J., 31: 869 (1937)

Expand 4 Items
Načítání...

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

Supplier: Abnova

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

Expand 1 Items
Načítání...

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

Supplier: Abnova

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

Expand 1 Items
Načítání...

Synthetic Yeast Inorganic Pyrophosphatase (from E. coli)

Supplier: Abnova

Synthetic Yeast Inorganic Pyrophosphatase (from E. coli)

Expand 1 Items
Načítání...

Alcohol dehydrogenase, MP Biomedicals

Supplier: MP Biomedicals

Dissolves readily at 5 mg/ml in 0,01 M Sodium Phosphate pH 7,5 to give a clear colourless solution.

Expand 3 Items
Načítání...

Pepsin

Supplier: Thermo Fisher Scientific

Contains either Lactose or Maltodextrin excipient

Expand 4 Items
Načítání...
Papain

Papain

Supplier: Thermo Fisher Scientific

CAS No.: 9001-73-4

Expand 3 Items
Načítání...

Clostridium histolyticum Collagenase type IV (from Clostridium histolyticum), MP Biomedicals

Supplier: MP Biomedicals

Activators: Ca²⁺ is required. Inhibitors: Metal chelating agents such as cysteine, EDTA or o-phenanthroline but not DFP. It is also inhibited by a2-macroglobulin - a large plasma glycoprotein. The human skin enzyme is inhibited by human serum but granulocyte collagenase is not. Human serum contains a2-macroglobulin and a1-antitrypsin that may inhibit certain collagenases.

Expand 3 Items
Načítání...

Sorbitol dehydrogenase, MP Biomedicals

Supplier: MP Biomedicals

Sorbitol dehydrogenase has been used in a study to investigate osmotic stress induced oxidative damage as a possible mechanism of cataract formation in diabetes.

Expand 1 Items
Načítání...

Aldolase, MP Biomedicals

Supplier: MP Biomedicals

Aldolase is a tetrameric protein. It catalyses a key reaction in glycolysis and energy production:D-Fructose 1,6-bisphosphate aldolase → dihydroxyacetone phosphate + D-glyceraldehyde-3-phosphate. Aldolase is present in all animal tissue and in most microorganisms. There are two classes of aldolases. Class I aldolase is found in animal and higher plant tissue. Class II aldolase is found in primitrive cells such as yeasts and bacteria. Class I aldolase is characterised by not requiring a bivalent metal cofactor and the formation of a ketimine Schiff base intermediate with the substrate dihydroxyacetone phosphate. Class II aldolase requires a metal cofactor and is inhibited by EDTA. Three types of aldolase exist in animal tissue. The major form, type A is found in muscle; type B is found in liver tissue and type C (plus some type A) is found in brain tissue. Aldolase forms five isozymes which may to various degrees be organ specific.

Expand 1 Items
Načítání...
Thrombin

Thrombin

Supplier: Cytiva

Thrombin is a protease used to digest fusion proteins prepared from pGEX vectors containing the recognition sequence for thrombin (pGEX-1lT, pGEX-2T, pGEX-2TK, pGEX-4T-1, pGEX-4T-2, and pGEX-4T-3).

Expand 1 Items
Načítání...

alpha-Amylase, MP Biomedicals

Supplier: MP Biomedicals

One bacterial amylase unit is defined as that quantity of enzyme which will dextrinise one milligram of starch per minute at pH 6,6 and 30 °C.

Expand 3 Items
Načítání...

Cellulase (from Aspergillus niger), MP Biomedicals

Supplier: MP Biomedicals

Cellulase refers to a group of enzymes which, acting together, hydrolyse cellulose. The b-glucosidases, including cellobiose, are primarily active on the smaller molecular weight cellulose hydrolysates. During cellulose breakdown they are active on the dimers and oligomers of cellulose.

Expand 3 Items
Načítání...

Neuraminidase, MP Biomedicals

Supplier: MP Biomedicals

Neuraminidase (Sialidase: Acylneuraminyl hydrolase; EC 3.2.1.18) From Arthrobacter ureafaciens lyophilised powder with salts. The salts are composed of sodium-potassium phosphate to give a solution of 10 mM phosphate buffer (pH 7) when enzyme is reconstituted with water to make activity of 1 unit per ml. Activity: >60 units/mg protein for NAN-lactose >25 units/mg protein for bovine submaxillary mucin >20 units/mg protein for colominic acid Protein is determined by the method of Lowry et al. with bovine albumin as a standard.6 Unit definition: One unit will liberate 1,0 µmole of N-acetyl-neuraminic acid (NANA) per minute at pH 5,0 at 37 °C, using either one NAN-lactose, bovine submaxillary mucin, or colominic acid as a substrate.

Expand 2 Items
Načítání...

Human catalase (from Erythrocytes), MP Biomedicals

Supplier: MP Biomedicals

Catalase activates the decomposition of hydrogen peroxide, a reactive oxygen species, into water and oxygen.

Expand 3 Items
Načítání...

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.

Expand 1 Items
Načítání...

Crotalus adamanteus Phosphodiesterase I, MP Biomedicals

Supplier: MP Biomedicals

Lyophilised in vials containing approximately 5 mg dry wt. and at least 100 units/vial (20 to 40 units/mg dry wt.).

Expand 1 Items
Načítání...

Recombinant Alkaline Phosphatase (from E. coli)

Supplier: Abnova

Recombinant Alkaline Phosphatase (from E. coli)

Expand 1 Items
Načítání...

Pepsin

Supplier: Spectrum Chemical

Commonly used in biochemistry.

Expand 2 Items
Načítání...

Macerozyme, MP Biomedicals

Supplier: MP Biomedicals

The amount of macerating activity on potato tuber disks as determined by weight loss at 40 °C, pH 5,0.

Expand 1 Items
Načítání...

Bovine carbonic anhydrase (from Erythrocytes), MP Biomedicals

Supplier: MP Biomedicals

Soluble in distilled water or dilute buffer.

Expand 2 Items
Načítání...

Collagenase, MP Biomedicals

Supplier: MP Biomedicals

Collagenase can be solubilised in calcium-free solutions such as Hank's Balanced Salts or Earles Balanced Salt Solution.

Expand 1 Items
Načítání...

Collagenase, MP Biomedicals

Supplier: MP Biomedicals

For typical assay, dissolve enzyme at a concentration of 1 mg/ml in 0,05 M TES with 0,36 mM calcium chloride, pH 7,5. Dilutions run are 1/10 and 1/20 in the above buffer.

Expand 1 Items
Načítání...

Bacillus cereus beta-Lactamase, MP Biomedicals

Supplier: MP Biomedicals

Activity: Each vial contains 500 units β-Lactamase I and 50 units β-Lactamase II Unit Definition: One unit is defined as the amount of enzyme which will hydrolyse 1,0 micromole of benzyl penicillin and 1,0 micromole of cephalosporin C per minute at 25 °C in the presence of EDTA pH 7,0.

Expand 1 Items
Načítání...

Pyruvate kinase, MP Biomedicals

Supplier: MP Biomedicals

Dissolves readily at 5 mg/ml in 0,06 M Tris/HCI pH 7,4 to give a clear colorless solution.

Expand 4 Items
Načítání...
Pig trypsin (from pancreas), MP Biomedicals

Pig trypsin (from pancreas), MP Biomedicals

Supplier: MP Biomedicals

Trypsin-EDTA solution is widely used for cell dissociation, routine cell culture passaging, and primary tissue dissociation due to its digestive strength.

Expand 1 Items
Načítání...

Streptococcus (Lancefield group C strain) streptokinase, MP Biomedicals

Supplier: MP Biomedicals

Streptokinase catalyzes hydrolysis of amide linkages. Forms a 1:1 complex with plasminogen which is then converted to streptokinase-plasmin. Both streptokinase-plasminogen and streptokinase-plasmin complexes can activate plasminogen. As a result of its interaction with human or rabbit plasminogen, streptokinase undergoes specific fragmentation.

Expand 2 Items
Načítání...

Neuraminidase (from Bacteria), MP Biomedicals

Supplier: MP Biomedicals

Neuraminidase of non-pathogenic streptococci, is prepared from the culture filtrate by Ammonium Sulfate precipitation and Ion-exchange chromatography.

Expand 1 Items
Načítání...

Wheat germ acid phosphatase, MP Biomedicals

Supplier: MP Biomedicals

Acid phosphatase (APase) non-specifically catalyses the hydrolysis of monoesters and anhydrides of phosphoric acid to produce inorganic phosphate. It is used to study the production, transport, and recycling of phosphate and the metabolic and energy transduction processes of the cell.

Expand 3 Items
Načítání...
Seřadit podle
Recommended for You