Proteins & Enzymes

123 Results Found

Protease Inhibitor Cocktail Kit

Protease Inhibitor Cocktail Kit

Lactalbumin Hydrolysate Enzymatic

Lactalbumin Hydrolysate Enzymatic

Actin, Purified From Rabbit


From Rabbit Muscle
This is a 43 kDa purified protein for use as a high molecular weight marker or as a standard. In addition, it may be used as an antigen for antibody development.

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Albumin, Bovine,Purified

Product is the lyophilized powder of bovine albumin

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Human Albumin, Fraction V (Protease Free)

Albumins are a group of simple proteins found in the body fluids and tissues of animals, and in some plant seeds. It is a single polypeptide chain with one free sulfhydryl group (Cys34) and 17 intrachain disulfide bonds.

Albumin, Bovine Path 4 35% Sol

35% Albumin Solution
It can be used as a medium in density gradient centrifugation or as an addition to tissue culture growth medium.
Stable for at least 2 years at 5°C.
Sterile.

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Albumin,Bovine,30% Solution

Albumin bovine is a single polypeptide chain consisting of about 583 amino acid residues and no carbohydrates. At pH 5-7 it contains 17 intrachain disulfide bridges and 1 sulfhydryl group.

Bovine Albumin 30% Solution Polymer Enhanced

30% Polymer Enhanced Solution
Prepared from high quality Fraction V Powder intended for in vitro diagnostic use in immunohematological procedures requiring high protein diluent. It can be used for serological procedures, and it potentiates the expression of weak antigen-antibody reactions and avidity of red blood cells.

Thrombin,Bovine

Thrombin is the final coagulation protease in regard to hemostasis, promoting both procoagulant and anticoagulant effects.

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Cellulase Y-C (From Trichoderma Viride)

Cellulase Y-C enzyme retains very high filter paper decomposing activity and showed an appreciable amount of hemicellulase. Actually, this enzyme removed cell walls from plant tissues in shorter incubation period without loss of biological activity of the materials.

Proline Specific Endopeptidase (From Flavobacterium Meningosepticum)

Proline Specific Endopeptidase specifically cleaves peptide bonds on the carboxy side of proline residues. Much slower hydrolysis is observed on the carboxy side of alanine residues. This enzyme is very close, in its properties, to a post-proline cleaving enzyme. The substrates have been found to have the general structure Y-Pro-X, where Y is a peptide or N-protected amino acid and X may be an amino acid, peptide, amide or ester.

Alpha-Fetoprotein (Afp) Antigen

From Human Cord Serum
Iodination Grade
Purity: >97%

This antigen is ideal for labeling or immunization purposes. The antigen is in 0.1M Sodium Phosphate buffer, 0.2M NaCl, pH 7.4, with 0.05% sodium azide as preservative.

Streptavidin-Fitc

This is a purified product supplied in 0.05% sodium azide. The typical working dilution is 1:50-1:150.

Horseradish Peroxidase-Conjugated Avidin

Product is a 2 ml solution containing 5 mg horseradish peroxidase(HRP)-conjugated egg white avidin.

Fluorescein-Conjugated Human Albumin

Product is the lyophilized powder of fluorescein-5-isothiocyanate (FITC "Isomer I")-conjugated human albumin and buffer salts.

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Human Albumin Fraction V

This human protein is prepared by a modification of the Cohn procedure. Albumin may be used to eliminate background interference in ELISA's or other enzyme assay systems. It is also used in absorption, distribution, metabolism, and excretion (ADME) pharmacological research; cell culture; drug delivery research; and cryopreservation of cells. Human and bovine albumins contain 16% nitrogen and are often used as standards in protein calibration studies. Due to their free hydrophobic region fatty acid free albumins are used to solubilize lipids in tissue culture, and are also used as blocking agents in Western blots or ELISA applications. Globulin free albumins are suitable for use in applications where no other proteins should be present (e.g., electrophoresis). Serum albumin functions as a carrier protein for steroids, fatty acids, and thyroid hormones, and is vital in regulating the colloidal osmotic pressures of blood. Albumin is also seen to bind to exogenous substances, particularly drugs (e.g., ibuprofen, warfarin), and strongly influence their pharmacokinetics. Oxidative stress leading to changes in the redox state of albumin has widely varied effects on its physiological function.

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Human Albumin, Fraction V Fatty Acid Free

Albumin may be used to eliminate background interference in ELISA's or other enzyme assay systems. It is also used in absorption, distribution, metabolism, and excretion (ADME) pharmacological research; cell culture; drug delivery research; and cryopreservation of cells. This protein is prepared by a modification of the Chen low pH charcoal method. Contains < 0.1 mg/g fatty acids. The venous blood from which this product is manufactured has been tested for the presence of Hepatitis B Surface Antigen (HBsAg) and found to be non-reactive by a currently approved FDA test. The blood has also been tested for the presence of Anti-HCV, Anti-HIV-1 and Anti-HIV-2, antibodies and found to be negative. The source donors have been tested in accordance with 21 CFR 640. This blood is non-reactive for syphilis.