Horseradish Peroxidase (Rz >3.0)
Horseradish peroxidase (HRP) is isolated from horseradish roots and belongs to the ferroprotoporphyrin group of peroxidases. HRP is a single chain polypeptide containing four disulfide bridges. It is a glycoprotein containing 18% carbohydrate. The carbohydrate composition consists of galactose, arabinose, xylose, fucose, mannose, mannosamine, and galactosamine depending upon the specific isozyme.
Tryptase (Purified Antigen)
Tryptase is a glycoprotein released from mast cells during anaphylaxis, which performs a number of functions including catalyzing the activation of complement C3, converting prostromelysin to stromelysin (MMP-3), and cleaving fibrinogen resulting in a loss of clotting potential. Human tryptase is a major secretory protease of human lung mast cells.
(1,4-β-Xylan xylohydrolase, EC 126.96.36.199)
From Trichoderma viride
Activity: 5 U/vial
Unit Definition: One unit is defined as the amount of enzyme required to liberate 1 μmole of p-nitrophenol from p-nitrophenyl-α-D-xylopyranoside per minute at 37°C, pH 4.0.