CAS:9001-53-0
Appearance:Solid
Storage:Store at -20℃
Product Introduction
Porcine kidney derived diamine oxidase is a homodimer composed of two identical subunits with a molecular weight of 87kDa, each containing a pyridoxal phosphate molecule and a copper atom. The molecular weight of the enzyme is 170kDa. The enzyme is a glycoprotein containing 5% hexose, 3.3% glucosamine, 2.6% n-acetylglucosamine, and 0.25% n-acetylneuraminic acid. The enzyme has A high affinity for canavalin A. The optimum pH for cadaverine and histamine as substrates is 6.3-7.4.
Application
Diamine oxidase from pig kidneys has been used to investigate luminescent based tests for the determination of ornithine decarboxylase activity. Diamine oxidase from pig kidney was also used to study the n-linked oligosaccharide structure in diamine oxidase.
Diamine oxidase derived from pig kidney has been used to prepare histamine biosensors.
Precautions
Diamine oxidase catalyzes the oxidation of monoamine, diamine and histamine to aldehydes, ammonia and hydrogen peroxide. This enzyme belongs to the copper containing amine oxidase, which is a key enzyme in nitrogen metabolism. Diamine oxidase is inhibited by diethyldithiocarbamate, phenylhydrazine, semicarbazone, cyanide and isonicotinate hydrazine.
International System Classification Number: EC: 1.4.3.22
Unit definition: At pH 7.2 and 37 ℃, 1 unit per hour will oxidize 1.0 μmol putrescine