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Documentos Principais

D7876

Sigma-Aldrich

Diamine Oxidase from porcine kidney

≥0.05 unit/mg solid

Sinônimo(s):

Amine:oxygen oxidoreductase (deaminating) (pyridoxal-containing)

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About This Item

Número CAS:
Número da licença da enzima:
Número CE:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54

fonte biológica

Porcine kidney

Nível de qualidade

Formulário

solid

atividade específica

≥0.05 unit/mg solid

peso molecular

170 kDa

solubilidade

100 mM sodium phosphate buffer, pH 7.2: soluble 10 mg/mL

atividade externa

monoamine oxidase (benzylamine substrate) ≤1%

temperatura de armazenamento

−20°C

Descrição geral

Diamine oxidase from porcine kidney is a homodimer consisting of two equal subunits with a molecular weight of 87 kDa each. Each subunit contains one molecule of pyridoxal phosphate and one atom of copper. The molecular mass of the enzyme is found to be 170 kDa. The enzyme is a glycoprotein containing 5% hexose, 3.3% glucosamine, 2.6% N-acetylglucosamine, and 0.25% N-acetylneuraminic acid. The enzyme exhibits a high affinity for concanavalin A. Optimum pH with cadverine and histamine as substrates is found to be 6.3-7.4.

Aplicação

Diamine Oxidase from porcine kidney has been used in the construction of histamine biosensor.
Diamine oxidase from porcine kidney has been used in a study to investigate a luminescence-based test for determining ornithine decarboxylase activity. Diamine oxidase from porcine kidney has also been used in a study to investigate N-linked oligosaccharide structures in diamine oxidase.

Ações bioquímicas/fisiológicas

Diamine Oxidase catalyzes the oxidation of monoamines, diamines, and histamine to aldehydes, ammonia, and hydrogen peroxide. The enzyme is classified as a copper amine oxidase and it is a key enzyme in nitrogen metabolism. Diamine oxidase is inhibited by diethyldithiocarbamate, phenylhydrazine, semicarbazide, cyanide, isonicotinic acid hydrazide.

Definição da unidade

One unit will oxidize 1.0 μmole of putrescine per hr at pH 7.2 at 37 °C.

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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A PRELIMINARY INVESTIGATION ON A HISTAMINE BIOSENSOR CONSTRUCTED FROM DIAMINE OXIDASE IMMOBILISED ONTO AN OXYGEN PROBE
The Enzymes (1970)
HISTAMINE BIOSENSOR: A REVIEW
NorazlinaOthman F, et al.
The Malaysian Journal of Analytical Sciences (2006)
Y Wang et al.
Analytical biochemistry, 287(2), 299-302 (2000-12-09)
A sensitive chemiluminescence-based method for the assay of ornithine decarboxylase (ODC) has been developed. This method, which permits the detection of putrescine (the product of ODC) at a picomolar range, can be used to determine ODC activity in cellular extracts.
Diamine oxidase and catalase are expressed in the same cells but are present in different subcellular compartments in porcine kidney.
H G Schwelberger et al.
Inflammation research : official journal of the European Histamine Research Society ... [et al.], 48 Suppl 1, S81-S82 (1999-06-01)
A Rinaldi et al.
Preparative biochemistry, 12(1), 11-28 (1982-01-01)
Several methods for the isolation of apparently homogeneous pig kidney diamine oxidase have been reported in recent years (1-7), but these procedures allow to obtain only little amounts of material making very difficult the study of the molecular properties of

Protocolos

Enzymatic Assay of Diamine Oxidase (E.C. No. 1.4.3.22)

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