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Documenti fondamentali

D7876

Sigma-Aldrich

Diamine Oxidase from porcine kidney

≥0.05 unit/mg solid

Sinonimo/i:

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

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero CE:
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

Porcine kidney

Livello qualitativo

Stato

solid

Attività specifica

≥0.05 unit/mg solid

PM

170 kDa

Solubilità

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

Attività estranea

monoamine oxidase (benzylamine substrate) ≤1%

Temperatura di conservazione

−20°C

Descrizione generale

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.

Applicazioni

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.

Azioni biochim/fisiol

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.

Definizione di unità

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

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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

Protocolli

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

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