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M9004

Sigma-Aldrich

Malic Dehydrogenase from bovine heart

ammonium sulfate suspension, 2000-4000 units/mg protein (modified Warburg-Christian)

Sinonimo/i:

L-Malate:NAD+ oxidoreductase, MDH

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About This Item

Classificazione EC (Enzyme Commission):
1.1.1.37 (BRENDA, IUBMB)
Numero CE:
232-622-5
Numero MDL:
MFCD00131567
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

bovine heart

Livello qualitativo

200

Forma fisica

ammonium sulfate suspension

Attività specifica

2000-4000 units/mg protein (modified Warburg-Christian)

PM

35 kDa

Impurezze

≤0.01% Glutamic-Oxalacetic Transaminase
≤0.01% Glutamic-Pyruvic Transaminase

Temperatura di conservazione

2-8°C

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Descrizione generale

Malic Dehydrogenase from bovine heart contains a histidine residue at the NAD-binding active site which is critical for activity. When this histidine is mutated a loss in activity is observed.
Malic dehydrogenase is a cytoplasmic isozyme and an important catalyst in the tricarboxylic acid cycle.

Applicazioni

Malic dehydrogenase has been used in a study to assess a flow injection system for on-line monitoring of fumaric acid in biological processes. It has also been used in a study to investigate a root-knot nematode parasitizing peanut in Texas.

Definizione di unità

One unit will convert 1.0 μmole of oxalacetate and β-NADH to L-malate and β-NAD per min at pH 7.5 at 25 °C.

Stato fisico

Suspension in 3 M (NH4)2SO4 - 0.01 M KH2PO4 solution, pH 7.3

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)

Certificati d'analisi (COA)

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Enika Nagababu et al.
Methods in molecular biology (Clifton, N.J.), 610, 165-180 (2009-12-17)
Reactive oxygen species are implicated in many human diseases and aging process. Much of the evidence is based on experimental data indicating increasing rates of lipid peroxidation in disease states and the ameliorating effects of antioxidants. It is becoming increasingly
E M Gregory
The Journal of biological chemistry, 250(14), 5470-5474 (1975-07-25)
Bovine mitochondrial malate dehydrogenase (EC 1.1.1.37) was inactivated by the specific modifications of a single histidine residue upon reaction with iodoacetamide. NADH protected against this loss of activity and reaction with the histidine residue, suggesting that the histidine is at
Eisaku Hokazono et al.
Clinica chimica acta; international journal of clinical chemistry, 412(15-16), 1436-1440 (2011-05-10)
In human serum, as for phospholipids not containing choline, phosphatidylethanolamine (PE) exists approximately 5% in a whole phospholipid. PE is well known as one of the main components of biological membranes, and also plays important roles that contribute to apoptosis
Flow injection system for on-line monitoring of fumaric acid in biological processes
Rhee, J.
Analytica Chimica Acta, 499, 71-80 (2003)
Isoelectric points and molecular weights of proteins: a new table.
Righetti, P.G., and Tudor, G.
Journal of Chromatography A, 220, 115-194 (1981)
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Articoli

How to Work with Enzymes Supplied as Ammonium Sulfate Suspensions

Instructions for working with enzymes supplied as ammonium sulfate suspensions

Protocolli

Enzymatic Assay of Malic Dehydrogenase (EC 1.1.1.37)

Enzymatic Assay of Malic Dehydrogenase (EC 1.1.1.37)

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