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Merck

M9004

Sigma-Aldrich

苹果酸脱氢酶 来源于牛心脏

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

别名:

L -苹果酸盐:NAD + 氧化还原酶, MDH

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About This Item

EC號碼:
MDL號碼:
分類程式碼代碼:
12352204
NACRES:
NA.54

生物源

bovine heart

品質等級

形狀

ammonium sulfate suspension

比活性

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

分子量

35 kDa

雜質

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

儲存溫度

2-8°C

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一般說明

牛心脏的苹果酸脱氢酶在 NAD 结合活性位点包含一个组氨酸残基,该残基对活性至关重要。当该组氨酸突变时,观察到活性丧失。
苹果酸脱氢酶是一种细胞质同工酶,是三羧酸循环中的重要催化剂。

應用

苹果酸脱氢酶已用于评估流动注射系统的研究,用于在线监测生物过程中的富马酸。 它也曾被用于一项研究,调查一种寄生在德州花生上的根结线虫。

單位定義

在pH7.5,25℃条件下,一个单位每分钟可将1.0 μmol的草酰乙酸和β-NADH转化为 L苹果酸和β-NAD。

外觀

3 M (NH4)2SO4 - 0.01 M KH2PO4 溶液 (pH 7.3) 中的混悬液

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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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)

商品

Instructions for working with enzymes supplied as ammonium sulfate suspensions

实验方案

This is a protocol to be used for all Malic Dehydrogenase products.

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