过氧化氢酶(牛肝) 9001-05-2

过氧化氢酶(牛肝) 9001-05-2 过氧化氢酶(牛肝) 9001-05-2
产品名称：过氧化氢酶(牛肝) 9001-05-2
产品编号：A1472
中文别称 触酶；血中氧化酶；氧化酵素；过氧化氢放氧酶；Hydrogenperoxide
英文别称 Catalase
CAS 9001-05-2
分子量 四聚体约250 kDa
储存条件 -20℃
有效期 2年
溶解性 5 mg/mL in water
来源 from bovine liver
酶活/效价 5,000 units/mg protein
性状（性状） 红棕色冻干粉
包装 支 规格 1g
溶解性:DMSO，
鉴定方法:液相，
熔点:102℃-260℃，
密度:1.064 g/cm³，
保存条件:-20℃/2-8℃/RT避光，
运输料件:2-8℃，
保质期:2年，
产地:中国，
品牌:北京康瑞纳生物
类别:生化试剂，
库存:999，
用途:用于科研实验，细胞培养，体外诊断，配方原料，医药生产等方面
使用方法:www.biomart.cn/69029/index.htm详询客服
说明：生化研究，能使过氧化氢分解为水和氧

过氧化氢酶 来源于牛肝脏

Catalase from bovine liver

lyophilized powder, 2,000-5,000 units/mg protein

Frequently Asked Questions

Live Chat and Frequently Asked Questions are available for this Product.

Components

Catalase from bovine liver is a tetramer consisting of 4 equal subunits each with a 60 kDa molecular weight. Each of these subunits contains iron bound to a protoheme IX group. The enzyme will also strongly bind to NADP, where NADP and the heme group are within 13.7 angstroms.

Application

Catalase acts as a natural antioxidant to study the roles of reactive oxygen species in gene expression and apoptosis. It has also been used to protect against oxidative damage to proteins, lipids, and nucleic acids. Industrially, catalses have been used to remove hydrogen peroxide added to milk and cheese, in textile bleaching, and to examine its positive effects on the viability of DNA-repair mutants of E. coli.

Biochem/physiol Actions

激活过氧化氢的分解，用于研究活性氧在基因表达和细胞凋亡中的作用的天然抗氧化剂。

This product doesn′t need any activators, but it is inhibited by 3-amino-1-H-1,2,4 triazole, cyanide, azide, hydroxylamine, cyanogens bromide, 2-mercaptoethanol, dithiothreitol, dianisidnie and nitrate.

Caution

不建议冷冻溶液。

Preparation Note

由缩二脲测定的蛋白质

Unit Definition

在 pH 7.0 和 25°C 下，一单位本品每分钟可以分解 1.0μmol H2O2，同时 H2O2 浓度从 10.3mM 降至 9.2mM，这是通过 A240 的降低速率来测量的。

Related Categories 1.11.1.6 Catalase, 1.x.x.x Oxidoreductases, Application Index, Diagnostic and Analytical Enzymes, Enzyme Class Index,

General Metabolic Enzymes, General Metabolic Enzymes A-H, 代谢组学, 生化试剂, 细胞生物学, 酶、抑制剂和底物

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Quality Level ELITE

form lyophilized powder

mol wt tetramer mol wt ~250 kDa

isoelectric point 5.4

storage temp. −20°C

Gene Information cow ... CAT(280743)

 









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