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尿素酶来源于洋刀豆 [脲酶],Urease from Canavalia ensiformis (Jack bean);Type IX, powder, 50,000-100,000 units/g solid

CAS号 9002-13-5 Enzyme Commission (EC) Number 3.5.1.5 ( BRENDA | IUBMB ) EINECS 编号 232-656-0 MDL number MFCD00070858 eCl@ss 32160410 NACRES NA.54
货号(SKU): U4002
CAS号: 9002-13-5
MDL号: MFCD00070858
增值税发票 √ 免费货运 [顺丰 联邦] √
¥807.09

产品描述

General description

Urease (Ure) enzyme is present in the cytosol. It is active at acidic pH and is expressed at 28°C.[2] Urease binds to nickel and is present in archaea, bacteria, unicellular eukaryotes and plants.[3] Jack bean urease was the first enzyme to be crystallized and the first enzyme found to contain nickel.[7] It is a multi-subunit enzyme, consisting of 91 kDa subunits in three protein forms.

亚基分子量:约 90,770
由六个亚基组成,总分子量:约 544620

Application

Urease from Canavalia ensiformis (Jack bean) has been used: to spike urine samples to determine the hydrolysis rate of urea in pure urine[4] It has also been used to study the inhibitory action of polyhalogenated benzo- and naphthoquinones on Bacillus pasteurii and Canavalia ensiformis.[5]

包装

20000, 100000, 500000, 1000000 units in poly bottle

Biochem/physiol Actions

Urease is involved in purine metabolism and the urea cycle. It hydrolyze urea to produce ammonia and carbon dioxide.[6]

洋刀豆(Jack Bean)中,脲酶促进L-刀豆氨酸转化为副刀豆氨酸。 [1]

Unit Definition

一微摩尔单位是指在pH 7.0,25℃下每分钟催化尿素释放1.0 μM NH3所需的酶活性。它相当于1.0 I.U.或0.054 Sumner单位(在pH 7.0,20°C,5分钟内产生1.0 mg氨氮)

性质

Quality Level200
typeType IX
formpowder
specific activity50,000-100,000 units/g solid
mol wt~544620 Da
storage temp.2-8°C


安全信息

符号
信号词 Danger
靶器官 Respiratory system
危害码 (欧洲) Xn
风险声明 (欧洲) 36/37/38-42
安全声明 (欧洲) 22-24-26-36/37
RIDADR NONH for all modes of transport
WGK德国 WGK 1
商品规格
属性名称属性值
储存温度 Storage temp.2-8°C冷藏
全球实时库存 Availability √美国St. Louis ≥ 88 | 欧洲Eur. ≥ 126 | 東京Tokyo ≥ 46 | 香港与北京 ≥ 62
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