Nattokinase

Nattokinase;

Nattokinase 是一种有效的纤溶酶,可通过直接水解纤维蛋白和纤溶酶底物来分解血凝块。Nattokinase 可用于研究心血管疾病。

Nattokinaseamp;;

Nattokinase Chemical Structure

CAS No. : 133876-92-3

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生物活性

Nattokinase is a potent fibrinolytic enzyme. Nattokinase can break down blood clots by directly hydrolyzing fibrin and plasmin substrate. Nattokinase can be used for the research of cardiovascular diseases[1].

体外研究
(In Vitro)

Nattokinase dissolves 94% blood clot at ten minutes and degrades the fibrin clot after two hours of incubation[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

Nattokinase (150-250 mg/kg; oral gavage twice daily for 2 days) exhibits fibrinolytic activity and dissolves blood clots in vivo[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Sprague-Dawley (SD) rats (180-220 g) are injected κ-Carrageenan[3]
Dosage: 150, 250 mg/kg
Administration: Oral gavage twice daily for 2 days
Result: Increased the plasma concentration of fibrin/fibrinogen degradation products (FDPs) and D-Dimer in a dose-dependent manner.
Decreased the fraction of the vessel cross section occupied by thrombosis.

Clinical Trial

CAS 号

133876-92-3

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -80deg;C 2 years
-20deg;C 1 year
In solvent -80deg;C 6 months
-20deg;C 1 month
溶解性数据
In Vitro:;

H2O : 100 mg/mL (Need ultrasonic)

参考文献
  • [1]. Weng Y, et, al. Nattokinase: An Oral Antithrombotic Agent for the Prevention of Cardiovascular Disease. Int J Mol Sci. 2017 Feb 28; 18(3):523.

    [2]. Chandrasekaran SD, et, al. Exploring the In Vitro Thrombolytic Activity of Nattokinase From a New Strain Pseudomonas aeruginosa CMSS. Jundishapur J Microbiol. 2015 Oct 26; 8(10): e23567.

    [3]. Xu J, et, al. Thrombolytic effects in vivo of nattokinase in a carrageenan-induced rat model of thrombosis. Acta Haematol. 2014; 132(2): 247-53.

纳豆激酶 Nattokinase

纳豆激酶
Nattokinase

  • 产品特性
  • 相关资料
  • Q&A
  • 参考文献

纳豆激酶纳豆激酶                              Nattokinase

Nattokinase


纳豆是日本传统发酵食品,由发酵大豆制造而成,深受日本民众喜爱。

纳豆激酶是从发酵所用到的纳豆菌(Bacillus subtilis var natto)中纯化得到的高品质纤维溶解蛋白酶。

本品为氨基酸序列确定的高纯度激酶,分子量约为 31 kDa(SDS-PAGE),等电位为 8.5~8.9 。可作为溶栓剂,口服安全,且在热、酸碱条件下较为稳定。

 

(1)由于可以用纳豆菌大量生产,口服也能保持高纤溶活性;

(2)已知有多重检测纳豆激酶活性的方法;其中使用纤维蛋白作底物的检测法,会引起其他蛋白酶(例:枯草杆菌和胰蛋白酶)的降解,因为难以

         到准确活性值。本产品使用合成酰胺作为纳豆激酶的特异性降解底物(S-2222),可以准确检测活性值;

(3)可用于药理领域的研究。

产品概况

来源:Bacillus subtilis var. natto

EC号:EC 3.4.21.62

外观:白色或淡褐色、结晶粉末或呈粉末状

活性:在瓶外标签显示实测值(例:390 IU/g)

最佳pH:7.8

最佳温度:37℃

分子量:约 27 kDa

氨基酸序列


纳豆激酶                              Nattokinase


活性单位定义


  使用合成酰胺底物 Bz-lle-GluOR-Gly-Arg-pNAS-2222:积水 medical 公司产品),在 37℃ 下分钟内降解1mol p-硝基苯胺所需酶数量为单位(IU

参考文献

[1]特许公报、平8-13271

[2]须见洋行:[关于纳豆激酶的技能型研究趋势],FOOD Style 21,10(10),1,(2006)

[3]须见洋行:[纳豆激酶的国际单位(IU)效价检测法],FOOD Stype 21,14(3),52,(2010)

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