胆固醇氧化酶来源于微生物

属性





存贮条件


储存温度 -20°C





描述





产品介绍


Cholesterol oxidase has been used in a study to improve treatment of oxysterol-mediated cytotoxicity. Cholesterol oxidase has also been used in a study that determined that cholesterol depletion impairs coupling between channel opening and vesicle release by allowing voltage-gated calcium channels to move further from release sites.Cholesterol oxidase has been used in a study to improve treatment of oxysterol-mediated cytotoxicity. Cholesterol oxidase has also been used in a study that evaluated the effects of cholesterol depletion. This study reported that cholesterol depletion impairs the coupling between channel opening and vesicle release. Additionally, cholesterol oxidase is used to determine serum cholesterol levels. The enzyme also finds application in the microanalysis of steroids in food samples. It has also been used for distinguishing 3-ketosteroids from 3β-hydroxysteroids. Transgenic plants expressing cholesterol oxidase have been investigated in the fight against the cotton boll weevil. CHOD has also been used as a molecular probe to elucidate cellular membrane structures.




别名


Oxidase cholesterol;




生化机理


胆固醇氧化酶及胆固醇脂酶一起用于血脂类项目如高密度脂蛋白（HDL-C）、低密度脂蛋白（LDL-C）以及总胆固醇（CHO）等。




应用


Cholesterol oxidase (CHOD) is a monomeric flavoprotein containing FAD that catalyzes the first step in cholesterol catabolism. This bifunctional enzyme oxidizes cholesterol to cholest-5-en-3-one in an FAD-requiring step. The pH optimum of the enzyme is 7.0 to 7.5 and temperature optimum is 50 °C. The pH stability is 5.7-7.8. Hg2 , Ag , and ionic detergents inhibit the enzyme activity. Molecular mass of the enzyme is 62 kDa. Pathogenic bacteria require CHOD to infect a host′s macrophage



-----------------------
储存条件 ：

2-8° C密闭、阴凉干燥处

稳定性 ：

Other Notes Contains sodium cholate and borate.

Unit Definition One unit will convert 1.0 μmole of cholesterol to 4-cholesten-3-one per min at pH 7.5 at 25 ° C. Note: 4-cholesten-3-one may undergo isomerization.



更多 ：

1. 性状：灰黄色溶液。

2. 密度（g/mL,25℃）：未确定

3. 相对蒸汽密度（g/mL,空气=1）：未确定

4. 熔点（℃）：未确定

5. 沸点（℃,常压）：未确定

6. 沸点（℃,5.2kPa）：未确定

7. 折射率：未确定

8. 闪点（℃）：未确定

9. 比旋光度（º ）：未确定

10. 自燃点或引燃温度（℃）：未确定

11. 蒸气压（kPa,20℃）：未确定

12. 饱和蒸气压（kPa,60℃）：未确定

13. 燃烧热（KJ/mol）：未确定

14. 临界温度（℃）：未确定

15. 临界压力（KPa）：未确定

16. 油水（辛醇/水）分配系数的对数值：未确定

17. 爆炸上限（%,V/V）：未确定

18. 爆炸下限（%,V/V）：未确定

19. 溶解性：溶于水

-----------------------
个人防护装备 ： Eyeshields; Gloves; type N95 (US); type P1 (EN143) respirator filter

危险品运输编码 ：NONH for all modes of transport