D-3-羟基丁酸酯,脱氢酶
物理性质
性状:冻干粉末。
溶解性:溶于水
作用与用途
Application Suitable for the determination of acetoacetate and D(-)-3-hydroxybutyrate by the method of Williamson, D. H., and Mellanby, J., Methods of Enzymatic Analysis, Bergmeyer, H., ed., 2nd edition, 4, 1836 (1974).
Biochem/physiol Actions In mammalian systems, β-hydroxybutyrate dehydrogenase is localized on the inner mitochondrial membrane and requires phosphatidyl choline for activity. In contrast, the enzyme from Pseudomonas is a soluble cytosolic enzyme that does not require a phospholipid allosteric activator. The enzyme is required for the utilization of ketone bodies as a source of metabolic energy. It catalyzes the oxidation of 3-hydroxybutyrate to acetoacetate, the first step in the conversion of ketone bodies to citric acid, which is then further metabolized via the tricarboxylic acid cycle (Krebs cycle).
Unit Definition One unit will oxidize 1.0 μmole of D-β-hydroxybutyrate to acetoacetate per min at pH 7.8 at 37 °C.
Physical form Lyophilized powder containing sucrose and Tris buffer salts
性质与稳定性
二、用途
用于生化研究。
贮存方法
一、贮存
应充氩气密封于0℃以下(粉末)和4℃(悬浮液)保存。
计算化学数据
计算化学数据:
1、 疏水参数计算参考值(XlogP):6.1
2、 氢键供体数量:3
3、 氢键受体数量:4
4、 可旋转化学键数量:12
5、 拓扑分子极性表面积(TPSA):73.1
6、 重原子数量:38
7、 表面电荷:0
8、 复杂度:739
9、 同位素原子数量:0
10、 确定原子立构中心数量:0
11、 不确定原子立构中心数量:0
12、 确定化学键立构中心数量:0
13、 不确定化学键立构中心数量:0
14、 共价键单元数量:1