生物活性
Nattokinase is an enzyme extracted and purified from a Japanese food called nattō. Nattokinase is a serine protease of the subtilisin family. It exhibits a strong fibrinolytic activity. A 2009 study showed that nattokinase may be effective in catabolism of toxic amyloid fibrils associated with Alzheimer's Disease, as well as the insulin fibrils associated with diabetes and the prion peptide fibrils associated with prion diseases.
化学数据
分子量 | 463.5 |
分子式 | C23H28ClN3O5 |
CAS号 | 133876-92-3 |
纯度 | >98% |
溶解性(25°C) | 10 mM in DMSO |
储存和运输条件 | 固体粉末: -20°C 冷藏长期储存 常温运输及临时存放 |
不同实验动物依据体表面积的等效剂量转换表(数据来源于FDA指南)
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
动物 A的Km系数 |
例如,依据体表面积折算法,将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量,需要将20 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于产品分子量,对于特殊产品,请参照COA中的储备液配制条件和说明进行操作。
Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
---|
1 mM | 2.1575 mL | 10.7875 mL | 21.575 mL |
5 mM | 0.4315 mL | 2.1575 mL | 4.315 mL |
10 mM | 0.2157 mL | 1.0787 mL | 2.1575 mL |