半岛bd体育手机客户端 说明
一般描述
Native trypsin from bovine pancreas. Serine protease that specifically hydrolyzes amides, peptides, and proteins at the C-terminus side of arginine and lysine residues. Inhibitors include aprotinin, DFP, and soybean trypsin inhibitor. Has an optimal pH of 8.5-8.8.
Note: 1 NF unit = 1 USP unit = 3 SU at 30°C, pH 7.6; 1 TAME unit = 19.2 USP units = 57.5 BAEE units; 1 MU = 1,000,000 units.
Native trypsin from bovine pancreas. Serine protease that specifically hydrolyzes amides, peptides and proteins at the C-terminal side of arginine and lysine residues. Inhibitors include aprotinin, DFP, and soybean trypsin inhibitor. Note: 1 MU = 1,000,000 units.
包装
25 mu in Plastic ampoule
2.5 mu in Glass bottle
警告
Toxicity: Irritant (B)
单位定义
One USP unit is defined as the amount of enzyme that will digest BAEE and cause an increase in absorbance of 0.003 units at 253 nm per min at 25°C, pH 7.6.
外形
Salt-free
重悬
Following reconstitution in HCl, aliquot and freeze (-20°C) for long-term storage or refrigerate (4°C) for short-term storage. Dilute into aqueous buffers (at neutral pH) just prior to use. Following reconstitution in H?O or buffer, use immediately or aliquot and freeze (-70°C) to minimize autolysis. HCl stock solutions are stable for up to 1 week at 4°C or for up to 1 month at -20°C. H?O or buffer stock solutions are stable for up to 1 month at -70°C.
其他说明
Bergmeyer, H.U. 1983.Methods of Enzymatic Analysis, 3rded. Vol. 3, 17.
Kostka, V., and Carpenter, F.H. 1964.J. Biol. Chem.239,1799.
Hummel, B.C.W. 1955.Can. J. Biochem. Physiol.37,1393.
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 酶学委员会(EC)编号 | 3.4.21.4 ( BRENDA | IUBMB ) |
半岛bd体育手机客户端 性质
| 质量水平 | 100 |
| 形式 | solid |
| specific activity | ≥2,500 USP units/mg dry wt |
| manufacturer/tradename | Calbiochem? |
| 储存条件 | OK to freeze desiccated (hygroscopic) |
| 溶解性 | HCl: 1 mM neutral buffer: soluble water: soluble |
| 异质活性 | Chymotrypsin ≤50 NF units/mg dry wt. |
| 运输 | ambient |
| 储存温度 | ?20℃ |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H315 - H319 - H334 - H335 |
| 预防措施声明 | P261 - P264 - P271 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338 |
| 危险分类 | Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3 |
| 靶器官 | Respiratory system |
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
Sigma-Aldrich
m.cnreagent.com
