推薦產品
描述
RTECS - YN5075000
Merck USA index - 14, 9795
品質等級
形狀
solid
比活性
≥2,500 USP units/mg dry wt
製造商/商標名
Calbiochem®
儲存條件
OK to freeze
desiccated (hygroscopic)
溶解度
HCl: 1 mM
neutral buffer: soluble
water: soluble
異物活動
Chymotrypsin ≤50 NF units/mg dry wt.
運輸包裝
ambient
儲存溫度
−20°C
一般說明
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.
警告
Toxicity: Irritant (B)
單位定義
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.
外觀
Salt-free
重構
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 H₂O 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. H₂O or buffer stock solutions are stable for up to 1 month at -70°C.
其他說明
Bergmeyer, H.U. 1983. Methods of Enzymatic Analysis, 3rd ed. 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.
Kostka, V., and Carpenter, F.H. 1964. J. Biol. Chem.239, 1799.
Hummel, B.C.W. 1955. Can. J. Biochem. Physiol.37, 1393.
法律資訊
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
訊號詞
Danger
危險分類
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
11 - Combustible Solids
水污染物質分類(WGK)
WGK 1
分析證明 (COA)
輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號,寫有 ‘Lot’或‘Batch’.。
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