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产品说明/Specification Sheet
产品名称: |
Trypsin Inhibitor 胰蛋白酶抑制剂 |
产品编号: |
T9003-25mg |
规格: |
25mg |
价格: |
¥380 |
产品类别: |
生化试剂 |
CAS#: |
9035-81-8 |
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品牌: |
Sigma |
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产品属性:
Description
Analysis Note |
One mg will inhibit minimum 1.0 mg of trypsin with activity of approx.10,000 BAEE units per mg protein. |
Preparation Note |
Trypsin inhibitor is soluble in water and phosphate buffers at concentrations of 10 mg/ml or higher. Solutions at higher concentrations may be hazy and have a yellow to amber color. |
Unit Definition |
One trypsin unit will produce a ΔA253 of 0.001 per min with BAEE as substrate at pH 7.6 at 25 °C; reaction volume 3.2 ml, 1 cm light path. |
Biochem/physiol Actions |
Soybean trypsin inhibitor inhibits trypsin and to a lesser extent chymotrypsin and plasmin. It forms a 1:1 stoichiometric complex with trypsin. Upon formation of this complex, trypsin may cleave a single arginine-isoleucine bond in the inhibitor. Dissociation of this complex may yield the modified form or the native inhibitor. At the optimal pH for trypsin binding (pH 8.0), the association constant is ≥ 10x108. |
Properties
type |
Type II-S |
form |
lyophilized powder |
storage temp. |
2-8°C | |
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