Aprotinin (Synonyms:抑肽酶)
目录号 : KM13103 CAS No. : 9087-70-1

Aprotinin是分离自牛肺的丝氨酸蛋白酶 (BPTI) 抑制剂,对胰蛋白酶和胰凝乳蛋白酶胰凝乳蛋白酶的 Ki 值分别为0.06 pM和9 nM。

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生物活性

Aprotinin is a bovine pancreatic trypsin inhibitor (BPTI) inhibitor which inhibits trypsin and chymotrypsin with Kis of 0.06 pM and 9 nM, respectively.

体外研究

Aprotinin, a serine protease inhibitor isolated from bovine lung, is a complex protease inhibitor that is an antifibrinolytic, inhibits contact activation, and decreases the inflammatory response to cardiopulmonary bypass. Aprotinin inhibits trypsin (bovine, Ki= 0.06 pM), chymotrypsin (bovine, Ki= 9 nM), plasmin (human, 0.23 nM). Aprotinin is also a competitive protein inhibitor of NOS activity. It inhibits NOS-I and NOS-II with Ki values of 50 μM and 78 μM, respectively. Aprotinin significantly inhibits fibrinolysis with an IC50 of 0.16±0.05 μM.

体内研究

High dose aprotinin can reduce blood loss and transfusion requirements associated with primary cardiac procedures such as coronary artery bypass graft (CABG) or heart valve replacement surgery. Aprotinin inhibits thrombus formation in a dose-dependent manner. Aprotinin at a dose of 1.5 mg kg (bolus) and 3 mg kg h infusion (maintenance infusion) causes a tendency towards a reduction in bleeding time. Aprotinin significantly reduces the bleeding time starting at a dose of 3 mg kg bolus plus 6 mg kg h showing a reduction of approximately 84%±2.9%. At the highest dose of 5 mg kg and 10 mg kg h, the strongest effects are observed. Aprotinin may affect tumor necrosis factor-alpha (TNF) levels. Soluble TNFRI levels are significantly increased following I/R in the aprotinin treated wild type mice and not detected in all TNFRInull mice.

分子式
C284H432N84O79S7
分子量
6511.44
CAS号
9087-70-1
中文名称
抑肽酶;抑胰肽酶;屈来密多
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -80°C 2 years
-20°C 1 year
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

H2O : 100 mg/mL (15.36 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 0.1536 mL 0.7679 mL 1.5358 mL
5 mM 0.0307 mL 0.1536 mL 0.3072 mL
10 mM 0.0154 mL 0.0768 mL 0.1536 mL
*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

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科研文献
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