Aprotinin 蛋白酶YZ剂(抑肽酶) Sigma-Aldrich A1153_详细资料

产品信息 数量：大量规格： 48T/96T 其他说明 Unit Definition One trypsin inhibitor unit (TIU) will decrease the activity of 2 trypsin units by 50% where one trypsin unit will hydrolyze 1.0 μmole of N-α-benzoyl-DL-arginine p-nitroanilide (BAPNA) per min at pH 7.8 at 25 °C. Biochem/physiol Actions Serine protease inhibitor that inhibits trypsin, chymotrypsin, kallikrein and plasmin. Effective concentration equimolar with protease. Binding is reversible with most aprotinin-protease complexes dissociating at pH >10 or <3. mol wt mol wt ~6,500 solubility H₂O: >10 mg/mL storage temp. 2-8°C TEST SPECIFICATION appearance white to off-white powder solubility clear colorless solution at 5mg/ml in water activity 3 to 8tiu/mg solid unit definition One trypsin inhibitor unit (TIU) will decrease the activity of 2 trypsin units by 50% where one trypsin unit will hydrolyze 1.0 micromole of N-alpha-benzoyl-DL-arginine-p-nitroanilide (BAPNA) per minute at pH7.8 at 25degc. shelf life 2 years document # a1153/09/26/00/2 温馨提示：不可用于临床ZL。

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其他说明
Unit Definition	One trypsin inhibitor unit (TIU) will decrease the activity of 2 trypsin units by 50% where one trypsin unit will hydrolyze 1.0 μmole of N-α-benzoyl-DL-arginine p-nitroanilide (BAPNA) per min at pH 7.8 at 25 °C.
Biochem/physiol Actions	Serine protease inhibitor that inhibits trypsin, chymotrypsin, kallikrein and plasmin. Effective concentration equimolar with protease. Binding is reversible with most aprotinin-protease complexes dissociating at pH >10 or <3.
mol wt	mol wt ~6,500
solubility	H₂O: >10 mg/mL
storage temp.	2-8°C

TEST	SPECIFICATION
appearance	white to off-white powder
solubility	clear colorless solution at 5mg/ml in water
activity	3 to 8tiu/mg solid
unit definition	One trypsin inhibitor unit (TIU) will decrease the activity of 2 trypsin units by 50% where one trypsin unit will hydrolyze 1.0 micromole of N-alpha-benzoyl-DL-arginine-p-nitroanilide (BAPNA) per minute at pH7.8 at 25degc.
shelf life	2 years
document #	a1153/09/26/00/2