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大豆、牛碱性胰蛋白酶和牛初乳胰蛋白酶抑制剂对大鼠和牛胰蛋白酶及胰凝乳蛋白酶的抑制作用。

Inhibition of rat and bovine trypsins and chymotrypsins by soybean, bovine basic pancreatic, and bovine colostrum trypsin inhibitors.

作者信息

Esparza I, Brock J H

机构信息

Fundación F. Cuenca Villoro, Instituto de Bioquímica y Nutrición D. Juan Carlos I, Zaragoza, Spain.

出版信息

Comp Biochem Physiol B. 1978;61(3):347-50. doi: 10.1016/0305-0491(78)90135-9.

Abstract
  1. Bovine (Bos taurus) trypsin and trypsin activity in rat (Rattus norvegicus) pancreatic extract were inhibited by soybean trypsin inhibitor and by bovine basic pancreatic and colostrum inhibitors. 2. Bovine alpha-chymotrypsin was inhibited by soybean and bovine basic pancreatic inhibitors but only weakly by colostrum inhibitor. 3. Chymotrypsin activity in rat pancreatic extract was due to at least three different components against all of which the inhibitors were largely ineffective. 4. It is concluded that bovine colostrum inhibitor has a more limited inhibition spectrum than the phylogenetically related basic pancreatic inhibitor which, in turn, is less active against rat than against bovine enzymes.
摘要
  1. 大豆胰蛋白酶抑制剂、牛碱性胰蛋白酶抑制剂和初乳抑制剂可抑制牛(Bos taurus)胰蛋白酶以及大鼠(Rattus norvegicus)胰腺提取物中的胰蛋白酶活性。2. 大豆和牛碱性胰蛋白酶抑制剂可抑制牛α-糜蛋白酶,但初乳抑制剂对其抑制作用较弱。3. 大鼠胰腺提取物中的糜蛋白酶活性至少由三种不同成分引起,而这些抑制剂对所有这些成分的抑制作用大多无效。4. 得出的结论是,牛初乳抑制剂的抑制谱比系统发育相关的碱性胰蛋白酶抑制剂更有限,而碱性胰蛋白酶抑制剂对大鼠酶的活性比对牛酶的活性更低。

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Inhibition spectra of the human pancreatic endopeptidases.人胰腺内肽酶的抑制谱
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