2 ARYLAMIDASES FROM HUMAN LIVER AND THEIR KININ-CONVERTING ACTIVITY

被引:13
作者
FREITAS, JO
GUIMARAES, JA
BORGES, DR
PRADO, JL
机构
[1] Department of Biochemistry and Pharmacology, Escola Paulista de Medicina, 01000 São Paulo, SP
来源
INTERNATIONAL JOURNAL OF BIOCHEMISTRY | 1979年 / 10卷 / 01期
关键词
D O I
10.1016/0020-711X(79)90143-5
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
1. 1. Two arylamidases, called B and N, were found in human liver homogenates. 2. 2. Arylamidase N, purified 300-fold, MW 200,000, converts lysylbradykinin into bradykinin at a rate higher than 1.53 μniole/min per mg protein, and does not depend on chloride ions. 3. 3. Arylamidase B, unstable, is a chloride dependent arylamidase and has no kinin-converting activity. 4. 4. Comparative hydrolysis rates of some aminoacyl-β-naphthylamides and other properties also show that they are different enzymes. © 1979.
引用
收藏
页码:81 / 89
页数:9
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