BRUGIA-PAHANGI - IDENTIFICATION AND CHARACTERIZATION OF AN AMINOPEPTIDASE ASSOCIATED WITH LARVAL MOLTING

被引:56
作者
HONG, XQ [1 ]
BOUVIER, J [1 ]
WONG, MM [1 ]
YAMAGATA, GYL [1 ]
MCKERROW, JH [1 ]
机构
[1] UNIV CALIF DAVIS,DEPT VET MICROBIOL,DAVIS,CA 95616
关键词
MOLTING; NEMATODE; BRUGIA; AMINOPEPTIDASE (EC 3.4.11.); METALLOPROTEASE;
D O I
10.1006/expr.1993.1015
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
The third-stage larvae (L3) of the filarid parasite Brugia pahangi were surveyed for protease activity beginning with release from the mosquito vector through molting to the fourth-stage larvae (L4). A metalloaminopeptidase with a substrate preference for phenylalanine was released during the molting process. A screen of aminopeptidase inhibitors identified H-boroPhenylalanine(pinacol) as highly effective, with a K(i) of 1.3 x 10-11 M. This peptidase inhibitor also arrested molting of L3 larvae in vitro at a concentration of 100 μM. © 1994 Academic Press. All rights reserved.
引用
收藏
页码:127 / 133
页数:7
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