CHARACTERIZATION OF ENDOPEPTIDASE 3.4.24.11 (ENKEPHALINASE) ACTIVITY IN HUMAN PLASMA AND CEREBROSPINAL-FLUID

被引：62

作者：

SPILLANTINI, MG

SICUTERI, F

SALMON, S

MALFROY, B

机构：

[1] UNIV FLORENCE,DEPT CLIN PHYSIOPATHOL,RESP DIS UNIT,I-50134 FLORENCE,ITALY

[2] UNIV FLORENCE,INST INTERNAL MED & CLIN PHARMACOL,I-50134 FLORENCE,ITALY

[3] CTR PAUL BROCA,INSERM,U109,UNITE NEUROBIOL,F-75014 PARIS,FRANCE

来源：

BIOCHEMICAL PHARMACOLOGY | 1990年 / 39卷 / 08期

关键词：

D O I：

10.1016/0006-2952(90)90012-A

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

The presence of the neutral metallo-endopeptidase 3.4.24.11 ("enkephalinase") activity was investigated by fluorimetric assay in human body fluids. Although the enzyme was previously known to occur exclusively in membrane bound form in the human or animal central nervous system, its activity was detected in human cerebrospinal fluid (CSF), plasma and amniotic fluid. Although the endopeptidase 3.4.24.11 activity found in human body fluids has properties closely related to the membrane bound enzyme such as affinity constant for the inhibitors, optimal pH and Km for the substrate, the Vmax values were in CSF, plasma and amniotic fluid, respectively, 2 × 103, 102, 10 lower than mouse brain homogenate. © 1990.

引用

页码：1353 / 1356

页数：4

共 24 条

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