HETEROLOGUE CONVERSION OF AMPHIBIAN HYDRIN-2 INTO VASOTOCIN THROUGH BOVINE GRANULE ALPHA-AMIDATING ENZYME

被引:9
作者
ROUILLE, Y [1 ]
CHAUVET, J [1 ]
ACHER, R [1 ]
机构
[1] UNIV PARIS 06,CHIM BIOL LAB,96 BLVD RASPAIL,F-75006 PARIS,FRANCE
关键词
PROVASOTOCIN PROCESSING; HYDRIN-VASOTOCIN CONVERSION; ALPHA-AMIDATING ENZYME; NEUROSECRETORY GRANULES; NEUROHYPOPHYSEAL HORMONES;
D O I
10.1111/j.1365-2826.1991.tb00233.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Hydrin 2 (vasotocinyl-Gly), found along with vasotocin in the neurohypophysis of frogs and toads but not of other vasotocin-bearers such as birds and reptiles, is believed to act on water permeability of frog skin, whereas vasotocin mainly fulfils the antidiuretic fuction on the kidney. In order to understand the peculiar regulation of provasotocin differential processing in amphibians, conversion of hydrin 2 into vasotocin has been attempted using bovine pituitary granule alpha-amidating enzyme. Generated vasotocin has pharmacological properties and chromatographic behaviour in high-performance liquid chromatography identical to those of synthetic vasotocin. However, the low yield of conversion (5% to 10%) suggests that additional factor(s) might be involved in the physiological processing.
引用
收藏
页码:15 / 20
页数:6
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