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KMID : 0364219910340020142
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Korean Journal of Zoology
1991 Volume.34 No. 2 p.142 ~ p.147
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Properties of Angiotensin I-Converting Enzyme Activity in the Rice Eel, Monoptevus albus
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Kim Sung-Zoo
Lee Geum-Yeong
Cho Kyung-Woo
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Abstract
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Angiotensin I-converting enzyme (ACE) activity has been characterized in the rice eel, Monopterus albus. Peak activity of ACE in plasma from the rice eel was shown at around pH 10, which was more alkaline compared to that of mammals. Chloride requirements for the optimal ACE activity were different from species to spedes. ACE inhibitors, EDTA, teprotide (SQ 20, 881), and captopril (SQ 14, 225) showed dose-dependent inhibitions of ACE activity in plasma from the rice eel as well as mammals. ACE activity in the rice eel was increased by CoCI2, and the enzyme activity was more unstable at high temperature as compared to mammals The highest activity of ACE among the various tissues in the rice eel was found in the brain.
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KEYWORD
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Rice eel, Angiotensin I-convering enzyme
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