DISTRIBUTION OF LIVER ALLANTOINASE AND ALLANTOICASE ACTIVITY IN FRESH-WATER TELEOSTS

被引：6

作者：

CVANCARA, VA

机构：

[1] Department of Zoology, University of South Dakota, Vermillion

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY | 1969年 / 29卷 / 02期

基金：

美国国家科学基金会;

关键词：

allantoicase; Allantoinase; fresh-water fish; liver enzymes; teleosts; urea production; uricolysis;

D O I：

10.1016/0010-406X(69)91614-4

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. Liver allantoinase activity was examined in eighteen species of fresh-water teleosts. Allantoinase activity ranged from 4·17 units/mg of protein in the shortnose gar (Lepisosteus platostomus) to 38·41 units/mg of protein in the white bass (Roccus chrysops). 2. 2. Liver allantoicase activity was examined in eleven species of fresh-water teleosts. Allantoicase activity ranged from 0·90 units/mg of protein in the wall-eye (Stizostedion vitreum) to 2·72 units/mg of protein in the northern redhorse (Moxostoma macrolepidotum). 3. 3. Certain parameters of allantoinase and allantoicase kinetics were measured. 4. 4. Findings support the theory that uricolysis may contribute substantially to urea production in fresh-water teleosts. © 1969.

引用

页码：631 / &

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