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Significance of the variation in isozymes of liver lactate dehydrogenase with thermal acclimation in goldfish--II. Effect of pH.
Metadata
JournalComp. Biochem. Physiol., BNot FoundDate
1979
Type
Journal Article
Volume
1979 / 62 : 95-9
Author
Yamawaki H 1, Tsukuda H
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Doi
PMIDMESH
Acclimatization
Animals
Cyprinidae
Goldfish
Hot Temperature
Hydrogen-Ion Concentration
Isoenzymes
L-Lactate Dehydrogenase
Liver
Abstract
1. Effect of pH on liver lactate dehydrogenase (LDH) and its isozymes was examined in the goldfish acclimated to different temperatures and some purification of the LDH was attempted. 2. The optimal pH and the Km value at 30 degrees C of the enzyme were independent of acclimation temperature. 3. the optimal pH of isozyme was more basic in the order of LDH-1, LDH-2, LDH-3, LDH-4 and LDH-5. Km values of isozymes at 30 degrees C were higher in the order of LDH-1, LDH-3 and LDH-5. 4. There was no change in the enzyme activity during thermal acclimation.
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Comp. Biochem. Physiol., BComparative biochemistry and physiology. B, Comparative biochemistry
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