Serum polyphenol oxidase activity (ceruloplasmin) in conventional laboratory animals and man

The optimum pH for ceruloplasmin as polyphenol oxidase (EC 1.10.3.2) activity was determined in human serum (pH 5.4) and the serum of conventional laboratory animals--the rat (pH 5.2), mouse (pH 5.2), hamster (pH 5.3), guinea pig (pH 5.4), multimammate mouse (pH 5.2) and rabbit (pH 5.4). Determined...

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Bibliographic Details
Published inFolia biologica Vol. 24; no. 2; pp. 136 - 141
Main Author Pribyl, T
Format Journal Article
LanguageEnglish
Published Czech Republic 1978
Subjects
Animals
Ceruloplasmin - antagonists & inhibitors
Ceruloplasmin - metabolism
Citrates - pharmacology
Cricetinae
Guinea Pigs
Humans
Hydrogen-Ion Concentration
Mice
Phthalic Acids - pharmacology
Rabbits
Rats
Species Specificity
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Summary:The optimum pH for ceruloplasmin as polyphenol oxidase (EC 1.10.3.2) activity was determined in human serum (pH 5.4) and the serum of conventional laboratory animals--the rat (pH 5.2), mouse (pH 5.2), hamster (pH 5.3), guinea pig (pH 5.4), multimammate mouse (pH 5.2) and rabbit (pH 5.4). Determined at the optimum pH in 0.1M acetate buffer polyphenol oxidase activity fell in the sequence: rat--man--rabbit--mouse--multimammate mouse--hamster--guinea pig. Ceruloplasmin polyphenol oxidase activity was inhibited by 0.1M phosphate buffer in the mouse, rat and multimammate mouse, but not in the other species. It was inhibited by 0.05M citrate and 0.1M phthalate buffer in all the species tested.
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ISSN:0015-5500