Genetics and physiological expression of beta-hydroxy acid dehydrogenase in Drosophila

A mutant Hadnl was induced in Drosophila melanogaster and found to be deficient in beta-hydroxy acid dehydrogenase. This mutation was utilized to study the genetics and physiological expression of Had+ . Had+ was mapped to the X chromosome at 54.4 and seems to be the structural gene for the enzyme....

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Published in:Biochemical genetics 1978-01, Vol.16 (3-4), p.333-342
Main Authors: Tobler, J E, Grell, E H
Format: Article
Language:English
Subjects:
Animals
Carbohydrate Dehydrogenases - genetics
Carbohydrate Dehydrogenases - metabolism
Chromosome Mapping
Drosophila melanogaster - enzymology
Drosophila melanogaster - genetics
Female
Genes
Genetic Linkage
Hydrogen-Ion Concentration
Kinetics
Male
Substrate Specificity
X Chromosome
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Grell, E H
description A mutant Hadnl was induced in Drosophila melanogaster and found to be deficient in beta-hydroxy acid dehydrogenase. This mutation was utilized to study the genetics and physiological expression of Had+ . Had+ was mapped to the X chromosome at 54.4 and seems to be the structural gene for the enzyme. Enzyme activity in male and female flies indicates that the gene shows both dosage compensation independent from dose effect and differential activity during ontogeny. Electrophoretic mobility data indicate that the enzyme is a dimer which forms by random association of subunits. The fact that the mutant shows no detrimental effect implies that the enzyme is dispensable, at least under laboratory conditions. The biological and technical implications of this gene--enzyme system are discussed.
doi_str_mv 10.1007/BF00484089
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subjects Animals
Carbohydrate Dehydrogenases - genetics
Carbohydrate Dehydrogenases - metabolism
Chromosome Mapping
Drosophila melanogaster - enzymology
Drosophila melanogaster - genetics
Female
Genes
Genetic Linkage
Hydrogen-Ion Concentration
Kinetics
Male
Substrate Specificity
X Chromosome
title Genetics and physiological expression of beta-hydroxy acid dehydrogenase in Drosophila
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