Genetic and developmental characterization of the aldox-2 locus of Drosophila melanogaster

The aldox-2 locus in Drosophila melanogaster has been shown to affect differentially three molybdoenzymes, aldehyde oxidase, pyridoxal oxidase, and xanthine dehydrogenase. These effects are most obvious at times surrounding the pupal-adult boundary, when the normal organism accumulates large amounts...

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Bibliographic Details
Published inBiochemical genetics Vol. 24; no. 9/10; p. 683
Main Authors Meidinger, R.G, Bentley, M.M
Format Journal Article
LanguageEnglish
Published United States 01.10.1986
Subjects
ACTIVIDAD ENZIMATICA
ACTIVITE ENZYMATIQUE
Aldehyde Oxidase
Aldehyde Oxidoreductases - genetics
Animals
CHROMOSOME
Chromosome Mapping
CHROMOSOMES
CITOGENETICA
CROMOSOMAS
CYTOGENETICS
CYTOGENETIQUE
DROSOPHILA
Drosophila melanogaster - enzymology
Drosophila melanogaster - genetics
Drosophila melanogaster - growth & development
ENZYMIC ACTIVITY
FENOTIPOS
Genes
GENETICA
GENETICS
GENETIQUE
Heterozygote
Mutation
PHENOTYPE
PHENOTYPES
Xanthine Dehydrogenase - genetics
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Summary:The aldox-2 locus in Drosophila melanogaster has been shown to affect differentially three molybdoenzymes, aldehyde oxidase, pyridoxal oxidase, and xanthine dehydrogenase. These effects are most obvious at times surrounding the pupal-adult boundary, when the normal organism accumulates large amounts of these enzymes in their active form. This locus has been more precisely mapped genetically to 2-82.9 +/- 2.1, with complete concordance between the effects of all recombinant chromosomes on all three enzymes. The cytogenetic location has also been determined to be between 52E and 54E8, with the likelihood that it lies within the region 54B1-54E8. The aldox-2 mutant allele has no visible phenotype and is completely recessive for enzyme effects at all stages tested. Segmental duplication of this region, including the aldox-2+ allele, has no apparent effect on the visible phenotype or the enzymatic activity. The mutant aldox-2 allele has no effect on the developmental expression of two unrelated enzymes, 6-phosphogluconate dehydrogenase and NADP+-dependent isocitrate dehydrogenase. The effects of this locus on aldehyde oxidase, xanthine dehydrogenase, and pyridoxal oxidase suggest that this locus may code for a product involved in the synthesis of the molybdenum cofactor common to these enzymes.
Bibliography:8707108
L10
ISSN:0006-2928
1573-4927
DOI:10.1007/BF00499002