Antizyme is a target of sex-lethal in the drosophila germline and appears to act downstream of hedgehog to regulate sex-lethal and cyclin B

The sex determination master switch, Sex-lethal, has been shown to regulate the mitosis of early germ cells in Drosophila melanogaster. Sex-lethal is an RNA binding protein that regulates splicing and translation of specific targets in the soma, but the germline targets are unknown. In an experiment...

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Veröffentlicht in:Developmental biology 2003-01, Vol.253 (2), p.214-229
Hauptverfasser: Vied, Cynthia, Halachmi, Naomi, Salzberg, Adi, Horabin, Jamila I
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Halachmi, Naomi
Salzberg, Adi
Horabin, Jamila I
description The sex determination master switch, Sex-lethal, has been shown to regulate the mitosis of early germ cells in Drosophila melanogaster. Sex-lethal is an RNA binding protein that regulates splicing and translation of specific targets in the soma, but the germline targets are unknown. In an experiment aimed at identifying targets of Sex-lethal in early germ cells, the RNA encoded by gutfeeling, the Drosophila homolog of Ornithine Decarboxylase Antizyme, was isolated. gutfeeling interacts genetically with Sex-lethal. It is not only a target of Sex-lethal, but also appears to regulate the nuclear entry and overall levels of Sex-lethal in early germ cells. This regulation of Sex-lethal by gutfeeling appears to occur downstream of the Hedgehog signal. We also show that Hedgehog, Gutfeeling, and Sex-lethal function to regulate Cyclin B, providing a link between Sex-lethal and mitosis.
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subjects Animals
Animals, Genetically Modified
Antizyme
Base Sequence
Cyclin B
Cyclin B - genetics
Drosophila
Drosophila melanogaster - embryology
Drosophila melanogaster - genetics
Drosophila Proteins - genetics
Female
Gene Expression Regulation, Developmental
Genes, Insect
Germ Cells - cytology
Germ Cells - metabolism
Hedgehog
Hedgehog Proteins
Hot Temperature
Male
Models, Biological
Mutation
Oogenesis
Oogenesis - genetics
Proteins - genetics
RNA - genetics
RNA-Binding Proteins - genetics
Sex Determination Processes
Sex Differentiation - genetics
Sex-lethal
title Antizyme is a target of sex-lethal in the drosophila germline and appears to act downstream of hedgehog to regulate sex-lethal and cyclin B
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