Multiple Developmental Requirements of Noisette, the Drosophila Homolog of the U2 snRNP-Associated Polypeptide SF3a60
Copyright policy )Multiple Developmental Requirements of Noisette, the Drosophila Homolog of the U2 snRNP-Associated Polypeptide SF3a60
We report the cloning of the noisette gene (noi), which encodes the Drosophila melanogaster ortholog of a U2 snRNP-associated splicing factor, SF3a60 (SAP61) in humans and PRP9p in Saccharomyces cerevisiae. Antibodies raised against human SF3a60 recognized NOI in flies, showing a nuclear localization in all the stages examined, including the embryo, the dividing cells of imaginal discs, and the larval polyploid nuclei. NOI is expressed in somatic and germinal cells of both male and female gonads. By mobilization of P transposons, we have generated a large number of noi mutations. Complete loss of function resulted in lethality at the end of embryogenesis, without obvious morphological defects. Hypomorphic alleles revealed multiple roles of noi for the survival and differentiation of male germ cells, the differentiation of female germ cells, and the development of several adult structures.
- University of Geneva Switzerland
Male, PAX2 Transcription Factor, Chromosome Mapping, RNA-Binding Proteins, Zinc Fingers, Ribonucleoprotein, U2 Small Nuclear, Sex Determination Processes, DNA-Binding Proteins, Drosophila melanogaster, Mutation, DNA Transposable Elements, Animals, Humans, Female, Cloning, Molecular, Alleles, Transcription Factors
Male, PAX2 Transcription Factor, Chromosome Mapping, RNA-Binding Proteins, Zinc Fingers, Ribonucleoprotein, U2 Small Nuclear, Sex Determination Processes, DNA-Binding Proteins, Drosophila melanogaster, Mutation, DNA Transposable Elements, Animals, Humans, Female, Cloning, Molecular, Alleles, Transcription Factors
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