title: Conditional UAS-targeted repression in Drosophila.
abstract: The Gal4-UAS enhancer trap system is useful for driving gene expression in various tissues. A new tool that extends Gal4 technology is described here. A fusion protein containing the Gal4 binding domain and the repression domain of the isolator suppressor of hairy wing was placed under the control of a heat shock-inducible promoter. The construct mediates the conditional repression of genes located downstream of a UAS sequence. The repressive effects of the chimeric protein on fasII gene expression were tested by western-blot analysis and in brain sections of adult Drosophila. Owing to the increasing number of Gal4 and UAS transgenic lines, this versatile system will facilitate the study of gene function.
authors.affiliation: Développement, Evolution, Plascticité du Système Nerveux, C.N.R.S. 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France.
authors.forename: Alberto
authors.initials: A
authors.lastname: Pascual
authors.forename: Kai-Lian
authors.initials: KL
authors.lastname: Huang
authors.forename: Thomas
authors.initials: T
authors.lastname: Preat
mesh_terms: D000818:Animals; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics*; D004330:Drosophila / Q000235:genetics* / Q000378:metabolism; D029721:Drosophila Proteins; D005786:Gene Expression Regulation; D020868:Gene Silencing; D006358:Hot Temperature; D016254:Mutagenesis, Insertional; D009687:Nuclear Proteins / Q000737:chemistry / Q000235:genetics*; D017434:Protein Structure, Tertiary; D011993:Recombinant Fusion Proteins / Q000096:biosynthesis / Q000235:genetics; D012045:Regulatory Sequences, Nucleic Acid; D012097:Repressor Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism
chemical_list: D004268:DNA-Binding Proteins; D029721:Drosophila Proteins; C052130:GAL4 protein, S cerevisiae; D009687:Nuclear Proteins; D011993:Recombinant Fusion Proteins; D012097:Repressor Proteins; D029701:Saccharomyces cerevisiae Proteins; D014157:Transcription Factors; C083738:su(Hw) protein, Drosophila