title: Tunable Protein Stabilization In Vivo Mediated by Shield-1 in Transgenic Medaka.
abstract: Techniques for conditional gene or protein expression are important tools in developmental biology and in the analysis of physiology and disease. On the protein level, the tunable and reversible expression of proteins can be achieved by the fusion of the protein of interest to a destabilizing domain (DD). In the absence of its specific ligand (Shield-1), the protein is degraded by the proteasome. The DD-Shield system has proven to be an excellent tool to regulate the expression of proteins of interests in mammalian systems but has not been applied in teleosts like the medaka. We present the application of the DD-Shield technique in transgenic medaka and show the ubiquitous conditional expression throughout life. Shield-1 administration to the water leads to concentration-dependent induction of a YFP reporter gene in various organs and in spermatogonia at the cellular level.
authors.affiliation: Institute of Zoology, Technische Universität Dresden, Dresden, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Froschauer
authors.affiliation: Institute of Zoology, Technische Universität Dresden, Dresden, Germany.
authors.forename: Lisa
authors.initials: L
authors.lastname: Kube
authors.affiliation: Institute of Zoology, Technische Universität Dresden, Dresden, Germany.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Kegler
authors.affiliation: Institute of Zoology, Technische Universität Dresden, Dresden, Germany.
authors.forename: Christiane
authors.initials: C
authors.lastname: Rieger
authors.affiliation: Institute of Zoology, Technische Universität Dresden, Dresden, Germany.
authors.forename: Herwig O
authors.initials: HO
authors.lastname: Gutzeit
mesh_terms: D000818:Animals; D030801:Animals, Genetically Modified / Q000378:metabolism*; D005786:Gene Expression Regulation / Q000187:drug effects; D017930:Genes, Reporter / Q000187:drug effects; D008024:Ligands; D008297:Male; D009025:Morpholines / Q000494:pharmacology*; D009990:Oryzias / Q000235:genetics / Q000378:metabolism*; D046988:Proteasome Endopeptidase Complex / Q000378:metabolism; D017434:Protein Structure, Tertiary; D011506:Proteins / Q000378:metabolism*
chemical_list: D008024:Ligands; D009025:Morpholines; D011506:Proteins; C540198:Shield-1 compound; D046988:Proteasome Endopeptidase Complex