摘要:
PROBLEM TO BE SOLVED: To provide an inducible gene expression system and a method for modulating the expression of a gene in a host cell by using the inducible gene expression system. SOLUTION: Provided is a gene expression modulating system containing (a) a first gene expression cassette expressible in a host cell and containing (i) a DNA-bonding domain recognizing a response element associated with a gene to modulate its expression and (ii) a polynucleotide encoding a first hybrid polypeptide containing an ecdysone receptor ligand bonding domain; and (b) a second gene expression cassette expressible in a host cell and containing (i) a trans-activation domain and (ii) a polynucleotide encoding a second hybrid polypeptide containing an invertebrate retinoid X receptor-bonded domain. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide new nuclear receptors containing substitution mutants, to provide their use in a nuclear receptor-based inducible gene expression system, and to provide a method for modulating the expression of gene in a host cell with the inducible gene expression system. SOLUTION: New substitution mutant receptors, their use in a group H nuclear receptor-based inducible gene expression system, applications such as gene therapy, large scale production of proteins and antibodies, cell-based high throughput screening assays, functional genomics and regulation of traits in transgenic organisms are disclosed. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an approach for developing a novel class of ligands being neither the steroidal system nor diacylhydrazine to control gene expression using known receptors. SOLUTION: There is disclosed a method for modulating exogenous gene expression in which an ecdysone receptor complex comprises: a DNA binding domain; a ligand binding domain; a trans-activation domain; and a ligand is contacted with a DNA construct comprising: an exogenous gene and a response element, wherein the exogenous gene is under the control of the response element and binding of the DNA binding domain to the response element in the presence of the ligand results in activation or suppression of the gene. The ligands comprise a class of ketones. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a new leafhopper ecdysone receptor polypeptide. SOLUTION: The nucleic acid encodes a leafhopper ecdysone receptor polypeptide. The vector comprises the same. The method for modulating gene expression in an ecdysone receptor-based gene expression modulation system is provided. The method for identifying molecules that modulate leafhopper ecdysone receptor activity is provided. The uses thereof are provided. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a modulating gene expression cassette relating to a field of biotechnology or gene engineering, specifically, a field of gene expression. SOLUTION: An ecdysone receptor/chimeric retinoid X receptor-based inducible gene expression system, and a method for modulating the expression of a gene in a host cell for applications such as gene therapy, large scale production of proteins and antibodies, cell-based high throughput screening assays, functional genomics, and regulation of traits in transgenic organisms, are provided. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
This invention relates to an improved method to modulate exogenous gene expression in which an ecdysone receptor complex comprising: a DNA binding domain; a ligand binding domain; a transactivation domain; and a ligand is contacted with a DNA construct comprising: the exogenous gene and a response element; wherein the exogenous gene is under the control of the response element and binding of the DNA binding domain to the response element in the presence of the ligand results in activation or suppression of the gene. The improvement resides in a select group of non-steroid ligands which show improved activity over known ligands.
摘要:
PROBLEM TO BE SOLVED: To provide a new whitefly ecdysone receptor polypeptide. SOLUTION: The nucleic acid encodes a whitefly ecdysone receptor polypeptide. The vector comprises the same. The method for modulating gene expression in an ecdysone receptor-based gene expression modulation system is provided. The method for identifying molecules that modulate whitefly ecdysone receptor activity is provided. The uses thereof are provided. COPYRIGHT: (C)2009,JPO&INPIT