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    • 8. 发明申请
    • CHARACTERISATION OF GENE FUNCTION USING DOUBLE STRANDED RNA INHIBITION
    • 用双链RNA抑制法表征基因功能
    • WO0001846A3
    • 2000-06-15
    • PCT/EP9904718
    • 1999-07-02
    • DEVGEN NVPLAETINCK GEERTPLATTEEUW CHRISTMORTIER KATHERINEBOGAERT THIERRY
    • PLAETINCK GEERTPLATTEEUW CHRISTMORTIER KATHERINEBOGAERT THIERRY
    • C12N15/09A01K67/02C12N1/15C12N1/19C12N1/21C12N5/10C12N15/10C12N15/63C12N15/82C12N15/86C12Q20060101C12Q1/68
    • C12N15/1079C12N15/1093C12N15/8216C12N15/8218C12N15/8279C12N15/8285C12N15/86C12N2795/10243C12N2800/40C12N2830/002C12N2830/008C12N2830/42C12Q1/68Y02A40/164
    • There is provided a method of identifying DNA responsible for conferring a particular phenotype in a cell which method comprises a) constructing a cDNA or genomic library of the DNA of said cell in a suitable vector in an orientation relative to a promoter(s) capable of initiating transcription of said cDNA or DNA to double stranded (ds) RNA upon binding of an appropriate transcription factor to said promoter(s), b) introducing said library into one or more of said cells comprising said transcription factor, and c) identifying and isolating a particular phenotype of said cell comprising said library and identifying the DNA or cDNA fragment from said library responsible for conferring said phenotype. Using this technique it is also possible to assign function to a known DNA sequence by a) identifying a homologue(s) of said DNA sequence in a cell, b) isolating the relevant DNA homologue(s) or a fragment thereof from said cell, c) cloning said homologue or fragment thereof into an appropriate vector in an orientation relative to a suitable promoter(s) capable of initiating transcription of dsRNA from said DNA homologue or fragment upon binding of an appropriate transcription factor to said promoter(s) and d) introducing said vector into said cell from step a) comprising said transcription factor.
    • 提供了鉴定负责赋予细胞中特定表型的DNA的方法,该方法包括a)在合适的载体中以相对于启动子的方向构建所述细胞的DNA的cDNA或基因组文库,所述启动子能够 在将适当的转录因子与所述启动子结合后,启动所述cDNA或DNA转录成双链(ds)RNA,b)将所述文库引入一个或多个包含所述转录因子的所述细胞中,以及c)鉴定并 分离包含所述文库的所述细胞的特定表型,并从所述文库中鉴定出赋予所述表型的DNA或cDNA片段。 使用该技术,还可以通过a)鉴定细胞中所述DNA序列的同源物,b)从所述细胞中分离相关的DNA同源物或其片段, c)将所述同源物或其片段以合适的启动子的方向克隆到合适的载体中,所述启动子能够从适当的转录因子与所述启动子结合后从所述DNA同源物或片段启动dsRNA的转录,和d )将所述载体导入步骤a)的所述细胞中,所述细胞包含所述转录因子。
    • 10. 发明专利
    • Vector construct
    • 矢量构造
    • JP2012228256A
    • 2012-11-22
    • JP2012151889
    • 2012-07-05
    • Devgen Nvデフヘン・ナムローゼ・フェンノートシャップDEVGEN nv
    • PLAETINCK GEERTRENARD JEAN-PIERREBOGAERT THIERRY
    • C12N15/09C12N1/21C12N15/113C12N15/63C12N15/70C12P19/34C12R1/19
    • C12N15/63C12N15/70C12P19/34
    • PROBLEM TO BE SOLVED: To provide a vector construct useful in the expression of double-stranded RNA.SOLUTION: The DNA construct comprises (a) a first promoter and (b) a second promoter, wherein the first promoter and the second promoter are in opposite orientation to each other. Additionally the construct comprises (c) an inter-promoter region that is located downstream of the 3' terminal of the first promoter and downstream of the 3' terminal of the second promoter and defined, (d) at least one cloning site located in the inter-promoter region, and (e) a first transcription terminator which is located downstream of the first promoter and downstream of at least one cloning site when viewed from the 3' terminal side of the first promoter. The first transcription terminator is operably linked to the first promoter. The construct is useful for expression of double-stranded RNA in vitro and in vivo.
    • 待解决的问题:提供可用于双链RNA表达的载体构建体。 解决方案:DNA构建体包含(a)第一启动子和(b)第二启动子,其中第一启动子和第二启动子彼此相反取向。 另外,构建体包含(c)位于第一启动子的3'末端下游并在第二启动子的3'末端下游的启动子间区域,并定义了(d)至少一个位于第 启动子区域,和(e)当从第一启动子的3'末端侧观察时,位于第一启动子下游的第一转录终止子和至少一个克隆位点的下游。 第一转录终止子可操作地连接到第一启动子。 该构建体可用于在体外和体内表达双链RNA。 版权所有(C)2013,JPO&INPIT