会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明申请
    • COMPOSITIONS AND METHODS FOR THE SUPPRESSION OF TARGET POLYNUCLEOTIDES
    • 用于抑制目标多核苷酸的组合物和方法
    • WO2009091863A1
    • 2009-07-23
    • PCT/US2009/031056
    • 2009-01-15
    • PIONEER HI-BRED INTERNATIONAL, INC.LASSNER, Michael
    • LASSNER, Michael
    • C12N15/82
    • C12N15/8286C12N15/8218Y02A40/162
    • Methods and compositions which increase the concentration of an inhibitory RNA specific for a target sequence in a cell are provided. In one embodiment, the methods and compositions employ a first polynucleotide comprising a silencing element for a target pest sequence operably linked to a promoter active in the plant cell; and, a second polynucleotide comprising a suppressor enhancer element comprising the target pest sequence or an active fragment or variant thereof operably linked to a promoter active in the plant cell. The combined expression of the silencing element with the target pest sequence, or an active variant or fragment thereof, leads to the amplification of the inhibitory RNA produced from the silencing element over the achievable with only the expression of the silencing element alone. Thus, the various methods and compositions of the invention provide improved methods for the delivery of inhibitory RNA to a target organism.
    • 提供增加细胞中靶序列特异性抑制性RNA浓度的方法和组合物。 在一个实施方案中,所述方法和组合物采用第一多核苷酸,其包含可操作地连接于在植物细胞中有活性的启动子的靶害虫序列的沉默元件; 以及第二个多核苷酸,其包含抑制增强子元件,其包含目标有害生物序列或与植物细胞中活性的启动子有效连接的活性片段或变体。 沉默元件与目标害虫序列或其活性变体或片段的组合表达导致仅通过沉默元件的表达可实现的从沉默元件产生的抑制性RNA的扩增。 因此,本发明的各种方法和组合物提供了将抑制性RNA递送至靶生物体的改进方法。