Gene silencing
    1.
    发明授权
    Gene silencing 有权
    基因沉默

    公开(公告)号:US06753139B1

    公开(公告)日:2004-06-22

    申请号:US09491549

    申请日:2000-01-26

    IPC分类号: C12Q168

    摘要: Methods are disclosed for screening for the occurrence of gene silencing (e.g., post transcriptional gene silencing) in an organism. Also provided are methods for isolating silencing agents so identified.

    摘要翻译: 公开了用于筛选生物体中基因沉默(例如转录后基因沉默)的发生的方法。 还提供了用于分离如此鉴定的沉默剂的方法。

    Gene silencing
    3.
    发明授权
    Gene silencing 有权
    基因沉默

    公开(公告)号:US08097710B2

    公开(公告)日:2012-01-17

    申请号:US10805804

    申请日:2004-03-22

    IPC分类号: C07H21/02 C12N15/09 C12N15/00

    摘要: A method to silence a gene in cells by post-transcriptional gene silencing is described which method employs short RNA molecules (SRMs). SRMs are short sense RNA molecules (SSRMs) and short antisense RNA molecules (SARMs) which SARMs are complementary to a region of a target RNA transcribed from a gene to be silenced and said SSRMs correspond to the sequence of the target RNA.

    摘要翻译: 描述了通过转录后基因沉默使细胞中的基因沉默的方法,哪种方法使用短RNA分子(SRM)。 SRM是短义RNA分子(SSRM)和短反义RNA分子(SARM),SARM与从被沉默的基因转录的靶RNA的区域互补,并且所述SSRM对应于靶RNA的序列。

    Enhanced transgene expression by co-expression with a suppressor of post-transcriptional gene silencing (PTGS)
    4.
    发明授权
    Enhanced transgene expression by co-expression with a suppressor of post-transcriptional gene silencing (PTGS) 有权
    通过与转录后基因沉默抑制剂(PTGS)共表达增强的转基因表达

    公开(公告)号:US07217854B1

    公开(公告)日:2007-05-15

    申请号:US10130758

    申请日:2000-11-22

    IPC分类号: C12N15/82 C12N15/84 C12N15/90

    摘要: Disclosed are a variety of methods for achieving enhanced expression from a target nucleotide sequence in a plant e.g. comprising the step of transiently introducing into a tissue of a plant (e.g. a leaf) a first nucleic acid comprising the target nucleotide sequence and a second nucleic acid encoding a Post Transcriptional Gene Silencing (PTGS) suppressor protein (preferably of viral or plant origin), wherein the first and second nucleic acids are comprised within a single binary vector construct, or the first and second nucleic acid sequences are comprised within a first binary vector and a second binary vector construct respectively. The plant tissue may then be harvested for the protein. Such methods can give much higher levels of gene expression than are obtainable using stable transgenes, or certain replicating vectors. Also disclosed are specific PTGS suppressor proteins: potato virus X (pvx) p25 protein; african cassava mosaic virus (acmv) AC2 protein; rice yellow mottle virus (rymv) P1 protein; tomato bushy stunt virus (tbsv) 19K protein; plus variants of these. These suppressors may be used in any PTRS context, including the enhancement of transient expression systems.

    摘要翻译: 公开了用于从植物中的靶核苷酸序列获得增强的表达的各种方法,例如, 包括将植物(例如叶)的组织瞬时引入包含靶核苷酸序列的第一核酸和编码后转录基因沉默(PTGS)抑制蛋白(优选病毒或植物来源)的第二核酸的步骤, 其中所述第一和第二核酸包含在单个二元载体构建体内,或所述第一和第二核酸序列分别包含在第一二元载体和第二二元载体构建体内。 然后可以收获植物组织用于蛋白质。 与使用稳定的转基因或某些复制载体可获得的方法相比,这样的方法可以提供高得多的基因表达水平。 还公开了特异性PTGS抑制蛋白:马铃薯病毒X(pvx)p25蛋白; 非洲木薯花叶病毒(acmv)AC2蛋白; 米黄斑病毒(rymv)P1蛋白; 番茄丛枝状特技病毒(tbsv)19K蛋白; 加上这些的变体。 这些抑制剂可用于任何PTRS上下文,包括增强瞬时表达系统。

    Enhanced transgene expression by co-expression with a suppressor of post-transcriptional gene silencing (PTGS)
    5.
    发明授权
    Enhanced transgene expression by co-expression with a suppressor of post-transcriptional gene silencing (PTGS) 有权
    通过与转录后基因沉默抑制剂(PTGS)共表达增强的转基因表达

    公开(公告)号:US08871997B2

    公开(公告)日:2014-10-28

    申请号:US11602416

    申请日:2006-11-20

    摘要: Disclosed are a variety of methods for achieving enhanced expression from a target nucleotide sequence in a plant e.g. comprising the step of transiently introducing into a tissue of a plant (e.g. a leaf) a first nucleic acid comprising the target nucleotide sequence and a second nucleic acid encoding a Post Transcriptional Gene Silencing (PTGS) suppressor protein (preferably of viral or plant origin), wherein the first and second nucleic acids are comprised within a single binary vector, construct, or the first and second nucleic acid sequences are comprised within a first binary vector and a second binary vector construct respectively. The plant tissue may then be harvested for the protein. Such methods can give much higher levels of gene expression than are obtainable using stable transgenes, or certain replicating vectors. Also disclosed are specific PTGS suppressor proteins: potato virus X (pvx), p25 protein; african cassava mosaic virus (acmv) AC2 protein; rice yellow mottle virus (rymv) P1 protein; tomato bushy stunt virus (tbsv) 19K protein; plus variants of these. These suppressors may be used in any PTRS context, including the enhancement of transient expression systems.

    摘要翻译: 公开了用于从植物中的靶核苷酸序列获得增强的表达的各种方法,例如, 包括将植物(例如叶)的组织瞬时引入包含靶核苷酸序列的第一核酸和编码后转录基因沉默(PTGS)抑制蛋白(优选病毒或植物来源)的第二核酸的步骤, 其中所述第一和第二核酸包含在单一二元载体,构建体内,或所述第一和第二核酸序列分别包含在第一二元载体和第二二元载体构建体内。 然后可以收获植物组织用于蛋白质。 与使用稳定的转基因或某些复制载体可获得的方法相比,这样的方法可以提供高得多的基因表达水平。 还公开了特异性PTGS抑制蛋白:马铃薯病毒X(pvx),p25蛋白; 非洲木薯花叶病毒(acmv)AC2蛋白; 米黄斑病毒(rymv)P1蛋白; 番茄丛枝状特技病毒(tbsv)19K蛋白; 加上这些的变体。 这些抑制剂可用于任何PTRS上下文,包括增强瞬时表达系统。