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    • 9. 发明申请
    • REVERSE TRANSCRIPTASE MEDIATED RNA GENE EXPRESSION
    • 逆转录酶介导的RNA基因表达
    • WO2006026611A3
    • 2009-04-16
    • PCT/US2005030825
    • 2005-08-30
    • MITCHELL LLOYD G
    • MITCHELL LLOYD G
    • C12Q1/00C12Q1/68C12Q1/70
    • C12N9/1276
    • The present invention provides methods and compositions for expressing a polypeptide or nucleic acid of interest in cells expressing reverse transcriptase (RT). The compositions of the invention include reverse transcriptase RNA (RTD-RNA) molecules that are designed to be reverse transcribed into a DNA molecule capable of encoding a polypeptide or nucleic acid of interest. Polypeptides of interest include cytotoxic, therapeutic, enzymatic, or reporter polypeptides. Nucleic acid molecules of interest include those capable of regulating, altering or reprogramming gene expression, for example, those capable of functioning as antisense, aptamer, decoy, inhibitor, ribozyme, or RNAi molecules.
    • 本发明提供用于在表达逆转录酶(RT)的细胞中表达感兴趣的多肽或核酸的方法和组合物。 本发明的组合物包括逆转录酶RNA(RTD-RNA)分子,其被设计为逆转录成能够编码感兴趣的多肽或核酸的DNA分子。 感兴趣的多肽包括细胞毒性,治疗性,酶学或报道多肽。 感兴趣的核酸分子包括能够调节,改变或重编程基因表达的核酸分子,例如能够作为反义,适体,诱饵,抑制剂,核酶或RNAi分子起作用的核酸分子。
    • 10. 发明申请
    • SCREENING METHODS FOR IDENTIFICATION OF EFFICIENT PRE-TRANS-SPLICING MOLECULES
    • 用于识别有效预分离分子的筛选方法
    • WO2004038380A2
    • 2004-05-06
    • PCT/US0334102
    • 2003-10-23
    • INTRONN INCMITCHELL LLOYD GPUTTARAJU MADAIAHGARCIA-BLANCO MARIANOOTTO EDWARDYANG YANPING
    • MITCHELL LLOYD GPUTTARAJU MADAIAHGARCIA-BLANCO MARIANOOTTO EDWARDYANG YANPING
    • C07H21/04C12Q1/68G01N20060101G01N33/50G01N33/53G01N
    • C12N15/1027C12N15/1086G01N33/5023
    • The present invention provides methods and compositions for rapid high capacity functional screening to identify optimal pre-trans-splicing molecules (PTMs). The compositions of the invention include PTM expression libraries capable of encoding candidate PTMs designed to interact with a target precursor messenger RNA molecule (target pre-mRNA) and mediate a trans-splicing reaction resulting in the generation of a novel chimeric RNA molecule (chimeric RNA). The candidate PTMs of the invention encode a portion of a first reporter molecule and may encode one or more other reporter molecules, which can be used to select for cells expressing optimal PTMs (efficient and specific). The compositions of the invention also include cells that express a target pre-mRNA encoding the remaining portion of the first reporter molecule. The screening methods of the invention encompass (i) contacting a PTM expression library with cells expressing a target pre-mRNA under conditions in which a trans-splicing reaction will occur in the presence of an optimal PTM (expressed by the library vector) resulting in the formation of a chimeric repaired RNA molecule capable of encoding at least one reporter molecule; (ii) selecting for cells expressing the repaired reporter molecule wherein expression of the reporter molecule indicates the presence of an optimal PTM in the selected cell; and (iii) identifying the optimal PTM expressed in the selected cell(s). The additional reporter molecule(s) can be used to assess both specific and non-specific trans-splicing, as well direct PTM expression.
    • 本发明提供用于快速高容量功能筛选以鉴定最佳预转录分子(PTM)的方法和组合物。 本发明的组合物包括能够编码设计成与靶前体信使RNA分子(靶前体mRNA)相互作用的候选PTM的PTM表达文库,并介导产生新型嵌合RNA分子的转拼反应(嵌合RNA )。 本发明的候选PTM编码第一报告分子的一部分并且可以编码一个或多个其它报告分子,其可用于选择表达最佳PTM(有效和特异性)的细胞。 本发明的组合物还包括表达编码第一报告分子的剩余部分的靶mRNA的细胞。 本发明的筛选方法包括(i)在最优PTM(由文库载体表达)存在下在其中将发生转拼反应的条件下使PTM表达文库与表达靶mRNA的细胞接触,导致 形成能够编码至少一个报告分子的嵌合修复的RNA分子; (ii)选择表达修复的报告分子的细胞,其中报道分子的表达指示所选细胞中存在最佳PTM; 和(iii)鉴定在所选择的细胞中表达的最佳PTM。 另外的报告分子可用于评估特异性和非特异性转拼,以及直接PTM表达。