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    • 5. 发明授权
    • BCL-2 gene inhibitory element binding factor
    • BCL-2基因抑制因子结合因子
    • US5643727A
    • 1997-07-01
    • US390858
    • 1995-02-16
    • John C. ReedMasayoshi Harigai
    • John C. ReedMasayoshi Harigai
    • A61K38/00C07K14/47C12N15/85C12Q1/68A61K38/16C07H21/04
    • C12N15/85C07K14/4702A61K38/00
    • The present invention provides a bcl-2 gene inhibitory element (BIE), which can inhibit expression of a gene in position-dependent and orientation-dependent manner. The invention provides, for example, BIE-1, having the nucleotide sequence 5'-CAAGAATGCAA-3' (SEQ ID NO: 1), which acts in an orientation-dependent and position-dependent manner to down-regulate the expression of the bcl-2 gene. The invention also provides a BIE binding factor (BBF), which is a cellular factor that can bind to a BIE. The invention provides, for example, BBF-A, which binds to BIE-1, including a nucleic acid sequence (SEQ ID NO: 8) encoding a portion of the amino acid sequence (SEQ ID NO: 9) of BBF-A. The invention further provides an antibody that specifically binds BBF-A. The invention also provides screening assays for identifying agents that can increase or decrease the binding of a BBF to a BIE, modulate the expression of a nucleic acid molecule linked to a BIE or modulate apoptosis in a cell.
    • 本发明提供了能够以位置依赖性和取向依赖性抑制基因表达的bcl-2基因抑制元件(BIE)。 本发明提供了具有核苷酸序列5'-CAAGAATGCAA-3'(SEQ ID NO:1)的BIE-1,其以取向依赖性和位置依赖性方式起作用以下调 bcl-2基因。 本发明还提供了BIE结合因子(BBF),其是可以结合BIE的细胞因子。 本发明提供了例如与BIE-1结合的BBF-A,其包括编码BBF-A的氨基酸序列(SEQ ID NO:9)的一部分的核酸序列(SEQ ID NO:8)。 本发明还提供了特异性结合BBF-A的抗体。 本发明还提供用于鉴定可以增加或减少BBF与BIE的结合,调节与BIE连接的核酸分子的表达或调节细胞凋亡的试剂的筛选测定。