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    • 8. 发明授权
    • Cell systems having specific interaction of peptide binding pairs
    • 具有肽结合对的特异性相互作用的细胞系统
    • US06284519B1
    • 2001-09-04
    • US09305483
    • 1999-05-06
    • Kathleen H. YoungBradley A. Ozenberger
    • Kathleen H. YoungBradley A. Ozenberger
    • C12N119
    • C07K14/72C07K14/61C07K2319/00C12Q1/6897
    • This invention relates to novel modified host cells which express heterologous fused proteins and methods of screening for test samples having peptide-binding activity; wherein the modified host cell comprises: (a) a gene sequence encoding a heterologous fusion protein; said fusion protein comprising a first peptide of a peptide binding pair, or segment of said first peptide, which is joined to either a DNA binding domain or its corresponding transcriptional activation domain of a transcriptional activation protein; (b) a gene sequence encoding a heterologous fusion protein, said fusion protein comprising a second peptide of the peptide binding pair in (a), or a segment thereof, fused to either a DNA binding domain or its corresponding transcriptional activation domain, whichever one is not employed in (a); (c) a reporter gene operatively associated with the transcriptional activation protein, or a portion thereof; (d) optionally, a deletion or mutation in the chromosomal DNA of the host cell for the transcriptional activation protein if present in the selected host cell.
    • 本发明涉及表达异源融合蛋白的新型修饰宿主细胞和筛选具有肽结合活性的测试样品的方法; 其中所述修饰的宿主细胞包含:(a)编码异源融合蛋白的基因序列; 所述融合蛋白包含肽结合对的第一肽或所述第一肽的片段,其连接到转录激活蛋白的DNA结合结构域或其相应的转录激活结构域; (b)编码异源融合蛋白的基因序列,所述融合蛋白包含(a)中的肽结合对的第二个肽或其片段,其融合到DNA结合结构域或其相应的转录激活结构域,无论哪个 (a)没有雇用; (c)与转录激活蛋白有效相关的报告基因,或其一部分; (d)任选地,如果存在于所选择的宿主细胞中,则转录激活蛋白的宿主细胞的染色体DNA中的缺失或突变。
    • 9. 发明授权
    • Cell systems having specific interaction of peptide binding pairs
    • 具有肽结合对的特异性相互作用的细胞系统
    • US06673540B1
    • 2004-01-06
    • US09714258
    • 2000-11-17
    • Kathleen H. YoungBradley A. Ozenberger
    • Kathleen H. YoungBradley A. Ozenberger
    • C12Q168
    • C07K14/72C07K14/61C07K2319/00C12Q1/6897
    • This invention relates to modified host cells which express heterologous fused proteins and methods of screening for test samples having peptide binding activity; wherein the modified host cell comprises: (a) a gene sequence encoding a heterologous fusion protein; the fusion protein comprising a first peptide of a peptide binding pair, or segment of the first peptide, which is joined to either a DNA binding domain or its corresponding transcriptional activation domain of a transcriptional activation protein; (b) a gene sequence encoding a heterologous fusion protein, the fusion protein comprising a second peptide of the peptide binding pair in (a), or a segment thereof, fused to either a DNA binding domain or its corresponding transcriptional activation domain, whichever one is not employed in (a); (c) a reporter gene operatively associated with the transcriptional activation protein, or a portion thereof; (d) optionally, a deletion or mutation in the chromosomal DNA of the host cell for the transcriptional activation protein if present in the selected host cell.
    • 本发明涉及表达异源融合蛋白的修饰的宿主细胞和筛选具有肽结合活性的测试样品的方法; 其中所述修饰的宿主细胞包含:(a)编码异源融合蛋白的基因序列; 所述融合蛋白包含肽结合对的第一肽或第一肽的片段,其连接到转录激活蛋白的DNA结合结构域或其相应的转录激活结构域; (b)编码异源融合蛋白的基因序列,所述融合蛋白包含(a)中的肽结合对的第二个肽或其部分融合到DNA结合结构域或其相应的转录激活结构域,无论哪个 (a)没有雇用; (c)与转录激活蛋白有效相关的报告基因,或其一部分; (d)任选地,如果存在于所选择的宿主细胞中,则转录激活蛋白的宿主细胞的染色体DNA中的缺失或突变。