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    • 6. 发明申请
    • System for Screening Cells for High Expression of a Protein of Interest (Poi)
    • 筛选高表达兴趣蛋白(Poi)的细胞系统
    • US20080286824A1
    • 2008-11-20
    • US12064287
    • 2006-08-25
    • Philippe DuprazMichel Kobr
    • Philippe DuprazMichel Kobr
    • C12Q1/02C07K14/00C07H21/04C12N15/63C12P21/04C12P21/06C12N15/00C12N5/08C12N5/00
    • C12N9/1205C07K2319/20C07K2319/60C12N9/1029C12N15/64G01N33/5023
    • This invention refers to industrial production of proteins. More particularly, the invention refers to a fusion protein as a novel chimeric selection marker comprising a peptide conferring resistance to an antibiotic, or a fragment, allelic variant, splice variant or mutein thereof, and at least one sequence comprising SEQ ID NO: 1, 2 or 3, preferably for producing a protein of interest (POI). The inventive chimeric selection marker exhibits: (i) a resistance to an antibiotic; and (ii) a fluorescence activity upon binding of a ligand to the sequence comprising SEQ ID NO: 1, 2 or 3. The invention further refers to nucleic acids encoding the inventive fusion protein and to expression vectors, comprising the inventive fusion protein and additionally the protein of interest (POI). Finally, uses of the inventive chimeric selection marker for screening cells for high expression of a protein of interest (POI) are disclosed.
    • 本发明涉及蛋白质的工业化生产。 更具体地,本发明涉及作为新型嵌合选择标记的融合蛋白,其包含赋予抗生素或其片段等位基因变体,剪接变体或突变蛋白的抗性的肽,以及至少一个包含SEQ ID NO:1, 2或3,优选用于产生感兴趣的蛋白质(POI)。 本发明的嵌合选择标记显示:(i)对抗生素的抗性; 和(ii)在将配体结合到包含SEQ ID NO:1,2或3的序列时的荧光活性。本发明还涉及编码本发明融合蛋白的核酸和包含本发明融合蛋白的另外的表达载体 感兴趣的蛋白质(POI)。 最后,公开了本发明的嵌合选择标记用于筛选高表达目标蛋白(POI)的细胞的用途。