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    • 6. 发明申请
    • PCKA MODIFICATIONS AND ENHANCED PROTEIN EXPRESSION IN BACILLUS
    • PCKA修饰和增强蛋白在BACILLUS中的表达
    • WO2006033668A3
    • 2007-03-08
    • PCT/US2005011821
    • 2005-04-07
    • GENENCOR INTWEYLER WALTERHSU AMY KUANG-HUA
    • WEYLER WALTERHSU AMY KUANG-HUA
    • C07K14/32C12N9/88C12N15/63C12R1/125
    • C12P21/02C12N9/54C12N9/88
    • The present invention provides cells that have been genetically manipulated to have an altered capacity to produce expressed proteins, wherein the pckA gene has been modified or deleted. In particular, the present invention relates to Gram-positive microorganisms, such as Bacillus species having enhanced expression of a protein of interest, wherein one or more chromosomal genes have been modified and/or inactivated (e.g., pckA), and preferably wherein one or more chromosomal genes (e.g., pckA) have been modified and/or deleted from the Bacillus chromosome. In some further embodiments, one or more indigenous chromosomal regions have been modified and/or deleted from a corresponding wild-type Bacillus host chromosome.
    • 本发明提供已被遗传操作以具有改变产生表达蛋白质的能力的细胞,其中pckA基因已被修饰或缺失。 特别地,本发明涉及革兰氏阳性微生物,例如具有增强的感兴趣蛋白质表达的芽孢杆菌属物种,其中一个或多个染色体基因已被修饰和/或失活(例如,pckA),并且优选其中一个或多个 更多的染色体基因(例如,pckA)已经从芽孢杆菌染色体中修饰和/或缺失。 在一些另外的实施方案中,一个或多个本地染色体区已经从相应的野生型芽孢杆菌宿主染色体修饰和/或缺失。