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    • 9. 发明申请
    • STABLE ZYMOMONAS MOBILIS XYLOSE AND ARABINOSE FERMENTING STRAINS
    • 稳定的ZYMOMONAS MOBILIS XYLOSE和ARABINOSE发酵菌株
    • WO0183786B1
    • 2002-07-18
    • PCT/US0111334
    • 2001-04-06
    • MIDWEST RESEARCH INST
    • ZHANG MINCHOU YAT-CHEN
    • C12N15/09C12N1/21C12N9/10C12N9/12C12N9/24C12N9/92C12N15/74C12N15/90C12P7/06C12R1/01C12N15/52
    • C12N9/1205C12N9/1022C12N9/92C12N15/74C12N15/90C12N15/902C12P7/06Y02E50/17
    • The present invention briefly includes a transposon for stable insertion of foreign genes into a bacterial genome, comprising at least one operon having structural genes encoding enzymes selected from the group consisting of xylAxylB, araBAD and tal/tkt , and at least one promoter for expression of the structural genes in the bacterium, a pair of inverted insertion sequences, the operons contained inside the insertion sequences, and a transposase gene located outside of the insertion sequences. A plasmid shuttle vector for transformation of foreign genes into a bacterial genome, comprising at least one operon having structural genes encoding enzymes selected from the group consisting of xylAxylB, araBAD and tal/tkt , at least one promoter for expression of the structural genes in the bacterium, and at least two DNA fragments having homology with a gene in the bacterial genome to be transfomed, is also provided. The transposon and shuttle vectors are useful in constructing significantly different Zymomonas mobilis strains, according to the present invention, which are useful in the conversion of the cellulose derived pentose sugars into fuels and chemicals, using traditional fermentation technology, because they are stable for expression in a non-selection medium.
    • 本发明简要地包括用于将外来基因稳定插入到细菌基因组中的转座子,其包含至少一个操纵子,所述操纵子具有编码选自由二甲酰基A, 细菌中的结构基因,一对倒置插入序列,插入序列内部的操纵子和位于插入序列外部的转座酶基因。 一种用于将外来基因转化到细菌基因组中的质粒穿梭载体,其包含至少一个具有编码选自下组的结构基因的操纵子:xylAxylB,araBAD和tal / tkt,至少一种用于表达 还提供了细菌中的结构基因和至少两个与待转染细菌基因组中的基因具有同源性的DNA片段。 根据本发明,转座子和穿梭载体可用于构建显着不同的运动发酵单胞菌菌株,其可用于使用传统发酵技术将纤维素衍生的戊糖转化为燃料和化学品,因为它们对于在 非选择介质。