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    • 6. 发明申请
    • METHOD FOR PRODUCTION OF POLYLACTATE USING RECOMBINANT MICROORGANISM
    • 使用重组微生物生产聚乙烯的方法
    • US20110212497A1
    • 2011-09-01
    • US13126157
    • 2009-10-27
    • Shusei ObataHiromi KambeMasakazu ItoTakashi ShimamuraKatsunori KohdaSeiichi Taguchi
    • Shusei ObataHiromi KambeMasakazu ItoTakashi ShimamuraKatsunori KohdaSeiichi Taguchi
    • C12P7/62C12N1/00
    • C12P7/62C12N9/1029
    • It is an object of the present invention to provide a method for efficiently producing a polylactate via microbial fermentation with the use of a sugar as a starting material.The method is a method for producing a polylactate, which comprises the steps of: (1) culturing a recombinant microorganism having a protein capable of catalyzing a reaction of transferring CoA to propionic acid and/or lactate and a protein capable of catalyzing a reaction of polyhydroxyalkanoate synthesis consisting of the following amino acid sequence (a) or (b) in a medium containing a carbon source: (a) an amino acid sequence derived from the amino acid sequence shown in SEQ ID NO: 2 by substitution of at least one of the amino acids at positions 130, 325, 477, and 481 with different amino acid(s); or (b) an amino acid sequence derived from the protein specified in (a) by additional deletion or substitution of one or several amino acid(s) other than the amino acids at positions 130, 325, 477, and 481 or by insertion of one or several amino acid residue(s); and (2) collecting the polylactate from the culture product obtained in step (1).
    • 本发明的目的是提供一种利用糖作为起始原料通过微生物发酵有效生产聚乳酸的方法。 该方法是制备聚乳酸的方法,其包括以下步骤:(1)培养具有能够催化将CoA转移到丙酸和/或乳酸的反应的蛋白质的蛋白质和能够催化反应的蛋白质的重组微生物 在含有碳源的培养基中由以下氨基酸序列(a)或(b)组成的聚羟基链烷酸酯合成物:(a)通过至少一个取代至少一个氨基酸序列的氨基酸序列,所述氨基酸序列来自SEQ ID NO:2所示的氨基酸序列 的具有不同氨基酸的位置130,325,477和481处的氨基酸; 或(b)衍生自(a)中规定的蛋白质的氨基酸序列,通过除了位置130,325,477和481之外的氨基酸以外的一个或几个氨基酸的另外缺失或取代,或通过插入 一个或几个氨基酸残基; 和(2)从步骤(1)获得的培养产物中收集聚乳酸。
    • 7. 发明授权
    • Method for production of polylactate using recombinant microorganism
    • 使用重组微生物生产聚乳酸的方法
    • US08748137B2
    • 2014-06-10
    • US13126157
    • 2009-10-27
    • Shusei ObataHiromi KambeMasakazu ItoTakashi ShimamuraKatsunori KohdaSeiichi Taguchi
    • Shusei ObataHiromi KambeMasakazu ItoTakashi ShimamuraKatsunori KohdaSeiichi Taguchi
    • C12P7/62C12N9/00C12N9/10C12N1/20C12N15/00C07H21/04
    • C12P7/62C12N9/1029
    • It is an object of the present invention to provide a method for efficiently producing a polylactate via microbial fermentation with the use of a sugar as a starting material.The method is a method for producing a polylactate, which comprises the steps of: (1) culturing a recombinant microorganism having a protein capable of catalyzing a reaction of transferring CoA to propionic acid and/or lactate and a protein capable of catalyzing a reaction of polyhydroxyalkanoate synthesis consisting of the following amino acid sequence (a) or (b) in a medium containing a carbon source: (a) an amino acid sequence derived from the amino acid sequence shown in SEQ ID NO: 2 by substitution of at least one of the amino acids at positions 130, 325, 477, and 481 with different amino acid(s); or (b) an amino acid sequence derived from the protein specified in (a) by additional deletion or substitution of one or several amino acid(s) other than the amino acids at positions 130, 325, 477, and 481 or by insertion of one or several amino acid residue(s); and (2) collecting the polylactate from the culture product obtained in step (1).
    • 本发明的目的是提供一种利用糖作为起始原料通过微生物发酵有效生产聚乳酸的方法。 该方法是制备聚乳酸的方法,其包括以下步骤:(1)培养具有能够催化将CoA转移到丙酸和/或乳酸的反应的蛋白质的蛋白质和能够催化反应的蛋白质的重组微生物 在含有碳源的培养基中由以下氨基酸序列(a)或(b)组成的聚羟基链烷酸酯合成物:(a)通过至少一个取代至少一个氨基酸序列的氨基酸序列,所述氨基酸序列来自SEQ ID NO:2所示的氨基酸序列 的具有不同氨基酸的位置130,325,477和481处的氨基酸; 或(b)衍生自(a)中规定的蛋白质的氨基酸序列,通过除了位置130,325,477和481之外的氨基酸以外的一个或几个氨基酸的另外缺失或取代,或通过插入 一个或几个氨基酸残基; 和(2)从步骤(1)获得的培养产物中收集聚乳酸。