Micro-organisms for the production of 1,2-propanediol obtained by a combination of evolution and rational design
    21.
    发明授权
    Micro-organisms for the production of 1,2-propanediol obtained by a combination of evolution and rational design 有权
    用于生产1,2-丙二醇的微生物通过进化和合理设计的组合而获得

    公开(公告)号:US08298807B2

    公开(公告)日:2012-10-30

    申请号:US12532405

    申请日:2008-03-21

    IPC分类号: C12N1/20 C12Q1/68 C07H21/04

    摘要: The present invention concerns a new method combining evolution and rational design for the preparation of a strain of micro-organism for the production of 1,2-propanediol from a carbon source. The said method comprises growing an initial strain under selection pressure in an appropriate growth medium, said initial bacterial strain comprising an attenuation of the expression of the tpiA gene and an attenuation the expression of at least one gene involved in the conversion of methylglyoxal to lactate, in order to promote evolution in said initial strain; then selecting and isolating the evolved strain having an increased 1,2 propanediol production rate; then reconstructing a functional tpiA gene in the evolved strain. The present invention also concerns the evolved strain such as obtained, that may be furthermore genetically modified in order to optimize the conversion of a carbon source into 1,2-propanediol without bv-products and with the best possible yield.

    摘要翻译: 本发明涉及一种组合进化和合理设计的新方法,用于制备用于从碳源生产1,2-丙二醇的微生物菌株。 所述方法包括在选择压力下在合适的生长培养基中生长初始菌株,所述初始细菌菌株包括tpiA基因表达的减弱和减少甲基乙二醛转化为乳酸盐的至少一个基因的表达, 以促进所述初始应变的演化; 然后选择和分离具有增加的1,2-丙二醇生产速率的进化菌株; 然后在演化菌株中重建功能性tpiA基因。 本发明还涉及所获得的进化菌株,其可以进一步进行基因修饰,以便优化碳源转化为1,2-丙二醇而不产生乙腈产物并且以最好的产率。

    Process for chromosomal integration and DNA sequence replacement in Clostridia
    22.
    发明授权
    Process for chromosomal integration and DNA sequence replacement in Clostridia 有权
    梭菌染色体整合和DNA序列置换的过程

    公开(公告)号:US08168434B2

    公开(公告)日:2012-05-01

    申请号:US11737025

    申请日:2007-04-18

    IPC分类号: C12N15/74 C12N1/21

    CPC分类号: C12N15/74

    摘要: The present invention is related to a new method for replacing or deleting DNA sequences in Clostridia, with high efficiency, easy to perform and applicable at an industrial level. This method is useful to modify several genetic loci in Clostridia in a routine manner. This method is based on a replicative vector carrying at least two marker genes.

    摘要翻译: 本发明涉及一种用于在梭菌中替代或缺失DNA序列的新方法,其在工业上具有高效率,易于实施和适用。 该方法可用于以常规方式修饰梭菌中的几个遗传基因座。 该方法基于携带至少两个标记基因的复制载体。

    NEW MICRO-ORGANISMS FOR THE PRODUCTION OF 1,2-PROPANEDIOL OBTAINED BY A COMBINATION OF EVOLUTION AND RATIONAL DESIGN
    24.
    发明申请
    NEW MICRO-ORGANISMS FOR THE PRODUCTION OF 1,2-PROPANEDIOL OBTAINED BY A COMBINATION OF EVOLUTION AND RATIONAL DESIGN 有权
    通过组合发展和合理设计获得的1,2-丙二醇的新微生物

    公开(公告)号:US20100285547A1

    公开(公告)日:2010-11-11

    申请号:US12532405

    申请日:2008-03-21

    IPC分类号: C12P7/18 C12N15/01

    摘要: The present invention concerns a new method combining evolution and rational design for the preparation of a strain of micro-organism for the production of 1,2-propanediol from a carbon source.The said method comprises: growing an initial strain under selection pressure in an appropriate growth medium, said initial bacterial strain comprising an attenuation of the expression of the tpiA gene and an attenuation the expression of at least one gene involved in the conversion of methylglyoxal to lactate, in order to promote evolution in said initial strain, then selecting and isolating the evolved strain having an increased 1,2 propanediol production rate, then reconstructing a functional tpiA gene in the evolved strain; The present invention also concerns the evolved strain such as obtained, that may be furthermore genetically modified in order to optimize the conversion of a carbon source into 1,2-propanediol without by-products and with the best possible yield.

    摘要翻译: 本发明涉及一种组合进化和合理设计的新方法,用于制备用于从碳源生产1,2-丙二醇的微生物菌株。 所述方法包括:在合适的生长培养基中在选择压力下生长初始菌株,所述初始细菌菌株包括tpiA基因表达的减弱和减少参与将甲基乙二醛转化为乳酸的至少一个基因的表达 为了促进所述初始菌株的进化,然后选择和分离具有增加的1,2-丙二醇生产速率的进化菌株,然后在演化菌株中重建功能性tpiA基因; 本发明还涉及如所获得的进化菌株,其可以进一步经遗传修饰以优化碳源转化为1,2-丙二醇而不产生副产物并以最好的产率。

    METABOLICALLY ENGINEERED MICROORGANISM USEFUL FOR THE PRODUCTION OF 1,2-PROPANEDIOL
    25.
    发明申请
    METABOLICALLY ENGINEERED MICROORGANISM USEFUL FOR THE PRODUCTION OF 1,2-PROPANEDIOL 审中-公开
    用于生产1,2-丙二醇的有代表性的工程微生物

    公开(公告)号:US20100261239A1

    公开(公告)日:2010-10-14

    申请号:US12532423

    申请日:2008-03-21

    IPC分类号: C12P7/18 C12N1/21

    CPC分类号: C12P7/18 C12N9/0008

    摘要: Microorganism useful for the production of 1,2-propanediol from a carbon source, wherein said microorganism is characterized by: an improved activity of the biosynthesis pathway from dihydroxyacetone phosphate to 1,2-propanediol, and an attenuated activity of the glyceraldehyde 3-phosphate dehydrogenase The invention is also related to a method for producing 1,2-propanediol by fermentation with a microorganism according to the invention.

    摘要翻译: 用于从碳源生产1,2-丙二醇的微生物,其中所述微生物的特征在于:从二羟丙基丙酮磷酸酯向1,2-丙二醇的生物合成途径的活性提高,甘油醛-3-磷酸酯的减毒活性 脱氢酶本发明还涉及通过用本发明的微生物发酵生产1,2-丙二醇的方法。

    Process for Chromosomal Integration and DNA Sequence Replacement in Clostridia
    26.
    发明申请
    Process for Chromosomal Integration and DNA Sequence Replacement in Clostridia 有权
    梭菌染色体整合和DNA序列替代的过程

    公开(公告)号:US20080085558A1

    公开(公告)日:2008-04-10

    申请号:US11737025

    申请日:2007-04-18

    IPC分类号: C12N15/74 C12N1/21

    CPC分类号: C12N15/74

    摘要: The present invention is related to a new method for replacing or deleting DNA sequences in Clostridia, with high efficiency, easy to perform and applicable at an industrial level. This method is useful to modify several genetic loci in Clostridia in a routine manner. This method is based on a replicative vector carrying at least two marker genes.

    摘要翻译: 本发明涉及一种用于在梭菌中替代或缺失DNA序列的新方法,其在工业上具有高效率,易于实施和适用。 该方法可用于以常规方式修饰梭菌中的几个遗传基因座。 该方法基于携带至少两个标记基因的复制载体。

    Recombinant microorganism for the fermentative production of methionine
    27.
    发明授权
    Recombinant microorganism for the fermentative production of methionine 有权
    用于发酵生产甲硫氨酸的重组微生物

    公开(公告)号:US09506093B2

    公开(公告)日:2016-11-29

    申请号:US14408378

    申请日:2012-06-18

    IPC分类号: C12P13/12 C12N9/10

    摘要: The present invention is related to a recombinant microorganism optimized for the fermentative production of methionine, wherein the activity of the cobalamin-independent methionine synthase MetE is attenuated in said microorganism. The invention is also related to a method for producing methionine by fermentation.

    摘要翻译: 本发明涉及针对甲硫氨酸的发酵生产而优化的重组微生物,其中所述微生物中不含钴胺素的甲硫氨酸合酶MetE的活性减弱。 本发明还涉及通过发酵生产甲硫氨酸的方法。

    Use of polypropylene glycol as a shrinkage-reducing additive in
dispersion powder compositions for construction materials
    28.
    发明授权
    Use of polypropylene glycol as a shrinkage-reducing additive in dispersion powder compositions for construction materials 失效
    在建筑材料的分散粉末组合物中使用聚丙二醇作为减缩添加剂

    公开(公告)号:US5498665A

    公开(公告)日:1996-03-12

    申请号:US344401

    申请日:1994-11-23

    摘要: The invention relates to the use of polypropylene glycol as a shrinkage-reducing additive in dispersion powder compositions for construction materials containinga) a base polymer from the group consisting of vinyl ester polymers, (meth)acrylate and/or styrene (co)polymers and vinyl chloride polymers, andb) eitherb1) 2 to 20% by weight, based on the base polymer, of polyvinyl alcohol having a degree of hydrolysis of 85 to 94 mol % and a Hoppler viscosity of 2 to 40 mPa.s orb2) 2 to 20% by weight, based on the base polymer, of alkali metal salts or alkaline earth metal salts of phenolsulfonic acid-formaldehyde condensation products, andc) 3 to 30% by weight, based on the total weight of polymeric components, of fine antiblocking agents, whereind) the content of polypropylene glycol is 1 to 20% by weight, based on the base polymer.

    摘要翻译: 本发明涉及聚丙二醇作为收缩减少添加剂在用于建筑材料的分散粉末组合物中的用途,该组合物含有:a)由乙烯基酯聚合物,(甲基)丙烯酸酯和/或苯乙烯(共)聚合物组成的组的基础聚合物,以及 氯乙烯聚合物,和b)b1)基于聚合物的基于聚合物的2〜20重量%的水解度为85〜94摩尔%的聚乙烯醇,Höppler粘度为2〜40mPa.s或b2 )基于所述基础聚合物的2-20重量%的酚磺酸 - 甲醛缩合产物的碱金属盐或碱土金属盐,和c)基于聚合物组分的总重量为3-30重量% 的抗静电剂,其中d)聚丙二醇的含量为基于聚合物的1至20重量%。

    Increasing methionine production by overexpressing succinate dehydrogenase
    29.
    发明授权
    Increasing methionine production by overexpressing succinate dehydrogenase 有权
    通过过量表达琥珀酸脱氢酶增加甲硫氨酸生产

    公开(公告)号:US09267160B2

    公开(公告)日:2016-02-23

    申请号:US13519507

    申请日:2009-12-30

    申请人: Rainer Figge

    发明人: Rainer Figge

    IPC分类号: C12P13/12

    摘要: The present invention relates to a process for improving the production of methionine by culturing a microorganism modified for enhancing the expression of genes involved in succinate dehydrogenase synthesis. The microorganisms were modified in a way that the methionine/carbon source yield is increased. The isolation of methionine from the fermentation medium is also claimed.

    摘要翻译: 本发明涉及通过培养用于增强参与琥珀酸脱氢酶合成的基因的表达而修饰的微生物来改善甲硫氨酸的生产的方法。 微生物以甲硫氨酸/碳源产量增加的方式进行了修饰。 还要求从发酵培养基中分离甲硫氨酸。

    MICROORGANISMS FOR 1,3-PROPANEDIOL PRODUCTION USING HIGH GLYCERINE CONCENTRATION
    30.
    发明申请
    MICROORGANISMS FOR 1,3-PROPANEDIOL PRODUCTION USING HIGH GLYCERINE CONCENTRATION 审中-公开
    使用高甘油浓度的1,3-丙二醇生产的微生物

    公开(公告)号:US20130177956A1

    公开(公告)日:2013-07-11

    申请号:US13823709

    申请日:2011-11-10

    申请人: Rainer Figge

    发明人: Rainer Figge

    IPC分类号: C12N15/74

    摘要: The present invention is related to a population of Clostridium acetobutylicum useful for the production of 1,3-propanediol (PDO), wherein said population comprises at least one strain of a Clostridium acetobutylicum sp. comprising mutations selected among the mutations identified in table 1, wherein relative percentages of said mutations are selected among specific genes.

    摘要翻译: 本发明涉及可用于生产1,3-丙二醇(PDO)的丙酮丁醇梭菌的群体,其中所述群体包含至少一种丙酮丁醇梭菌菌株。 包括选自表1中鉴定的突变中的突变,其中所述突变的相对百分比选自具体基因。