METHODS FOR INCREASING PRODUCT YIELDS
    12.
    发明申请
    METHODS FOR INCREASING PRODUCT YIELDS 审中-公开
    增加产品线的方法

    公开(公告)号:US20160145652A1

    公开(公告)日:2016-05-26

    申请号:US14806435

    申请日:2015-07-22

    Abstract: A non-naturally occurring microbial organism includes a microbial organism having a reductive TCA or Wood-Ljungdahl pathway in which at least one exogenous nucleic acid encoding these pathway enzymes is expressed in a sufficient amount to enhance carbon flux through acetyl-CoA. A method for enhancing carbon flux through acetyl-CoA includes culturing theses non-naturally occurring microbial organisms under conditions and for a sufficient period of time to produce a product having acetyl-CoA as a building block. Another non-naturally occurring microbial organism includes at least one exogenous nucleic acid encoding an enzyme expressed in a sufficient amount to enhance the availability of reducing equivalents in the presence of carbon monoxide or hydrogen, thereby increasing the yield of redox-limited products via carbohydrate-based carbon feedstock. A method for enhancing the availability of reducing equivalents in the presence of carbon monoxide or hydrogen includes culturing this organism for a sufficient period of time to produce a product.

    Abstract translation: 非天然存在的微生物体包括具有还原性TCA或Wood-Ljungdahl途径的微生物生物体,其中至少一种编码这些途径酶的外源核酸以足够的量表达以增强通过乙酰辅酶A的碳通量。 通过乙酰辅酶A增强碳通量的方法包括在条件和足够的时间段内培养这些非天然存在的微生物,以产生具有乙酰辅酶A作为结构单元的产物。 另一种非天然存在的微生物生物体包括至少一种编码以足够量表达的酶的外源核酸,以增强在一氧化碳或氢气存在下还原当量的可用性,从而通过碳水化合物 - 碳原料。 在一氧化碳或氢气存在下增强还原当量的可用性的方法包括在足够的时间内培养该生物体以产生产物。

    METHODS FOR INCREASING PRODUCT YIELDS
    15.
    发明申请

    公开(公告)号:US20190264242A1

    公开(公告)日:2019-08-29

    申请号:US16137264

    申请日:2018-09-20

    Abstract: A non-naturally occurring microbial organism includes a microbial organism having a reductive TCA or Wood-Ljungdahl pathway in which at least one exogenous nucleic acid encoding these pathway enzymes is expressed in a sufficient amount to enhance carbon flux through acetyl-CoA. A method for enhancing carbon flux through acetyl-CoA includes culturing theses non-naturally occurring microbial organisms under conditions and for a sufficient period of time to produce a product having acetyl-CoA as a building block. Another non-naturally occurring microbial organism includes at least one exogenous nucleic acid encoding an enzyme expressed in a sufficient amount to enhance the availability of reducing equivalents in the presence of carbon monoxide or hydrogen, thereby increasing the yield of redox-limited products via carbohydrate-based carbon feedstock. A method for enhancing the availability of reducing equivalents in the presence of carbon monoxide or hydrogen includes culturing this organism for a sufficient period of time to produce a product.

    COMPOSITIONS AND METHODS FOR THE BIOSYNTHESIS OF 1,4-BUTANEDIOL AND ITS PRECURSORS
    19.
    发明申请
    COMPOSITIONS AND METHODS FOR THE BIOSYNTHESIS OF 1,4-BUTANEDIOL AND ITS PRECURSORS 审中-公开
    1,4-丁二醇及其前体的生物合成的组合物和方法

    公开(公告)号:US20150368676A1

    公开(公告)日:2015-12-24

    申请号:US14603174

    申请日:2015-01-22

    Abstract: The invention provides a non-naturally occurring microbial biocatalyst including a microbial organism having a 4-hydroxybutanoic acid (4-HB) biosynthetic pathway having at least one exogenous nucleic acid encoding 4-hydroxybutanoate dehydrogenase, succinyl-CoA synthetase, CoA-dependent succinic semialdehyde dehydrogenase, or α-ketoglutarate decarboxylase, wherein the exogenous nucleic acid is expressed in sufficient amounts to produce monomeric 4-hydroxybutanoic acid (4-HB). Also provided is a non-naturally occurring microbial biocatalyst including a microbial organism having 4-hydroxybutanoic acid (4-HB) and 1,4-butanediol (BDO) biosynthetic pathways, the pathways include at least one exogenous nucleic acid encoding 4-hydroxybutanoate dehydrogenase, succinyl-CoA synthetase, CoA-dependent succinic semialdehyde dehydrogenase, 4-hydroxybutyrate:CoA transferase, 4-butyrate kinase, phosphotransbutyrylase, α-ketoglutarate decarboxylase, aldehyde dehydrogenase, alcohol dehydrogenase or an aldehyde/alcohol dehydrogenase, wherein the exogenous nucleic acid is expressed in sufficient amounts to produce 1,4-butanediol (BDO). Additionally provided are methods for the production of 4-HB and BDO.

    Abstract translation: 本发明提供了一种非天然存在的微生物生物催化剂,其包括具有4-羟基丁酸(4-HB)生物合成途径的微生物生物,其具有至少一种编码4-羟基丁酸脱氢酶的外源核酸,琥珀酰辅酶A合成酶,CoA依赖性琥珀酸半醛 脱氢酶或α-酮戊二酸脱羧酶,其中外源核酸以足够的量表达以产生单体4-羟基丁酸(4-HB)。 还提供了非天然存在的微生物生物催化剂,其包括具有4-羟基丁酸(4-HB)和1,4-丁二醇(BDO)生物合成途径的微生物生物,该途径包括至少一种编码4-羟基丁酸脱氢酶的外源核酸 ,琥珀酰辅酶A合成酶,CoA依赖性琥珀酸半醛脱氢酶,4-羟基丁酸酯:CoA转移酶,4-丁酸酯激酶,磷酸转移酶,α-酮戊二酸脱羧酶,醛脱氢酶,醇脱氢酶或醛/醇脱氢酶,其中外源核酸为 以足够的量表示产生1,4-丁二醇(BDO)。 另外提供了用于生产4-HB和BDO的方法。

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