Methods for increasing product yields

    公开(公告)号:US10087470B2

    公开(公告)日:2018-10-02

    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.

    Organisms for the production of 1,3-butanediol

    公开(公告)号:US09708632B2

    公开(公告)日:2017-07-18

    申请号:US14673600

    申请日:2015-03-30

    Abstract: A non-naturally occurring microbial organism includes a microbial organism having a 1,3-butanediol (1,3-BDO) pathway having at least one exogenous nucleic acid encoding a 1,3-BDO pathway enzyme expressed in a sufficient amount to produce 1,3-BDO. The pathway includes an enzyme selected from a 2-amino-4-ketopentanoate (AKP) thiolase, an AKP dehydrogenase, a 2-amino-4-hydroxypentanoate aminotransferase, a 2-amino-4-hydroxypentanoate oxidoreductase (deaminating), a 2-oxo-4-hydroxypentanoate decarboxylase, a 3-hydroxybutyraldehyde reductase, an AKP aminotransferase, an AKP oxidoreductase (deaminating), a 2,4-dioxopentanoate decarboxylase, a 3-oxobutyraldehyde reductase (ketone reducing), a 3-oxobutyraldehyde reductase (aldehyde reducing), a 4-hydroxy-2-butanone reductase, an AKP decarboxylase, a 4-aminobutan-2-one aminotransferase, a 4-aminobutan-2-one oxidoreductase (deaminating), a 4-aminobutan-2-one ammonia-lyase, a butenone hydratase, an AKP ammonia-lyase, an acetylacrylate decarboxylase, an acetoacetyl-CoA reductase (CoA-dependent, aldehyde forming), an acetoacetyl-CoA reductase (CoA-dependent, alcohol forming), an acetoacetyl-CoA reductase (ketone reducing), a 3-hydroxybutyryl-CoA reductase (aldehyde forming), a 3-hydroxybutyryl-CoA reductase (alcohol forming), a 4-hydroxybutyryl-CoA dehydratase, and a crotonase. A method for producing 1,3-BDO, includes culturing such microbial organisms under conditions and for a sufficient period of time to produce 1,3-BDO.

    Organisms for the production of cyclohexanone
    120.
    发明授权
    Organisms for the production of cyclohexanone 有权
    用于生产环己酮的生物体

    公开(公告)号:US09139853B2

    公开(公告)日:2015-09-22

    申请号:US14172079

    申请日:2014-02-04

    CPC classification number: C12P7/26 C12N9/16 C12N9/88 C12N9/93 C12N15/52 C12N15/70

    Abstract: A non-naturally occurring microbial organism has cyclohexanone pathways that include at least one exogenous nucleic acid encoding a cyclohexanone pathway enzyme. A pathway includes a 2-ketocyclohexane-1-carboxyl-CoA hydrolase (acting on C—C bond), a 2-ketocyclohexane-1-carboxylate decarboxylase and an enzyme selected from a 2-ketocyclohexane-1-carboxyl-CoA hydrolase (acting on thioester), a 2-ketocyclohexane-1-carboxyl-CoA transferase, and a 2-ketocyclohexane-1-carboxyl-CoA synthetase. A pathway includes an enzyme selected from a 6-ketocyclohex-1-ene-1-carboxyl-CoA hydrolase (acting on C—C bond), a 6-ketocyclohex-1-ene-1-carboxyl-CoA synthetase, a 6-ketocyclohex-1-ene-1-carboxyl-CoA hydrolase (acting on thioester), a 6-ketocyclohex-1-ene-1-carboxyl-CoA transferase, a 6-ketocyclohex-1-ene-1-carboxyl-CoA reductase, a 6-ketocyclohex-1-ene-1-carboxylate decarboxylase, a 6-ketocyclohex-1-ene-1-carboxylate reductase, a 2-ketocyclohexane-1-carboxyl-CoA synthetase, a 2-ketocyclohexane-1-carboxyl-CoA transferase, a 2-ketocyclohexane-1-carboxyl-CoA hydrolase (acting on thioester), a 2-ketocyclohexane-1-carboxylate decarboxylase, and a cyclohexanone dehydrogenase. A pathway includes an adipate semialdehyde dehydratase, a cyclohexane-1,2-diol dehydrogenase, and a cyclohexane-1,2-diol dehydratase. A pathway includes a 3-oxopimelate decarboxylase, a 4-acetylbutyrate dehydratase, a 3-hydroxycyclohexanone dehydrogenase, a 2-cyclohexenone hydratase, a cyclohexanone dehydrogenase and an enzyme selected from a 3-oxopimeloyl-CoA synthetase, a 3-oxopimeloyl-CoA hydrolase (acting on thioester), and a 3-oxopimeloyl-coA transferase. Each these pathways can include a PEP carboxykinase. A method for producing cyclohexanone includes culturing these non-naturally occurring microbial organisms.

    Abstract translation: 非天然存在的微生物有机体具有包含至少一种编码环己酮途径酶的外源核酸的环己酮途径。 途径包括2-酮环己烷-1-羧基-CoA水解酶(作用于C-C键),2-酮环己烷-1-羧酸脱羧酶和选自2-酮环己烷-1-羧基-CoA水解酶的酶(作用 在硫酯上),2-酮环己烷-1-羧基-CoA转移酶和2-酮环己烷-1-羧基-CoA合成酶。 途径包括选自6-酮环己-1-烯-1-羧基-CoA水解酶(作用于C-C键)的酶,6-酮环己-1-烯-1-羧基-CoA合成酶,6- 酮酮环己-1-烯-1-羧基-CoA水解酶(作用于硫酯),6-酮环己-1-烯-1-羧基-CoA转移酶,6-酮环己-1-烯-1-羧基-CoA还原酶, 6-酮环己-1-烯-1-羧酸脱羧酶,6-酮环己-1-烯-1-羧酸还原酶,2-酮环己烷-1-羧基-CoA合成酶,2-酮环己烷-1-羧基-CoA 转移酶,2-酮环己烷-1-羧基-CoA水解酶(作用于硫酯),2-酮环己烷-1-羧酸脱羧酶和环己酮脱氢酶。 途径包括己二酸半醛脱水酶,环己烷-1,2-二醇脱氢酶和环己烷-1,2-二醇脱水酶。 途径包括3-氧代邻苯二甲酸脱羧酶,4-乙酰基丁酸脱水酶,3-羟基环己酮脱氢酶,2-环己烯酮水合酶,环己酮脱氢酶和选自3-氧代木糖酰辅酶A合成酶,3-氧代木糖酰-CoA水解酶 (作用于硫酯)和3-氧代木糖酰辅酶A转移酶。 每个这些途径可以包括PEP羧基激酶。 生产环己酮的方法包括培养这些非天然存在的微生物。

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