Abstract:
The invention provides non-naturally occurring microbial organisms containing butadiene or 2,4- pentadienoate pathways comprising at least one exogenous nucleic acid encoding a butadiene or 2,4-pentadienoate pathway enzyme expressed in a sufficient amount to produce butadiene or 2,4-pentadienoate. The organism can further contain a hydrogen synthesis pathway. The invention additionally provides methods of using such microbial organisms to produce butadiene or 2,4-pentadienoate by culturing a non-naturally occurring microbial organism containing butadiene or 2,4-pentadienoate pathways as described herein under conditions and for a sufficient period of time to produce butadiene or 2,4-pentadienoate. Hydrogen can be produced together with the production of butadiene or 2,4- pentadienoate.
Abstract:
Provided herein is a non-naturally occurring microbial organism (NNOMO) having a methanol metabolic pathway (MMP) that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as 1,2-propanediol (1,2-PDO), n- propanol (n-PrOH), 1,3-propanediol (1,3-PDO) or glycerol. Also provided herein are methods for using such an organism to produce 1,2-PDO, n-PrOH, 1,3-PDO or glycerol.
Abstract:
The invention provides a non-naturally occurring microbial organism having a microbial organism having at least one exogenous gene insertion and/or one or more gene disruptions that confer production of primary alcohols and at least one exogenous nucleic acid that encodes an enzyme that increases the yields of the primary alcohol by (i) enhancing carbon fixation via the reductive TCA cycle, and/or (ii) accessing additional reducing equivalents from gaseous carbon sources and/or syngas components such as CO, C02, and/or H2. A method for producing long chain alcohols includes culturing these non-naturally occurring microbial organisms.
Abstract:
Provided herein is a non-naturally occurring microbial organism having a 1,3-butanediol (1,3 -BDO) pathway and comprising at least one exogenous nucleic acid encoding a 1,3 -BDO pathway enzyme expressed in a sufficient amount to produce 1,3 -BDO. In some embodiments, the pathway includes reducing equivalents from CO or hydrogen. In certain embodiments, a 1,3-BDO pathway proceeds by way of central metabolites pyruvate, succinate or alpha-ketoglutarate. Also provided herein is 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.
Abstract:
The invention provides a non-naturally occurring microbial organism having a methacrylic acid, methacrylate ester, 3-hydroxyisobutyrate and/or 2-hydroxyisobutyrate pathway. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in a methacrylic acid pathway. The invention additionally provides a method for producing methacrylic acid, methacrylate ester, 3-hydroxyisobutyrate and/or 2- hydroxyisobutyrate. The method can include culturing methacrylic acid, methacrylate ester, 3-hydroxyisobutyrate and/or 2-hydroxyisobutyrate producing microbial organism, where the microbial organism expresses at least one exogenous nucleic acid encoding a methacrylic acid pathway enzyme in a sufficient amount to produce methacrylic acid, methacrylate ester, 3-hydroxyisobutyrate and/or 2-hydroxyisobutyrate, under conditions and for a sufficient period of time to produce methacrylic acid, methacrylate ester, 3-hydroxyisobutyrate and/or 2-hydroxyisobutyrate.
Abstract:
The invention provides non-naturally occurring microbial organisms having a toluene, benzene, p-toluate, terephthalate, (2-hydroxy-3-methyl-4-oxobutoxy)phosphonate, (2-hydroxy-4-oxobutoxy)phosphonate, benzoate, styrene, 2,4-pentadienoate, 3-butene-lol or 1,3-butadiene pathway. The invention additionally provides methods of using such organisms to produce toluene, benzene, p-toluate, terephthalate, (2-hydroxy-3-methyl-4- oxobutoxy)phosphonate, (2-hydroxy-4-oxobutoxy)phosphonate, benzoate, styrene, 2,4- pentadienoate, 3-butene-lol or 1,3-butadiene.
Abstract:
The invention provides non-naturally occurring microbial organisms comprising a 1,4- butanediol (BDO), 4-hydroxybutyryl-CoA, 4-hydroxybutanal or putrescine pathway comprising at least one exogenous nucleic acid encoding a BDO, 4-hydroxybutyryl-CoA, 4-hydroxybutanal or putrescine pathway enzyme expressed in a sufficient amount to produce BDO, A- hydroxybutyryl-CoA, 4-hydroxybutanal or putrescine and further optimized for expression of BDO. The invention additionally provides methods of using such microbial organisms to produce BDO, 4-hydroxybutyryl-CoA, 4-hydroxybutanal or putrescine.
Abstract:
The invention provides non-naturally occurring microbial organisms comprising a 1,4-butanediol (BDO) pathway comprising at least one exogenous nucleic acid encoding a BDO pathway enzyme expressed in a sufficient amount to produce BDO and further optimized for expression of BDO. The invention additionally provides methods of using such microbial organisms to produce BDO.
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-l- carboxylate decarboxylase and an enzyme selected from a 2-ketocyclohexane-l-carboxyl-CoA hydrolase (acting on thioester), a 2-ketocyclohexane-l -carboxyl-CoA transferase, and a 2- ketocyclohexane-1-carboxyl-CoA synthetase. A pathway includes an enzyme selected from a 6- ketocyclohex-1-ene-l-carboxyl-CoA hydrolase (acting on C-C bond), a 6-ketocyclohex- 1 -ene- 1 - carboxyl-CoA synthetase, a 6-ketocyclohex-l-ene-l-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-l-carboxyl-CoA synthetase, a 2-ketocyclohexane-l -carboxyl-CoA transferase, a 2-ketocyclohexane-l-carboxyl-CoA hydrolase (acting on thioester), a 2-ketocyclohexane-l -carboxylate decarboxylase, and a cyclohexanone dehydrogenase. A pathway includes an adipate semialdehyde dehydratase, a cyclohexane-1,2- diol dehydrogenase, and a cyclohexane-l,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:
The invention provides non-naturally occurring microbial organisms having a formaldehyde fixation pathway, a formate assimilation pathway, and/or a methanol metabolic pathway in combination with a fatty alcohol, fatty aldehyde, fatty acid or isopropanol pathway, wherein the microbial organisms selectively produce a fatty alcohol, fatty aldehyde or fatty acid of a specified length or isopropanol. The microbial organisms provided advantageously enhance the production of substrates and/or pathway intermediates for the production of chain length specific fatty alcohols, fatty aldehydes, fatty acids or isopropanol. In some aspects, the microbial organisms of the invention have select gene disruptions or enzyme attenuations that increase production of fatty alcohols, fatty aldehydes or fatty acids. The invention additionally provides methods of using the above microbial organisms to produce a fatty alcohol, a fatty aldehyde, a fatty acid or isopropanol.