Abstract:
The invention provides non-naturally occurring microbial organisms comprising 1,4- butanediol (14-BDO) and gamma-butyrolactone (GBL) pathways comprising at least one exogenous nucleic acid encoding a 14-BDO and GBL pathway enzyme expressed in a sufficient amount to produce 14-BDO and GBL. The invention additionally provides methods of using such microbial organisms to produce 14-BDO and GBL.
Abstract:
The invention provides a non-naturally occurring microbial organism having n-propanol and isopropanol pathways, 1,4-butanediol (14-BDO) and isopropanol pathways, 1,3-butanediol (13- BDO) and isopropanol pathways or methylacrylic acid (MAA) and isopropanolpathways. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in each of the respective n-propanol, 14-BDO, 13-BDO or MAA and isopropanol pathways. The invention additionally provides a method for co-producing n-propanol and isopropanol, 14-BDO and isopropanol, 13-BDO and isopropanol or MAA and isopropanol. The method can include culturing an n-propanol and an isopropanol co-producing microbial organism, where the microbial organism expresses at least one exogenous nucleic acid encoding an n-propanol, an isopropanol, a 14-BDO, a 13-BDO and/or a MAA pathway enzyme in a sufficient amount to produce each of the respective products, under conditions and for a sufficient period of time to produce each of the respective products.
Abstract:
The invention provides a non-naturally occurring microbial organism having a 6- aminocaproic acid, caprolactam, hexametheylenediamine or levulinic acid pathway. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in the respective 6-aminocaproic acid, caprolactam, hexametheylenediamine or levulinic acid pathway. The invention additionally provides a method for producing 6-aminocaproic acid, caprolactam, hexametheylenediamine or levulinic acid. The method can include culturing a 6-aminocaproic acid, caprolactam or hexametheylenediamine producing microbial organism, where the microbial organism expresses at least one exogenous nucleic acid encoding a 6-aminocaproic acid, caprolactam, hexametheylenediamine or levulinic acid pathway enzyme in a sufficient amount to produce the respective product, under conditions and for a sufficient period of time to produce 6-aminocaproic acid, caprolactam, hexametheylenediamine or levulinic acid.
Abstract:
The invention provides a non-naturally occurring microbial organism having a 2- hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid pathway. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in a 2- hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid pathway. The invention additionally provides a method for producing 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid. The method can include culturing a 2-hydroxyisobutyric acid, 3- hydroxyisobutyric acid or methacrylic acid producing microbial organism expressing at least one exogenous nucleic acid encoding a 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid pathway enzyme in a sufficient amount and culturing under conditions and for a sufficient period of time to produce 2-hydroxyisobutyric acid, 3-hydroxyisobutyric acid or methacrylic acid.
Abstract:
Provided herein are non-naturally occurring microbial organisms having biosynthetic pathways for production of target products and one or more genetic modifications that reduce a byproduct of the biosynthetic pathway. Compositions of target products from such cells and methods of using such cells are provided.
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 3-hydroxyisobutyrate (3-HIB) or methacrylic acid (MAA). Also provided herein are methods for using such an organism to produce 3-HIB or MAA.
Abstract:
The invention provides a non-naturally occurring microbial organism containing an ethylene glycol pathway, wherein the pathway includes at least one exogenous nucleic acid encoding an ethylene glycol pathway enzyme expressed in a sufficient amount to produce ethylene glycol. The non-naturally occurring microorganisms of the invention can express exogenous nucleic acids that catalyze the fixation of C02 or CO to ethylene glycol. The microorganisms of the invention can further include enzymes to generate energy and reducing equivalents from methanol, syngas and other gaseous sources. The invention additionally provides methods of using such microbial organisms to produce ethylene glycol, by culturing a non-naturally occurring microbial organism containing an ethylene glycol pathway under conditions and for a sufficient period of time to produce ethylene glycol.
Abstract:
Non-naturally occurring microbial organisms are disclosed containing an alkene pathway having at least one exogenous nucleic acid encoding an alkene pathway enzyme expressed in a sufficient amount to convert an alcohol to an alkene. The disclosure additionally provides methods of using such microbial organisms to produce an alkene, by culturing a non-naturally occurring microbial organism containing an alkene pathway as described herein under conditions and for a sufficient period of time to produce an alkene.
Abstract:
Provided herein is a non-naturally occurring microbial organism having an isopropanol pathway and comprising at least one exogenous nucleic acid encoding an isopropanol pathway enzyme. In certain embodiments, the pathway includes an enzyme selected from a 4-hydroxybutyryl-CoA dehydratase, a crotonase, a 3-hydroxybutyryl-CoA dehydrogenase, an acetoacetyl-CoA synthetase, an acetyl-CoA:acetoacetate-CoA transferase, an acetoacetyl-CoA hydrolase, an acetoacetate decarboxylase, and an acetone reductase. Also provided herein is anon-naturally occurring microbial organism having an n -butanol pathway and comprising at least one exogenous nucleic acid encoding an n -butanol pathway enzyme. Other non-naturally occurring microbial organism having n -butanol or isobutanol pathways are also provided herein. In certain embodiments, isobutanol pathways utilizing reverse TCA and/or reducing equivalents from CO and/or hydrogen are used to enhance product yields. The organisms provided herein can be cultured to produce isopropanol, n -butanol, or isobutanol.
Abstract:
Provided herein is a non-naturally occurring microbial organism having a reductive TCA or Wood-Ljungdahl pathway and comprising at least one exogenous nucleic acid encoding said pathway enzymes expressed in a sufficient amount to enhance carbon flux through acetyl-CoA. Also provided herein is a method for enhancing carbon flux through acetyl-CoA and in some embodiments includes culturing these 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 provided herein 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. Also provided herein is a method for enhancing the availability of reducing equivalents in the presence of carbon monoxide or hydrogen, and can include culturing this organism for a sufficient period of time to produce a product.