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.
Abstract:
The invention provides non-naturally occurring microbial organisms having a 4- hydroxybutyrate, 1,4-butanediol, or other product pathway and being capable of producing 4- hydroxybutyrate, 1,4-butanediol, or other product, wherein the microbial organism comprises one or more genetic modifications. The invention additionally provides methods of producing 4- hydroxybutyrate, 1,4-butanediol, or other product or related products using the microbial organisms.
Abstract:
Provided herein are non-naturally occurring eukaryotic organisms that can be engineered to produce and increase the availability of cytosolic acetyl-CoA. Also provided herein are non- naturally occurring eukaryotic organisms having a 1,3-butanediol (1,3-BDO) pathway, and methods of using such organisms to produce 1,3-BDO.
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 precursor. 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:
The invention provides non-naturally occurring microbial organisms having a butadiene or crotyl alcohol pathway. The invention additionally provides methods of using such organisms to produce butadiene or crotyl alcohol.
Abstract:
A non-naturally occurring microbial organism having a 1,3-butanediol (1,3-BDO) pathway includes at least one exogenous nucleic acid encoding a 1,3-BDO pathway enzyme or protein expressed in a sufficient amount to produce 1,3-BDO. A method for producing 1,3-BDO that includes culturing the this non-naturally occurring microbial organism under conditions and for a sufficient period of time to produce 1,3-BDO.
Abstract:
A non-naturally occurring eukaryotic or prokaryotic organism includes one or more gene disruptions occurring in genes encoding enzymes imparting increased fumarate, malate or acrylate production in the organism when the gene disruption reduces an activity of the enzyme. The one or more gene disruptions confers increased production of acrylate onto the organism. Organisms that produce acrylate have an acrylate pathway that at least one exogenous nucleic acid encoding an acrylate pathway enzyme expressed in a sufficient amount to produce acrylate, the acrylate pathway comprising a decarboxylase. Methods of producing fumarate, malate or acrylate include culturing these organisms.
Abstract:
The invention provides a method of producing acrylic acid. The method includes contacting fumaric acid with a sufficient amount of ethylene in the presence of a cross-metathesis transformation catalyst to produce about two moles of acrylic acid per mole of fumaric acid. Also provided is an acrylate ester. The method includes contacting fumarate diester with a sufficient amount of ethylene in the presence of a cross-metathesis transformation catalyst to produce about two moles of acrylate ester per mole of fumarate diester. An integrated process for process for producing acrylic acid or acrylate ester is provided which couples bioproduction of fumaric acid with metathesis transformation. An acrylic acid and an acrylate ester production also is provided.
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:
The invention provides a non-naturally occurring microbial organism having a butadiene, crotyl alcohol, 2,4-pentadienoate, 3-buten-2-ol, or 3-buten-1-ol, pathway. The microbial organism contains at least one exogenous nucleic acid encoding an enzyme in a pathway. The invention additionally provides a method for producing butadiene, crotyl alcohol, 2,4-pentadienoate, 3-buten-2-ol, or 3-buten-1-ol,. The method can include culturing a butadiene, crotyl alcohol, 2,4-pentadienoate, 3-buten-2-ol, or 3-buten-1-ol-producing microbial organism, where the microbial organism expresses at least one exogenous nucleic acid encoding a pathway enzyme in a sufficient amount, and under conditions and for a sufficient period of time to produce butadiene, crotyl alcohol, 2,4-pentadienoate, 3-buten-2-ol, or 3-buten-1-ol.