Patent classifications
C12Y401/02043
COMPOSITIONS AND METHODS FOR INDOOR AIR REMEDIATION
The present disclosure provides compositions, methods of use, and methods of creation for a population of transgenic plants derived from plant cells transformed with recombinant DNA for expression of heterologous proteins. In particular, the present disclosure provides compositions comprising indoor ornamental plants suited for the removal of volatile organic compounds such as formaldehyde, benzene, toluene, ethylbenzene and/or xylene from air. Also disclosed are transgenic seeds for growing a transgenic plant having the recombinant DNA in its genome and exhibiting enhanced VOC removal from air. Also disclosed are methods for generating seed and plants based on the transgenic events. Also disclosed are microbes selected for during directed evolution to have enhanced VOC removal from air capabilities. Also disclosed are methods and compositions for generating plant-microbiome pairings for enhanced VOC removal from air.
Methods for enhancing microbial production of specific length fatty alcohols in the presence of methanol
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.
METHODS FOR ENHANCING MICROBIAL PRODUCTION OF SPECIFIC LENGTH FATTY ALCOHOLS IN THE PRESENCE OF METHANOL
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.
Methanol dehydrogenase fusion proteins
Described herein are fusion proteins including methanol dehydrogenase (MeDH) and at least one other polypeptide such as 3-hexulose-6-phosphate dehydrogenase (HPS) or 6-phospho-3-hexuloisomerase (PHI), such as DHAS synthase or fructose-6-Phosphate aldolase or such as DHA synthase or DHA kinase. In a localized manner, the fusion protein can promote the conversion of methanol to formaldehyde and then to a ketose phosphate such as hexulose 6-phosphate or then to DHA and G3P. When expressed in cells, the fusion proteins can promote methanol uptake and rapid conversion to the ketose phosphate or to the DHA and D3P, which in turn can be used in a pathway for the production of a desired bioproduct. Beneficially, the rapid conversion to the ketose phosphate or to the DHA and G3P can avoid the undesirable accumulation of formaldehyde in the cell. Also described are engineered cells expressing the fusion protein, optionally include one or more additional metabolic pathway transgene(s), methanol metabolic pathway genes, target product pathway genes, cell culture compositions including the cells, methods for promoting production of the target product or intermediate thereof from the cells, compositions including the target product or intermediate, and products made from the target product or intermediate.
ENGINEERED MICROORGANISMS WITH G3P ->3PG ENZYME AND/OR FRUCTOSE-1,6-BISPHOSPHATASE INCLUDING THOSE HAVING SYNTHETIC OR ENHANCED METHYLOTROPHY
Described herein are engineered cells including ones having synthetic methylotrophy which include an NADH-dependent enzyme capable of converting G3P to 3PG (e.g., B. methanolicus gapN) and/or fructose-1,6-bisphosphatase, along with hexulose-6-phosphate synthase, 6-phospho-3-hexuloisomerase, a phosphoketolase, or a combination thereof. Engineered cells of the disclosure beneficially maintain adequate pool sizes of phosphorylated C3 and/or C4 compounds, and/or provide increased levels of NADPH. As such, the modifications allow for the generation of C6 compounds from C1 (e.g., a methanol feedstod) and C5 compounds, the regeneration of C5 compounds from C6 compounds by carbon rearrangement, and an improved balance between regeneration of C5 compounds and lower glycolysis. In turn, this allows the engineered microorganism to generate sufficient quantities of metabolic precursors (e.g., acetyl-CoA) which can be used in a bioproduct pathway, and the engineered cells can include further modifications to those pathway enzymes allowing for production of a desired bioproduct.