Provided are genetically engineered microorganism that catalyze the synthesis of propane and/or butanol from a suitable substrate such as glucose. Also provided are methods of engineering said genetically engineered microorganism and methods of producing propane and/or butanol using the genetically engineered microorganism.

The disclosure relates to variant carboxylic acid reductase (CAR) enzymes for the improved production of fatty alcohols in recombinant host cells.

The disclosure relates to mutant gene(s) that confer upon microorganisms that express them an improved capacity to utilize xylose and improved capacity to co-utilize glucose and xylose thereby resulting in improved growth of the microorganism. Further encompassed are methods of producing fatty acids and fatty acid derivatives from cellulosic biomass, xylose, and/or a glucose/xylose mix by employing the host cells expressing the engineered XylR variants and compositions of biologically produced fatty acids and fatty acid derivatives.

The invention relates to recombinant microorganisms and methods of producing citronellal, citronellol, citronellic acid, and/or citronellal/citronellol pathway intermediates and precursors.

This document describes biochemical pathways for producing pimeloyl-CoA using a polypeptide having the enzymatic activity of a hydroperoxide lyase to form non-3-enal and 9-oxononanoate from 9-hydroxyperoxyoctadec-10,12-dienoate. Non-3-enal and 9-oxononanoate can be enzymatically converted to pimeloyl-CoA or a salt thereof using one or more polypeptides having the activity of a dehydrogenase, a CoA ligase, an isomerase, a reductase, a thioesterase, a monooxygenase, a hydratase, and/or a thiolase. Pimeloyl-CoA can be enzymatically converted to pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine, or 1,7-heptanediol, or corresponding salts thereof. This document also describes recombinant microorganisms producing pimeloyl-CoA, as well as pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine, and 1,7-heptanediol, or corresponding salts thereof.

This document describes biochemical pathways for producing 7-aminoheptanoic acid using a β-ketoacyl synthase or a β-ketothiolase to form an N-acetyl-5-amino-3-oxopentanoyl-CoA intermediate. 7-aminoheptanoic acid can be enzymatically converted to pimelic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol or corresponding salts thereof. This document also describes recombinant microorganisms producing 7-aminoheptanoic acid as well as pimelic acid, 7-hydroxyheptanoic acid, heptamethylenediamine and 1,7-heptanediol or corresponding salts thereof.

This disclosure relates to genome-scale attenuation or knockout strategies for directing carbon flux to certain carbon based building blocks within the 7-aminoheptanoic acid (7-AHA) and 6-aminohexanoic acid (6-AHA) biosynthesis pathways, for example, to achieve reduced flux to unwanted side products while achieving increased production of desired intermediates and end products. This disclosure also relates to non-naturally occurring mutant bacterial strains comprising one or more gene disruptions in aldehyde reductase and/or aldehyde dehydrogenase genes that are generated to direct carbon flux to certain carbon based building blocks. This disclosure further relates to a method for enhancing production of carbon based building blocks by generating non-naturally occurring mutant bacterial strains, culturing said mutant bacterial strains in the presence of suitable substrates or under desired growth conditions, and substantially purifying the desired end product.

The disclosure relates to variant carboxylic acid reductase (CAR) enzymes for the improved production of fatty alcohols in recombinant host cells.

Disclosed are methods for regulating biosynthesis of at least one of pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine, 7-aminoheptanoland 1,7-heptanediol (C7 building blocks) using a pathway having a pimeloyl-ACP intermediate, the method including the step of downregulating the activity of BioF. Also disclosed are recombinant hosts by fermentation in which the above methods are performed. Further disclosed are recombinant hosts for producing pimeloyl-ACP, the recombinant host including a deletion of a bioF gene.

Provided are genetically engineered microorganism that catalyze the synthesis of propane and/or butanol from a suitable substrate such as glucose. Also provided are methods of engineering said genetically engineered microorganism and methods of producing propane and/or butanol using the genetically engineered microorganism.