The invention provides an engineered carboxylic acid reductase (CAR) enzyme, a nucleic acid encoding the CAR enzyme, and a non-naturally occurring microbial organism comprising an exogenous nucleic acid encoding the CAR, an engineered transaminase (TA) enzyme, and/or a hexamethylenediamine (HMD) transaminase (TA2) enzyme. The invention provides a non-naturally occurring microbial organism that has a 1,6-hexanediol (HDO) pathway with a HDO pathway enzyme expressed in sufficient amounts to produce 6 aminocaproate semi aldehyde, HDO, or both. The invention further provides a non-naturally occurring microbial organism that has an HMD pathway with a HMD pathway enzyme expressed in sufficient amounts to produce 6-aminocaproate semialdehyde, HMD, or both. The invention additionally provides bioderived HMD, 6-aminocaproate semialdehyde, and/or HDO and methods for producing bioderived HMD, 6-aminocaproate semialdehyde, and/or HDO.

The present disclosure provides engineered bacteria for producing vanillin.

Provided herein are fermentation compositions and methods for improved production of vanillin and/or glucovanillin. The compositions and methods described herein provide efficient routes for the production of vanillin and/or glucovanillin and any compound that can be synthesized or biosynthesized from either or both.

Provided herein are genetically modified host cells. compositions. and methods for improved production of vanillin and/or glucovanillin. The host cells. compositions. and methods described herein provide an efficient route for the heterologous production of vanillin and/or glucovanillin and any compound that can be synthesized or biosynthesized from either or both.

Recombinant proteobacteria, including ?-proteobacteria, comprising a heterologous acyl-ACP desaturase and a heterologous acyl-ACP thioesterase, wherein the native dual 3-hydroxy acyl-ACP dehydratase/isomerase is deleted are provided herein. The recombinant proteobacteria produce non-native monounsaturated free fatty acids or derivatives thereof. Methods of producing non-native monounsaturated free fatty acids or derivatives thereof are also provided, in addition to cell cultures and fatty acid compositions produced by the recombinant proteobacteria. The recombinant proteobacteria may be used to produce insect pheromones or precursors thereof, and fragrances or precursors thereof.

The invention provides an engineered carboxylic acid reductase (CAR) enzyme, a nucleic acid encoding the CAR enzyme, and a non-naturally occurring microbial organism comprising an exogenous nucleic acid encoding the CAR, an engineered transaminase (TA) enzyme, and/or a hexamethylenediamine (HMD) transaminase (TA2) enzyme. The invention provides a non-naturally occurring microbial organism that has a 1,6-hexanediol (HDO) pathway with a HDO pathway enzyme expressed in sufficient amounts to produce 6 aminocaproate semialdehyde, HDO, or both. The invention further provides a non-naturally occurring microbial organism that has an HMD pathway with a HMD pathway enzyme expressed in sufficient amounts to produce 6-aminocaproate semialdehyde, HMD, or both. The invention additionally provides bioderived HMD, 6-aminocaproate semialdehyde, and/or HDO and methods for producing bioderived HMD, 6-aminocaproate semialdehyde, and/or HDO.

The present invention relates to methods for producing vanilloid compounds in a recombinant host, and in particular for converting a protocatechuic aldehyde into a substantially pure vanilloid. It further relates to novel yeast strains that are suitable for producing such vanilloid compounds.

There are provided a recombinant polypeptide having an excellent carboxylic acid reducing activity, and a production method of an aliphatic compound using the recombinant polypeptide.

A recombinant polypeptide has: (a) an amino acid sequence A having a sequence identity of 60% or higher, 65% or higher, 70% or higher, 75% or higher, 80% or higher, 85% or higher, 88% or higher, 90% or higher, 95% or higher, 97% or higher, 98% or higher, or 99% or higher with an amino acid sequence set forth in SEQ ID NO: 1; (b) a substitution of at least one amino acid at a position corresponding to a substrate-binding site of a polypeptide having an amino acid sequence set forth in SEQ ID NO: 1 in the amino acid sequence A; and (c) a carboxylic acid reducing activity.

The present invention relates to methods for producing vanilloid compounds in a recombinant host, and in particular for converting a protocatechuic aldehyde into a substantially pure vanilloid. It further relates to novel yeast strains that are suitable for producing such vanilloid compounds.

The invention relates to the use of EntD polypeptides, polynucleotides encoding the same, and homologues thereof to enhance the production of fatty aldehydes and fatty alcohols in a host cell.