The invention provides polypeptides and encoding nucleic acids of aldehyde dehydrogenase variants. The invention also provides cells expressing aldehyde dehydrogenase variants. The invention further provides methods for producing 3-hydroxybutyraldehyde (3-HBal) and/or 1,3-butanediol (1,3-BDO), or an ester or amide thereof, comprising culturing cells expressing an aldehyde dehydrogenase variant or using lysates of such cells. The invention additional provides methods for producing 4-hydroxybutyraldehyde (4-HBal) and/or 1,4-butanediol (1,4-BDO), or an ester or amide thereof, comprising culturing cells expressing an aldehyde dehydrogenase variant or using lysates of such cells.

The compositions contain a novel aldehyde dehydrogenase derived from a novel mutant yeast, that improve memory and cognitive function. The embodiments relate to a food and pharmaceutical composition for preventing Alzheimer's disease and Huntington disease by reducing the accumulation of lesional proteins in brain tissue. The food or pharmaceutical compositions contain a lysate of any one or a mixture thereof selected from Saccharomyces cerevisiae, KCTC13925BP, KCTC14122BP, KCTC14123BP, KCTC14983BP, KCTC14984BP and KCTC14985BP.

A method for preparing and applying immobilized enzyme nanogels includes oxidized sodium alginate and enzymes are dissolved separately in deionized water, mixed uniformly, and reacted to obtain immobilized enzyme nanogels; the aldehyde groups in oxidized sodium alginate react with the amino groups in the enzymes, forming imine bonds to immobilize the enzymes; forming nano-scale cross-linked polymer-based particles with a three-dimensional network structure, resulting in the immobilized enzyme nanogels; the surface of immobilized collagenase nanogels is modified with CXCR4 antagonist peptides, which can specifically block CXCR4 on the surface of T cells; the Schiff base bonds can selectively break in the acidic microenvironment of tumors, leading to collagen degradation and reduced extracellular matrix density; the modification enhances the chemotaxis and infiltration of T cells into pancreatic cancer tissues and can inhibit the metastasis of pancreatic cancer.

The disclosure provides polypeptides and encoding nucleic acids of engineered aldehyde dehydrogenases. The disclosure also provides cells expressing an engineered form of the aldehyde dehydrogenase. The disclosure further provides methods for producing a bioderived compound, such as 3-hydroxybutyraldehyde, 1,3-butanediol, 4-hydroxybutyraldehyde, 1,4-butanediol, comprising culturing cells expressing an engineered aldehyde dehydrogenase.

Methods of producing a consumable alcoholic product involve utilizing one or more enzymes to reduce or remove an oral pain response otherwise experienced upon consumption of the product. Methods involve admixing at least one oxidase with a fermentate and optionally distilling the fermentate to produce a consumable alcoholic product, such as a distilled alcohol. Methods involve admixing at least one oxidase comprising an aldehyde dehydrogenase.

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.

Provided herein, among other things, is an engineered non-plant cell that produces a tropane alkaloid product, a precursor of a tropane alkaloid product, or a derivative of a tropane alkaloid product. A method for producing a tropane alkaloid, a precursor of a tropane alkaloid product, or a derivative of a tropane alkaloid product that makes use of the cell is also described.

The disclosure provides polypeptides and encoding nucleic acids of engineered aldehyde dehydrogenases. The disclosure also provides cells expressing an engineered form of the aldehyde dehydrogenase. The disclosure further provides methods for producing a bioderived compound, such as 3-hydroxybutyraldehyde, 1,3-butanediol, 4-hydroxybutyraldehyde, 1,4-butanediol, comprising culturing cells expressing an engineered aldehyde dehydrogenase.

The invention provides polypeptides and encoding nucleic acids of aldehyde dehydrogenase variants. The invention also provides cells expressing aldehyde dehydrogenase variants. The invention further provides methods for producing 3-hydroxybutyraldehyde (3-HBal) and/or 1,3-butanediol (1,3-BDO), or an ester or amide thereof, comprising culturing cells expressing an aldehyde dehydrogenase variant or using lysates of such cells. The invention additional provides methods for producing 4-hydroxybutyraldehyde (4-HBal) and/or 1,4-butanediol (1,4-BDO), or an ester or amide thereof, comprising culturing cells expressing an aldehyde dehydrogenase variant or using lysates of such cells.

The present invention relates to a cell capable of producing a fluorinated compound, in particular F-acetaldehyde and optionally F-acetyl-CoA and F-acetate, methods for producing fluorinated compounds in a cell and expression systems thereof.