The present disclosure provides engineered carboxyesterase enzymes that have the ability to catalyze amide bond formation. Also provided are polynucleotides encoding the carboxyesterase enzymes, host cells capable of expressing the engineered carboxyesterase enzymes, and methods of using the engineered carboxyesterase enzymes to make commercially valuable amides. Also provided are amides that are made using the engineered carboxyesterase enzymes.

A technique relating to a method for enzymatically producing maytansinol from an ansamitocin species, such as AP3, is provided. The method for producing maytansinol includes enzymatically producing maytansinol from an ansamitocin species with any one of various proteins.

Methods for converting mixtures of anthocyanins occurring in fruit or vegetable juice or extract into particular anthocyanin molecules having desirable colorant properties are provided herein. The method of the present disclosure can be employed to increase the amount of particular anthocyanin molecules, while lowering the total number of anthocyanin molecules present in the natural juice and/or extract. The disclosure is also directed to anthocyanin molecules prepared by the methods of present disclosure and to enzymes capable of catalyzing reactions that provide such effects.

A device and method for the rapid on-site detection of inhibitors of enzymes, such as acetylcholinesterase, is described wherein the device contains all reagents added to a sample pad containing dried releasable enzyme creating a reaction mixture wherein inhibitor deactivates the enzyme, while said reaction mixture travels via a longitudinal membrane to a distal porous pad containing a substrate for the enzyme. The reaction of the enzyme and the substrate results in a product that can generate a measurable signal such as color, fluorescence or luminescence to serve as a reporter. Signal that is generated at this reaction zone is inversely proportional to inhibitor concentration in the test sample. A device containing two such strips, one for a test sample, the other for a negative control fluid as an onboard comparator is described. A purpose-built reader or an illuminating device, such as, containing an incandescent light source, a diode, a UV light source or any other illumination source that is suitable for the reporter or mere visualization is used to determine the level of reporter.

The present disclosure provides engineered carboxyesterase enzymes that have the ability to catalyze amide bond formation. Also provided are polynucleotides encoding the carboxyesterase enzymes, host cells capable of expressing the engineered carboxyesterase enzymes, and methods of using the engineered carboxyesterase enzymes to make commercially valuable amides. Also provided are amides that are made using the engineered carboxyesterase enzymes.

A process for synthesizing (R)-3 -hy droxybutyl (R)-3 -hy droxybutanoate from ethyl (R)-3-hydroxybutanoate and (R)-1,3-butanediol, as well a process for synthesizing (R)-3-hy droxybutyl (R)-3-hy droxybutanoate from (R)-3-hydroxybutyric acid and (R)-1,3-butanediol. Also provided are processes for isolating (R)-3-hy droxybutyl (R)-3-hy droxybutanoate, including from a fermentation broth.

The invention relates to methods for enriching monomer content in a cycloalkane oxidation process mixed organic waste stream. In particular, the methods involve combining a biocatalyst with a mixed organic waste stream from a cycloalkane oxidation process, and enzymatically converting dimeric and/or oligomeric components of said waste stream into monomeric components. The methods may enrich the content of diacids, adipic acid, and/or other α,ω-difunctional C6 alkanes in the mixed organic waste stream. Additionally, the treated mixed organic waste streams may have improved burning efficiency.

Compositions and methods for treating an animal who has been exposed to pyrethroid are provided. An effective amount of a pyrethroid detoxifying enzyme to prevent or treat pyrethroid toxicity. The pyrethroid detoxifying enzyme is one or more pyrethroid-hydrolyzing carboxylesterases.

Provided are methods for producing food products comprising recombinant components, and compositions used in and food products produced by such methods.

The present invention is directed to pharmaceutical formulations of therapeutic proteins that comprise one or more polyethoxylated fatty alcohol (PFA) surfactants that are resistant to lipase mediated degradation. The present invention is also directed to methods of reducing aggregate and/or particulate formation in pharmaceutical formulations of therapeutic proteins and methods of maintaining a stable surfactant level in pharmaceutical formulations of therapeutic proteins.