Disclosed herein are methods for the preparation of boronate derivatives in the synthesis of antimicrobial compounds and uses thereof. Disclosed herein includes method of making a compound of Formula (B) by reducing the ketone group of the keto-ester compound of Formula (A), and the reduction can be performed using a Ruthenium based catalyst system or using an alcohol dehydrogenase bioreduction system.

Disclosed herein are methods for the preparation of boronate derivatives in the synthesis of antimicrobial compounds and uses thereof. Disclosed herein includes method of making a compound of Formula (B) by reducing the ketone group of the keto-ester compound of Formula (A), and the reduction can be performed using a Ruthenium based catalyst system or using an alcohol dehydrogenase bioreduction system.

An engineered microorganism(s) with novel pathways for the conversion of short-chain hydrocarbons to fuels and chemicals (e.g. carboxylic acids, alcohols, hydrocarbons, and their alpha-, beta-, and omega-functionalized derivatives) is described. Key to this approach is the use of hydrocarbon activation enzymes able to overcome the high stability and low reactivity of hydrocarbon compounds through the cleavage of an inert CH bond. Oxygen-dependent or oxygen-independent activation enzymes can be exploited for this purpose, which when combined with appropriate pathways for the conversion of activated hydrocarbons to key metabolic intermediates, enables the generation of product precursors that can subsequently be converted to desired compounds through established pathways. These novel engineered microorganism(s) provide a route for the production of fuels and chemicals from short chain hydrocarbons such as methane, ethane, propane, butane, and pentane.

An engineered microorganism(s) with novel pathways for the conversion of short-chain hydrocarbons to fuels and chemicals (e.g. carboxylic acids, alcohols, hydrocarbons, and their alpha-, beta-, and omega-functionalized derivatives) is described. Key to this approach is the use of hydrocarbon activation enzymes able to overcome the high stability and low reactivity of hydrocarbon compounds through the cleavage of an inert CH bond. Oxygen-dependent or oxygen-independent activation enzymes can be exploited for this purpose, which when combined with appropriate pathways for the conversion of activated hydrocarbons to key metabolic intermediates, enables the generation of product precursors that can subsequently be converted to desired compounds through established pathways. These novel engineered microorganism(s) provide a route for the production of fuels and chemicals from short chain hydrocarbons such as methane, ethane, propane, butane, and pentane.

The present invention relates to the field of bioengineering. It provides a Candida antarctica lipase B mutant and its application. The mutant enzyme overcomes the limit of the parent enzyme that can exhibit high enantioselectivity towards (R)-3-TBDMSO glutaric acid methyl monoester only at temperatures below 5 C. The mutant enzyme successfully increased R-ee value at 5-70 C. The mutant D223V/A281S exhibits high R-ee value (>99%), high conversion rate (80%), and high space-time yield (107.54 g L.sup.1 d.sup.1). The present invention lays a foundation for industrial production of (R)-3-TBDMSO glutaric acid methyl monoester using a biosynthesis approach and provide insights into conformational dynamics-based enzyme design.

The present invention relates to the field of bioengineering. It provides a Candida antarctica lipase B mutant and its application. The mutant enzyme overcomes the limit of the parent enzyme that can exhibit high enantioselectivity towards (R)-3-TBDMSO glutaric acid methyl monoester only at temperatures below 5 C. The mutant enzyme successfully increased R-ee value at 5-70 C. The mutant D223V/A281S exhibits high R-ee value (>99%), high conversion rate (80%), and high space-time yield (107.54 g L.sup.1 d.sup.1). The present invention lays a foundation for industrial production of (R)-3-TBDMSO glutaric acid methyl monoester using a biosynthesis approach and provide insights into conformational dynamics-based enzyme design.

This application describes methods, including non-naturally occurring methods, for biosynthesizing unsaturated pentahydrocarbons, such as isoprene and intermediates thereof, via the mevalonate pathway, as well as non-naturally occurring hosts for producing isoprene.

The invention relates to the production of one or more terpenoids through microbial engineering, and relates to the manufacture of products comprising terpenoids.

The invention relates to the production of one or more terpenoids through microbial engineering, and relates to the manufacture of products comprising terpenoids.

An engineered microorganism(s) with novel pathways for the conversion of short-chain hydrocarbons to fuels and chemicals (e.g. carboxylic acids, alcohols, hydrocarbons, and their alpha-, beta-, and omega-functionalized derivatives) is described. Key to this approach is the use of hydrocarbon activation enzymes able to overcome the high stability and low reactivity of hydrocarbon compounds through the cleavage of an inert CH bond. Oxygen-dependent or oxygen-independent activation enzymes can be exploited for this purpose, which when combined with appropriate pathways for the conversion of activated hydrocarbons to key metabolic intermediates, enables the generation of product precursors that can subsequently be converted to desired compounds through established pathways. These novel engineered microorganism(s) provide a route for the production of fuels and chemicals from short chain hydrocarbons such as methane, ethane, propane, butane, and pentane.