Abstract: The compositions and methods of the disclosure can be used to purify a cannabinoid in a host cell, such as a yeast cell, genetically modified to express the enzymes of a cannabinoid biosynthetic pathway. Using the compositions and methods of the disclosure, a fermentation composition may be contacted with an enzymatic composition including a serine protease to purify a cannabinoid.

Abstract: Provided herein are genetically modified yeast cells capable of producing one or more human milk oligosaccharides. The yeast cells include one or more heterologous nucleic acids that encode enzymes of a human milk oligosaccharide biosynthetic pathway. The yeast cells do not include a heterologous nucleic acid encoding a fucokinase. Also provided are fermentation compositions including the disclosed genetically modified yeast cells, and related methods of producing and recovering human milk oligosaccharides generated by the yeast cells.

Abstract: The present invention relates generally to targeted molecular agents (TMAs) directed to a particular organism or group of organisms and uses thereof. More particularly, the present invention provides TMAs having a targeting moiety which comprises a natural or induced auxotrophic requirement of the particular organism as a vehicle for directing an agent linked to the moiety to be delivered to the target organism. The TMAs of the present invention are useful for targeting molecules such as antimicrobial agents and diagnostic agents to selected organisms.