Biocatalysis with the milk protein -lactoglobulin: promoting retroaldol cleavage of ,-unsaturated aldehydes. Academic Article uri icon

abstract

  • Enzymes with a hydrophobic binding site and an active site lysine have been suggested to be promiscuous in their catalytic activity. -Lactoglobulin (BLG), the principle whey protein found in milk, possesses a central calyx that binds non-polar molecules. Here, we report that BLG can catalyze the retro-aldol cleavage of ,-unsaturated aldehydes making it a naturally occurring protein capable of catalyzing retro-aldol reactions on hydrophobic substrates. Retroaldolase activity was seen to be most effective on substrates with phenyl or naphthyl side-chains. Use of a brominated substrate analogue inhibitor increases the product yield by a factor of three. BLG's catalytic activity and its ready availability make it a prime candidate for the development of commercial biocatalysts.

published proceedings

  • Org Biomol Chem

author list (cited authors)

  • Gowda, V., Foley, B., Du, J., Esteb, M., & Watanabe, C.

publication date

  • January 1, 2018 11:11 AM