Project Summary/Abstract:
Enzymes, supported by their macromolecular structure, can catalyze chemical transformations with exquisite
control, delivering products with high selectivity. The mechanisms that enzymes can support, however, are
limited, making chemical technologies often the preferred method for synthesis, regardless of cost, toxicity, and
environmental burden. Herein are two proposals to expand the activity of enzymes beyond their natural function
for synthesizing medicinally important functional groups. Specifically, heme enzymes and methionine sulfoxide
reductases are tasked for the first time with performing aminations and oxidations, respectively, toward
synthesizing chiral trifluoroethylamines, sulfoxides, and sulfoximines, motifs known to bestow function and drug-
like properties to therapeutics and clinical candidates. By engineering enzymes to catalyze reactions beyond
their natural capabilities, we are boldly pushing the boundaries of biology and chemistry. This innovation has the
potential to revolutionize the way we make molecules and introduce new chemical reactions that can be
performed in living organisms. Furthermore, these efforts will unlock activities never before seen in biocatalysis,
expanding the repertoire of genetically encoded chemical transformations. The success of this proposal will
afford high-value molecules and biorenewable catalysts that may lead to the discovery of new medicines and
strategies to regulate biology, with the ultimate objective of informing and improving human health.