Enzymatic Lactone-Carbene C‒H Insertion to Build Contiguous Chiral Centers
- Creators
- Zhou, Andrew Z.
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Chen, Kai
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Arnold, Frances H.
Abstract
We report a biocatalytic platform of engineered cytochrome P411 enzymes (P450s with axial serine ligation) to carry out efficient lactone-carbene insertion into primary and secondary α-amino C–H bonds. Directed evolution of a P450 variant, P411-C10, yielded a lineage of enzyme variants capable of forming chiral lactone derivatives with high catalytic efficiency (up to 4000 TTN) and in a stereodivergent manner. For carbene insertion into secondary C–H bonds, a single mutation was discovered to invert the two contiguous chiral centers and lead to the opposite enantiomers of the same major diastereomers. This work demonstrates the utility of engineered enzymes for asymmetric catalysis and highlights the remarkable tunability of these genetically encoded biocatalysts for accessing the desired selectivities.
Additional Information
© 2020 American Chemical Society. Received: March 23, 2020; Revised: April 20, 2020; Published: April 21, 2020. This work was supported by NSF Division of Molecular and Cellular Biosciences grant MCB-1513007, US Army Research Office Institute for Collaborative Biotechnologies cooperative agreement W911NF-19-2-0026, and US Army Research Office Institute for Collaborative Biotechnologies contract W911NF-19-D-0001. K.C. thanks the Resnick Sustainability Institute at Caltech for fellowship support. Author Contributions: K.C. conceived the project. A.Z.Z. and K.C. performed all the experiments and analysis under the guidance of F.H.A. The manuscript was drafted by K.C. and edited by A.Z.Z. and F.H.A. The authors declare no competing financial interest.Attached Files
Supplemental Material - cs0c01349_si_001.pdf
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Additional details
- Eprint ID
- 102695
- DOI
- 10.1021/acscatal.0c01349
- Resolver ID
- CaltechAUTHORS:20200421-095315855
- NSF
- MCB-1513007
- Army Research Office (ARO)
- W911NF-19-2-0026
- Army Research Office (ARO)
- W911NF-19-D-0001
- Resnick Sustainability Institute
- Created
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2020-04-21Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Resnick Sustainability Institute, Division of Biology and Biological Engineering