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Swoboda A, Pfeifenberger LJ, Duhović Z, Bürgler M, Oroz-Guinea I, Bangert K, Weißensteiner F, Parigger L, Ebner K, Glieder A, Kroutil W. Enantioselective High-Throughput Assay Showcased for the Identification of (R)- as well as (S)-Selective Unspecific Peroxygenases for C-H Oxidation. Angew Chem Int Ed Engl 2023; 62:e202312721. [PMID: 37743348 DOI: 10.1002/anie.202312721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
Identifying (bio)catalysts displaying high enantio-/stereoselectivity is a fundamental prerequisite for the advancement of asymmetric catalysis. Herein, a high-throughput, stereoselective screening assay is reported that gives information on enantioselectivity, stereopreference and activity as showcased for peroxygenase-catalyzed hydroxylation. The assay is based on spectrophotometric analysis of the simultaneous formation of NAD(P)H from the alcohol dehydrogenase catalyzed enantioselective oxidation of the sec-alcohol product formed in the peroxygenase reaction. The assay was applied to investigate a library comprising 44 unspecific peroxygenases (UPOs) containing 25 UPOs not reported yet. Thereby, previously non-described wild-type UPOs displaying (S)- as well as (R)-stereoselectivity for the hydroxylation of representative model substrates were identified, reaching up to 98 % ee for the (R)- and 94 % ee for the (S)-enantiomer. Homology models with concomitant docking studies indicated the structural reason for the observed complementary stereopreference.
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Affiliation(s)
- Alexander Swoboda
- Austrian Center of Industrial Biotechnology (ACIB GmbH) c/o Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
| | - Lukas Johannes Pfeifenberger
- Austrian Center of Industrial Biotechnology (ACIB GmbH) c/o Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
- Bisy GmbH, Wünschendorf 292, 8200, Hofstätten an der Raab, Austria
| | - Zerina Duhović
- Austrian Center of Industrial Biotechnology (ACIB GmbH) c/o Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
| | - Moritz Bürgler
- Bisy GmbH, Wünschendorf 292, 8200, Hofstätten an der Raab, Austria
| | - Isabel Oroz-Guinea
- Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
| | - Klara Bangert
- Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
| | | | - Lena Parigger
- Austrian Center of Industrial Biotechnology (ACIB GmbH) c/o Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
- Bisy GmbH, Wünschendorf 292, 8200, Hofstätten an der Raab, Austria
| | - Katharina Ebner
- Bisy GmbH, Wünschendorf 292, 8200, Hofstätten an der Raab, Austria
| | - Anton Glieder
- Bisy GmbH, Wünschendorf 292, 8200, Hofstätten an der Raab, Austria
| | - Wolfgang Kroutil
- Austrian Center of Industrial Biotechnology (ACIB GmbH) c/o Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
- Department of Chemistry, University of Graz, Heinrichstraße 28, 8010, Graz, Austria
- BioTechMed Graz, 8010, Graz, Austria
- Field of Excellence BioHealth, University of Graz, 8010, Graz, Austria
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