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Eichenberger M, Hüppi S, Patsch D, Aeberli N, Berweger R, Dossenbach S, Eichhorn E, Flachsmann F, Hortencio L, Voirol F, Vollenweider S, Bornscheuer UT, Buller R. Asymmetric Cation‐Olefin Monocyclization by Engineered Squalene–Hopene Cyclases. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Michael Eichenberger
- Zurich University of Applied Sciences Life Sciences and Facility Management Einsiedlerstrasse 31 8820 Wädenswil Switzerland
| | - Sean Hüppi
- Zurich University of Applied Sciences Life Sciences and Facility Management Einsiedlerstrasse 31 8820 Wädenswil Switzerland
- Department of Biotechnology Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Patsch
- Zurich University of Applied Sciences Life Sciences and Facility Management Einsiedlerstrasse 31 8820 Wädenswil Switzerland
- Institute of Biochemistry, Dept. of Biotechnology & Enzyme Catalysis Greifswald University Felix-Hausdorff-Strasse 4 17487 Greifswald Germany
| | - Natalie Aeberli
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Raphael Berweger
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Sandro Dossenbach
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Eric Eichhorn
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Felix Flachsmann
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Lucas Hortencio
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Francis Voirol
- Fragrances S&T Ingredients Research Givaudan Schweiz AG Kemptpark 50 8310 Kemptthal Switzerland
| | - Sabine Vollenweider
- Science & Technology Givaudan International SA Kemptpark 50 8310 Kemptthal Switzerland
| | - Uwe T. Bornscheuer
- Institute of Biochemistry, Dept. of Biotechnology & Enzyme Catalysis Greifswald University Felix-Hausdorff-Strasse 4 17487 Greifswald Germany
| | - Rebecca Buller
- Zurich University of Applied Sciences Life Sciences and Facility Management Einsiedlerstrasse 31 8820 Wädenswil Switzerland
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Eichenberger M, Hüppi S, Patsch D, Aeberli N, Berweger R, Dossenbach S, Eichhorn E, Flachsmann F, Hortencio L, Voirol F, Vollenweider S, Bornscheuer UT, Buller R. Asymmetric Cation-Olefin Monocyclization by Engineered Squalene-Hopene Cyclases. Angew Chem Int Ed Engl 2021; 60:26080-26086. [PMID: 34346556 PMCID: PMC9290348 DOI: 10.1002/anie.202108037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/09/2021] [Indexed: 12/31/2022]
Abstract
Squalene–hopene cyclases (SHCs) have great potential for the industrial synthesis of enantiopure cyclic terpenoids. A limitation of SHC catalysis has been the enzymes’ strict (S)‐enantioselectivity at the stereocenter formed after the first cyclization step. To gain enantio‐complementary access to valuable monocyclic terpenoids, an SHC‐wild‐type library including 18 novel homologs was set up. A previously not described SHC (AciSHC) was found to synthesize small amounts of monocyclic (R)‐γ‐dihydroionone from (E/Z)‐geranylacetone. Using enzyme and process optimization, the conversion to the desired product was increased to 79 %. Notably, analyzed AciSHC variants could finely differentiate between the geometric geranylacetone isomers: While the (Z)‐isomer yielded the desired monocyclic (R)‐γ‐dihydroionone (>99 % ee), the (E)‐isomer was converted to the (S,S)‐bicyclic ether (>95 % ee). Applying the knowledge gained from the observed stereodivergent and enantioselective transformations to an additional SHC‐substrate pair, access to the complementary (S)‐γ‐dihydroionone (>99.9 % ee) could be obtained.
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Affiliation(s)
- Michael Eichenberger
- Zurich University of Applied Sciences, Life Sciences and Facility Management, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland
| | - Sean Hüppi
- Zurich University of Applied Sciences, Life Sciences and Facility Management, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland.,Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
| | - David Patsch
- Zurich University of Applied Sciences, Life Sciences and Facility Management, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland.,Institute of Biochemistry, Dept. of Biotechnology & Enzyme Catalysis, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Natalie Aeberli
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Raphael Berweger
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Sandro Dossenbach
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Eric Eichhorn
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Felix Flachsmann
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Lucas Hortencio
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Francis Voirol
- Fragrances S&T, Ingredients Research, Givaudan Schweiz AG, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Sabine Vollenweider
- Science & Technology, Givaudan International SA, Kemptpark 50, 8310, Kemptthal, Switzerland
| | - Uwe T Bornscheuer
- Institute of Biochemistry, Dept. of Biotechnology & Enzyme Catalysis, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Rebecca Buller
- Zurich University of Applied Sciences, Life Sciences and Facility Management, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland
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