1
|
Floor RJ, Wijma HJ, Colpa DI, Ramos-Silva A, Jekel PA, Szymański W, Feringa BL, Marrink SJ, Janssen DB. Computational library design for increasing haloalkane dehalogenase stability. Chembiochem 2014; 15:1660-72. [PMID: 24976371 DOI: 10.1002/cbic.201402128] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Indexed: 11/05/2022]
Abstract
We explored the use of a computational design framework for the stabilization of the haloalkane dehalogenase LinB. Energy calculations, disulfide bond design, molecular dynamics simulations, and rational inspection of mutant structures predicted many stabilizing mutations. Screening of these in small mutant libraries led to the discovery of seventeen point mutations and one disulfide bond that enhanced thermostability. Mutations located in or contacting flexible regions of the protein had a larger stabilizing effect than mutations outside such regions. The combined introduction of twelve stabilizing mutations resulted in a LinB mutant with a 23 °C increase in apparent melting temperature (Tm,app , 72.5 °C) and an over 200-fold longer half-life at 60 °C. The most stable LinB variants also displayed increased compatibility with co-solvents, thus allowing substrate conversion and kinetic resolution at much higher concentrations than with the wild-type enzyme.
Collapse
Affiliation(s)
- Robert J Floor
- Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen (The Netherlands)
| | | | | | | | | | | | | | | | | |
Collapse
|
2
|
Schrittwieser JH, Groenendaal B, Resch V, Ghislieri D, Wallner S, Fischereder EM, Fuchs E, Grischek B, Sattler JH, Macheroux P, Turner NJ, Kroutil W. Deracemization by simultaneous bio-oxidative kinetic resolution and stereoinversion. Angew Chem Int Ed Engl 2014; 53:3731-4. [PMID: 24615790 PMCID: PMC4499246 DOI: 10.1002/anie.201400027] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Indexed: 11/21/2022]
Abstract
Deracemization, that is, the transformation of a racemate into a single product enantiomer with theoretically 100% conversion and 100% ee, is an appealing but also challenging option for asymmetric synthesis. Herein a novel chemo-enzymatic deracemization concept by a cascade is described: the pathway involves two enantioselective oxidation steps and one non-stereoselective reduction step, enabling stereoinversion and a simultaneous kinetic resolution. The concept was exemplified for the transformation of rac-benzylisoquinolines to optically pure (S)-berbines. The racemic substrates were transformed to optically pure products (ee>97%) with up to 98% conversion and up to 88% yield of isolated product.
Collapse
Affiliation(s)
- Joerg H Schrittwieser
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| | - Bas Groenendaal
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology131 Princess Street, Manchester, M1 7DN (UK)
| | - Verena Resch
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| | - Diego Ghislieri
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology131 Princess Street, Manchester, M1 7DN (UK)
| | - Silvia Wallner
- Institut für Biochemie, Technische Universität GrazPetersgasse 12, 8010 Graz (Austria)
| | - Eva-Maria Fischereder
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| | - Elisabeth Fuchs
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| | - Barbara Grischek
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| | - Johann H Sattler
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| | - Peter Macheroux
- Institut für Biochemie, Technische Universität GrazPetersgasse 12, 8010 Graz (Austria)
| | - Nicholas J Turner
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology131 Princess Street, Manchester, M1 7DN (UK)
| | - Wolfgang Kroutil
- Institut für Chemie, Organische und Bioorganische Chemie, Karl-Franzens-Universität GrazHeinrichstrasse 28, A-8010 Graz (Austria)
| |
Collapse
|
3
|
Schrittwieser JH, Groenendaal B, Resch V, Ghislieri D, Wallner S, Fischereder EM, Fuchs E, Grischek B, Sattler JH, Macheroux P, Turner NJ, Kroutil W. Deracemisierung durch simultane bio-oxidative Racematspaltung und Stereoinversion. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
4
|
Schober M, Toesch M, Knaus T, Strohmeier GA, van Loo B, Fuchs M, Hollfelder F, Macheroux P, Faber K. One-Pot Deracemization of sec-Alcohols: Enantioconvergent Enzymatic Hydrolysis of Alkyl Sulfates Using Stereocomplementary Sulfatases. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 125:3359-3361. [PMID: 25821253 PMCID: PMC4373141 DOI: 10.1002/ange.201209946] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 01/12/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Markus Schober
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Michael Toesch
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Tanja Knaus
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Gernot A Strohmeier
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Bert van Loo
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Michael Fuchs
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Florian Hollfelder
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Peter Macheroux
- M. Schober, M. Toesch, Dr. M. Fuchs, Prof. K. Faber Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria)
- Dr. T. Knaus, Prof. P. Macheroux Institute of Biochemistry, Graz University of Technology
- Dr. G. A. Strohmeier ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
- Dr. B. van Loo, Prof. F. Hollfelder Department of Biochemistry, University of Cambridge
| | - Kurt Faber
- *Department of Chemistry, Organic & Bioorganic Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz (Austria) E-mail: Homepage: http://biocatalysis.uni-graz.at/
| |
Collapse
|
5
|
Schober M, Toesch M, Knaus T, Strohmeier GA, van Loo B, Fuchs M, Hollfelder F, Macheroux P, Faber K. One-pot deracemization of sec-alcohols: enantioconvergent enzymatic hydrolysis of alkyl sulfates using stereocomplementary sulfatases. Angew Chem Int Ed Engl 2013; 52:3277-9. [PMID: 23401148 PMCID: PMC3743160 DOI: 10.1002/anie.201209946] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 01/12/2013] [Indexed: 12/03/2022]
Affiliation(s)
- Markus Schober
- Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria) E-mail: Homepage: http://biocatalysis.uni-graz.at/
| | - Michael Toesch
- Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria) E-mail: Homepage: http://biocatalysis.uni-graz.at/
| | - Tanja Knaus
- Institute of Biochemistry, Graz University of Technology
| | - Gernot A Strohmeier
- ACIB GmbH c/o Department of Organic Chemistry, Graz University of Technology
| | - Bert van Loo
- Department of Biochemistry, University of Cambridge
| | - Michael Fuchs
- Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria) E-mail: Homepage: http://biocatalysis.uni-graz.at/
| | | | | | - Kurt Faber
- Department of Chemistry, Organic & Bioorganic Chemistry, University of GrazHeinrichstrasse 28, 8010 Graz (Austria) E-mail: Homepage: http://biocatalysis.uni-graz.at/
| |
Collapse
|