Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks

Transaminases are enzymes capable of stereoselective reductive amination; they are of great interest in the production of chiral building blocks. However, the use of this class of enzymes in industrial processes is often hindered by their limited stability under operational conditions. Her...

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Main Authors: Ayoub Talbi Alami, Federica Richina, M. Rita Correro, Yves Dudal, Patrick Shahgaldian
Format: Article
Language:deu
Published: Swiss Chemical Society 2018-05-01
Series:CHIMIA
Subjects:
Online Access:https://www.chimia.ch/chimia/article/view/1441
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author Ayoub Talbi Alami
Federica Richina
M. Rita Correro
Yves Dudal
Patrick Shahgaldian
author_facet Ayoub Talbi Alami
Federica Richina
M. Rita Correro
Yves Dudal
Patrick Shahgaldian
author_sort Ayoub Talbi Alami
collection DOAJ
description Transaminases are enzymes capable of stereoselective reductive amination; they are of great interest in the production of chiral building blocks. However, the use of this class of enzymes in industrial processes is often hindered by their limited stability under operational conditions. Herein, we demonstrate that a transaminase enzyme from Aspergillus terreus can be immobilized at the surface of silica nanoparticles and protected in an organosilica shell of controlled thickness. The so-protected enzyme displays a high biocatalytic activity, and additionally provides the possibility to be retained in a reactor system for continuous operation and to be recycled.
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spelling doaj.art-64eb1e13cce44309b0b236feb191cc042022-12-22T00:00:42ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24242018-05-0172510.2533/chimia.2017.345Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building BlocksAyoub Talbi Alami0Federica Richina1M. Rita Correro2Yves Dudal3Patrick Shahgaldian4INOFEA AG, Hochbergerstrasse 60C, CH-4057 Basel, SwitzerlandINOFEA AG, Hochbergerstrasse 60C, CH-4057 Basel, SwitzerlandINOFEA AG, Hochbergerstrasse 60C, CH-4057 Basel, SwitzerlandINOFEA AG, Hochbergerstrasse 60C, CH-4057 Basel, SwitzerlandInstitute of Chemistry and Bioanalytics, School of Life Science, University of Applied Sciences and Arts Northwestern Switzerland, Gründenstrasse 40, CH-4132 Muttenz, Switzerland. patrick.shahgaldian@fhnw.ch Transaminases are enzymes capable of stereoselective reductive amination; they are of great interest in the production of chiral building blocks. However, the use of this class of enzymes in industrial processes is often hindered by their limited stability under operational conditions. Herein, we demonstrate that a transaminase enzyme from Aspergillus terreus can be immobilized at the surface of silica nanoparticles and protected in an organosilica shell of controlled thickness. The so-protected enzyme displays a high biocatalytic activity, and additionally provides the possibility to be retained in a reactor system for continuous operation and to be recycled. https://www.chimia.ch/chimia/article/view/1441Chiral building blocksTransaminases
spellingShingle Ayoub Talbi Alami
Federica Richina
M. Rita Correro
Yves Dudal
Patrick Shahgaldian
Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks
CHIMIA
Chiral building blocks
Transaminases
title Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks
title_full Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks
title_fullStr Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks
title_full_unstemmed Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks
title_short Surface Immobilization and Shielding of a Transaminase Enzyme for the Stereoselective Synthesis of Pharmaceutically Relevant Building Blocks
title_sort surface immobilization and shielding of a transaminase enzyme for the stereoselective synthesis of pharmaceutically relevant building blocks
topic Chiral building blocks
Transaminases
url https://www.chimia.ch/chimia/article/view/1441
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