Amine transaminases in chiral amines synthesis: recent advances and challenges

Transaminases, which catalyze the stereoselective transfer of an amino group between an amino donor and a prochiral ketone substrate, are interesting biocatalytic tools for the generation of optically pure chiral amines. In particular, amine transaminases (ATAs) are of industrial interest because th...

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Bibliographic Details
Published inWorld journal of microbiology & biotechnology Vol. 34; no. 1; pp. 13 - 10
Main Authors Ferrandi, Erica E., Monti, Daniela
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.01.2018
Springer Nature B.V
Subjects
Amination
Amines
Applied Microbiology
Biochemistry
Biomedical and Life Sciences
Biotechnology
Chemical synthesis
Environmental Engineering/Biotechnology
Enzymes
Life Sciences
Microbiology
Microorganisms
Protein engineering
Review
Substrates
Transaminases
Process development
Protein engineering
Amine transaminases
Biocatalysis
Chiral amines
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Summary:Transaminases, which catalyze the stereoselective transfer of an amino group between an amino donor and a prochiral ketone substrate, are interesting biocatalytic tools for the generation of optically pure chiral amines. In particular, amine transaminases (ATAs) are of industrial interest because they are capable of performing reductive amination reactions using a broad range of amine donors and acceptors. The most remarkable example of ATAs industrial application is in the production process of the anti-hyperglycaemic drug sitagliptin (Januvia ® /Janumet ® ), which generated around 6 billion U.S. dollars of revenue to Merck in 2016. In this review, an update about the availability of microbial ATAs, discovered by both screening and database-mining approaches, or obtained by protein engineering of wild-type enzymes, will be provided. Current challenges in ATAs application and possible solutions will be also discussed. In particular, innovative biocatalytic process strategies aimed at the improvement of ATAs performances in chiral amines synthesis, e.g., using in situ product removal process strategies or flow reactors, will be presented. The progress in the industrial exploitation of these enzymes will be highlighted by selected examples of large-scale ATA-catalyzed processes.
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ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-017-2395-2