4.7 Article

Deracemization of Amino Acids by Coupling Transaminases of Opposite Stereoselectivity

Journal

ADVANCED SYNTHESIS & CATALYSIS
Volume 356, Issue 17, Pages 3505-3509

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201400185

Keywords

amino acids; biocatalysis; coupled enzyme reaction; deracemization; transaminases

Funding

  1. Advanced Biomass R&D Center through the National Research Foundation of Korea - Ministry of Education, Science and Technology [ABC-2011-0031358]

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Biocatalytic deracemization of amino acids without relying on oxidase-based deamination of an unwanted enantiomer was demonstrated by coupling alpha- and omega-transaminases displaying opposite stereoselectivity. This strategy employs isopropylamine and a keto acid as cosubstrates and is free of generation of hydrogen peroxide which is troublesome in the conventional oxidase-based methods.

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