Enzymatic synthesis of chiral phenylalanine derivatives by a dynamic kinetic resolution of corresponding amide and nitrile substrates with a multi??enzyme system
K Yasukawa, Y Asano
Index: Yasukawa, Kazuyuki; Asano, Yasuhisa Advanced Synthesis and Catalysis, 2012 , vol. 354, # 17 p. 3327 - 3332
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Citation Number: 24
Abstract
Abstract Mutant α-amino-ε-caprolactam (ACL) racemase (L19V/L78T) from Achromobacter obae with improved substrate specificity toward phenylalaninamide was obtained by directed evolution. The mutant ACL racemase and thermostable mutant D-amino acid amidase (DaaA) from Ochrobactrum anthropi SV3 co-expressed in Escherichia coli (pACLmut/pDBFB40) were utilized for synthesis of (R)-phenylalanine and non-natural (R)- ...
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