A. Galkin et al., CONVERSION OF ALPHA-KETO ACIDS TO D-AMINO ACIDS BY COUPLING OF 4 ENZYME-REACTIONS, Journal of fermentation and bioengineering, 83(3), 1997, pp. 299-300
We developed a new procedure for stereospecific conversion of various
alpha-keto acids to the corresponding D-amino acids with four thermost
able enzymes: D-amino acid aminotransferase, alanine racemase, L-alani
ne dehydrogenase and formate dehydrogenase. Optically pure D-enantiome
rs of glutamate, phenylalanine and tyrosine were obtained with high co
nversion rates.