Cloning and expression of the l-1-amino-2-propanol dehydrogenase gene from Rhodococcus erythropolis, and its application to double chiral compound production

The gene encoding NADP⁺-dependent l-1-amino-2-propanol dehydrogenase (AADH) of Rhodococcus erythropolis MAK154 was cloned and sequenced. A 780-bp nucleotide fragment was confirmed to be the gene encoding AADH by agreement of the N-terminal and internal amino acid sequences of the purified AADH. The...

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Published inApplied microbiology and biotechnology Vol. 80; no. 4; pp. 597 - 604
Main Authors Kataoka, M, Ishige, T, Urano, N, Nakamura, Y, Sakuradani, E, Fukui, S, Kita, S, Sakamoto, K, Shimizu, S
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Berlin/Heidelberg : Springer-Verlag 01.09.2008
Springer Berlin Heidelberg
Springer
Springer Nature B.V
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Summary:The gene encoding NADP⁺-dependent l-1-amino-2-propanol dehydrogenase (AADH) of Rhodococcus erythropolis MAK154 was cloned and sequenced. A 780-bp nucleotide fragment was confirmed to be the gene encoding AADH by agreement of the N-terminal and internal amino acid sequences of the purified AADH. The gene (aadh) codes a total of 259 amino acid residues, and the deduced amino acid sequence shows similarity to several short-chain dehydrogenase/reductase family proteins. An expression vector, pKKAADH, which contains the full length aadh was constructed. Escherichia coli cells possessing pKKAADH exhibited a 10.4-fold increase in specific activity as to catalysis of the reduction of (S)-1-phenyl-2-methylaminopropan-1-one (MAK), as compared with that of R. erythropolis MAK154 induced by 1-amino-2-propanol (1 mg/ml). Coexpression of aadh with a cofactor regeneration enzyme (glucose dehydrogenase) gene was also performed, and a system for sufficient production of d-pseudoephedrine from racemic MAK was constructed.
Bibliography:http://dx.doi.org/10.1007/s00253-008-1563-6
ObjectType-Article-1
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content type line 23
ISSN:0175-7598
1432-0614
DOI:10.1007/s00253-008-1563-6