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(R)-phenylephrine [(R)-PE] is an α 1 -adrenergic receptor agonist that is widely used in over-the-counter drugs to treat the common cold. We found that Rhodococcus erythropolis BCRC 10909 can convert detectable level of 1-(3-hydroxyphenyl)-2-(methylamino) ethanone (HPMAE) to (S)-PE by high performance liquid chromatography tandem mass spectrometry analysis. An amino alcohol dehydrogenase gene...
N-Acylamino acid racemase (NAAAR) gene of Deinococcus radiodurans BCRC12827 was cloned into expression vector pQE30 to generate pQE-naaar and expressed in recombinant Escherichia coli JM109. The expressed enzyme purified from the crude cell extract of IPTG-induced E. coli JM109 (pQE-naaar) exhibited high racemization activity to N-carbamoyl-l-homophenylalanine (NCa-l-HPA) and N-carbamoyl-d-homophenylalanine...
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