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Codon Optimization> | … pET-28a. Codon optimization and Construction of a polycistronic co-expression plasmid. Codon optimization and gene synthesis were performed by GenScript (Nanjing, China) based on the preferred codons in E. coli. The codon … | Get A Quote |
(S)-N-Boc-3-hydroxypiperidine (S-NBHP) is a critical chiral intermediate in the synthesis of pharmaceuticals, including ibrutinib, the active pharmaceutical ingredient of the new drug Imbruvica approved for the treatment of lymphoma. An (R)-specific carbonyl reductase from Candida parapsilosis (CprCR, also known as R-specific alcohol dehydrogenase) that catalyzes asymmetric reduction to produce (S)-N-Boc-3-hydroxypiperidine (S-NBHP) was identified for the first time. When co-expressed with a glucose dehydrogenase from Bacillus megaterium in Escherichia coli Rosetta (DE3), recombinant crude enzyme exhibited an activity of 9 U/mg with N-Boc-3-piperidone as the substrate and 12 U/mg with glucose as the s... More