PMID- 35132758 OWN - NLM STAT- MEDLINE DCOM- 20220421 LR - 20220722 IS - 1439-7633 (Electronic) IS - 1439-4227 (Linking) VI - 23 IP - 8 DP - 2022 Apr 20 TI - A Four-Step Enzymatic Cascade for Efficient Production of L-Phenylglycine from Biobased L-Phenylalanine. PG - e202100661 LID - 10.1002/cbic.202100661 [doi] AB - Enantiopure amino acids are of particular interest in the agrochemical and pharmaceutical industries. Here, we report a multi-enzyme cascade for efficient production of L-phenylglycine (L-Phg) from biobased L-phenylalanine (L-Phe). We first attempted to engineer Escherichia coli for expressing L-amino acid deaminase (LAAD) from Proteus mirabilis, hydroxymandelate synthase (HmaS) from Amycolatopsis orientalis, (S)-mandelate dehydrogenase (SMDH) from Pseudomonas putida, the endogenous aminotransferase (AT) encoded by ilvE and L-glutamate dehydrogenase (GluDH) from E. coli. However, 10 mM L-Phe only afforded the synthesis of 7.21+/-0.15 mM L-Phg. The accumulation of benzoylformic acid suggested that the transamination step might be rate-limiting. We next used leucine dehydrogenase (LeuDH) from Bacillus cereus to bypass the use of L-glutamate as amine donor, and 40 mM L-Phe gave 39.97+/-3.84 mM (6.04+/-0.58 g/L) L-Phg, reaching 99.9 % conversion. In summary, this work demonstrates a concise four-step enzymatic cascade for L-Phg synthesis from biobased L-Phe, with a potential for future industrial applications. CI - (c) 2022 Wiley-VCH GmbH. FAU - Zhu, Yuling AU - Zhu Y AD - State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Fujian, 361102, China. FAU - Yuan, Jifeng AU - Yuan J AUID- ORCID: 0000-0003-1874-190X AD - State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Fujian, 361102, China. LA - eng GR - 0660-X2123310/Xiamen University/ GR - ZhenSheng Biotech, China/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220226 PL - Germany TA - Chembiochem JT - Chembiochem : a European journal of chemical biology JID - 100937360 RN - 0 (Amino Acids) RN - 47E5O17Y3R (Phenylalanine) RN - 69-91-0 (2-phenylglycine) RN - TE7660XO1C (Glycine) SB - IM MH - Amino Acids/metabolism MH - *Escherichia coli/metabolism MH - Glycine/analogs & derivatives/metabolism MH - *Phenylalanine/metabolism OTO - NOTNLM OT - L-amino acid deaminase OT - L-phenylglycine OT - leucine dehydrogenases OT - multi-enzyme cascade OT - whole-cell biocatalyst EDAT- 2022/02/09 06:00 MHDA- 2022/04/22 06:00 CRDT- 2022/02/08 05:54 PHST- 2022/02/06 00:00 [revised] PHST- 2021/12/02 00:00 [received] PHST- 2022/02/09 06:00 [pubmed] PHST- 2022/04/22 06:00 [medline] PHST- 2022/02/08 05:54 [entrez] AID - 10.1002/cbic.202100661 [doi] PST - ppublish SO - Chembiochem. 2022 Apr 20;23(8):e202100661. doi: 10.1002/cbic.202100661. Epub 2022 Feb 26.