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Ye WJ, Xie JW, Liu Y, Wang YL, Zhang YX, Yang XY, Yang L, Wang HL, Wei DZ. Enhancing the Activity of an Alcohol Dehydrogenase by Using "Aromatic Residue Scanning" at Potential Plasticity Sites. Chemistry 2023; 29:e202203530. [PMID: 36790363 DOI: 10.1002/chem.202203530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/30/2023] [Accepted: 02/13/2023] [Indexed: 02/16/2023]
Abstract
An alcohol dehydrogenase LkADH was successfully engineered to exhibit improved activity and substrate tolerance for the production of (S)-2-chloro-1-(3,4-difluorophenyl)ethanol, an important precursor of ticagrelor. Five potential hotspots were identified for enzyme mutagenesis by using natural residue abundance as an indicator to evaluate their potential plasticity. A semi-rational strategy named "aromatic residue scanning" was applied to randomly mutate these five sites simultaneously by using tyrosine, tryptophan, and phenylalanine as "exploratory residues" to introduce steric hindrance or potential π-π interactions. The best variant Lk-S96Y/L199W identified with 17.2-fold improvement in catalytic efficiency could completely reduce up to 600 g/L (3.1 M) 2-chloro-1-(3,4-difluorophenyl)ethenone in 12 h with >99.5 % ee, giving the highest space-time yield ever reported. This study, therefore, offers a strategy for mutating alcohol dehydrogenase to reduce aromatic substrates and provides an efficient variant for the efficient synthesis of (S)-2-chloro-1-(3,4-difluorophenyl)ethanol.
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Affiliation(s)
- Wen-Jie Ye
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Jing-Wen Xie
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yan Liu
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yi-Lin Wang
- Georgetown Preparatory School, North Bethesda, Maryland, 20852, USA
| | - Yu-Xin Zhang
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Xiao-Ying Yang
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Lin Yang
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Hua-Lei Wang
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Dong-Zhi Wei
- State Key Laboratory of, Bioreactor Engineering New World Institute of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
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