期刊
RSC ADVANCES
卷 11, 期 58, 页码 36670-36681出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ra06616a
关键词
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资金
- DSI Industrial Biocatalysis Hub
- National Research Foundation (NRF) [Gun 117975]
This study focused on the design and synthesis of mimetic peptides based on the catalytic active site of the FBPA enzyme, which were evaluated for their catalytic activity and selectivity in asymmetric aldol reactions. The peptides showed moderate catalytic activity, with low yields but high enantioselectivity.
This study describes the design and synthesis of mimetic peptides modelled on the catalytic active site of the fructose-1,6-bisphosphate aldolase (FBPA) enzyme. The synthesized peptides consisting of the turn motifs and catalytic site amino acids of FBPA enzyme were evaluated for catalytic activity in direct asymmetric aldol reactions of ketones and aldehydes. The influence of substrate scope, catalyst loading and solvents including water, on the reaction were also investigated. Nuclear magnetic resonance (NMR) and circular dichroism (CD) were used to determine the secondary structure of the peptides to provide an understanding of the structure-activity relationship. The peptides showed catalytic activity and the aldol products were obtained in low yields (up to 44%), but excellent enantioselectivity (up to 93%) and moderate diastereoselectivity (65 : 35).
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