Download MendeleyCharacterizing Y224 conformational flexibility in FtmOx1-catalysis using 19 F NMR spectroscopy.
Wang, X., Yang, L., Wang, S., Wang, J., Li, K., Naowarojna, N., Ju, Y., Ye, K., Han, Y., Yan, W., Liu, X., Zhang, L., Liu, P.(2025) Catal Sci Technol 15: 386-395
- PubMed: 39669701
- DOI: https://doi.org/10.1039/d4cy01077a
- Primary Citation of Related Structures:
9J1H, 9J1I - PubMed Abstract:
α-Ketoglutarate-dependent non-haem iron (αKG-NHFe) enzymes play a crucial role in natural product biosynthesis, and in some cases exhibiting multifunctional catalysis capability. This study focuses on αKG-NHFe enzyme FtmOx1, which catalyzes endoperoxidation, dealkylation, and alcohol oxidation reactions in verruculogen biosynthesis. We explore the hypothesis that the conformational dynamics of the active site Y224 confer the multifunctional activities of FtmOx1-catalysis. Utilizing Y224-to-3,5-difluorotyrosine-substituted FtmOx1, produced via the amber codon suppression method, we conducted 19 F NMR characterization to investigate FtmOx1's structural flexibility. Subsequent biochemical and X-ray crystallographic analyses provided insights into how specific conformations of FtmOx1-substrate complexes influence their catalytic activities. These findings underscore the utility of 19 F NMR as a powerful tool for elucidating the complex mechanisms of multifunctional enzymes, offering potential avenues for developing biocatalytic processes to produce novel therapeutic agents harnessing their unique catalytic properties.
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology Shanghai 200237 China liuxueting@ecust.edu.cn lizhang@ecust.edu.cn.
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