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Structure of recombinant formate dehydrogenase from Methylobacterium extorquens (MeFDH1)
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- Authors
- Issue Date
- 2024-02
- Publisher
- Nature Research
- Citation
- Scientific Reports, Vol.14 No.1, p. 3819
- Abstract
- Formate dehydrogenase (FDH) is critical for the conversion between formate and carbon dioxide. Despite its importance, the structural complexity of FDH and difficulties in the production of the enzyme have made elucidating its unique physicochemical properties challenging. Here, we purified recombinant Methylobacterium extorquens AM1 FDH (MeFDH1) and used cryo-electron microscopy to determine its structure. We resolved a heterodimeric MeFDH1 structure at a resolution of 2.8 Å, showing a noncanonical active site and a well-embedded Fe-S redox chain relay. In particular, the tungsten bis-molybdopterin guanine dinucleotide active site showed an open configuration with a flexible C-terminal cap domain, suggesting structural and dynamic heterogeneity in the enzyme.
- ISSN
- 2045-2322
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