Download MendeleyStructural Insights into the Reaction between Hydrogen Peroxide and Di-iron Complexes at the Ferroxidase Center of Ferritin.
Jiao, R., Zhao, G., Zhang, T.(2024) Inorg Chem 63: 3359-3365
- PubMed: 38315811
- DOI: https://doi.org/10.1021/acs.inorgchem.3c03889
- Primary Citation of Related Structures:
8W91, 8W92, 8W93, 8W94, 8W95 - PubMed Abstract:
The Fe(II) oxidation mechanism in the ferroxidase center of heavy chain ferritin has been studied extensively. However, the actual production of H 2 O 2 was found to be substantially lower than expected at low flux of Fe(II) to ferritin subunits. Here, we demonstrated that H 2 O 2 could interact with the di-iron nuclear center, leading to the production of hydroxyl radicals and oxygen. Two reaction intermediates were captured in the ferroxidase center by using the time-lapse crystallographic techniques in a shellfish ferritin. The crystal structures revealed the binding of H 2 O 2 as a μ -1,2-peroxo-diferric species and the binding of O 2 to the diferric structure. This investigation sheds light on the reaction between the di-iron nuclear center and H 2 O 2 and provides insights for the exploitation of metalloenzymes.
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
Organizational Affiliation:
