https://click4r.com/posts/g/18....727124/20-best-tweet
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https://www.selleckchem.com/pr....oducts/ly3295668.htm
Both O2 and H2 O2 can oxidize iron at the ferroxidase center (FC) of Escherichia coli bacterioferritin (EcBfr) but mechanistic details of the two reactions need clarification. UV/Vis, EPR, and Mössbauer spectroscopies have been used to follow the reactions when apo-EcBfr, pre-loaded anaerobically with Fe2+ , was exposed to O2 or H2 O2 . We show that O2 binds di-Fe2+ FC reversibly, two Fe2+ ions are oxidized in concert and a H2 O2 molecule is formed and released to the solution. This peroxide molecule further oxidizes another di-Fe2+ F