The enzymes and redox proteins, which participate in the oxidation of ferrous ion by the acidophilic iron-oxidizing bacterium Thiobacillus ferrooxidans, have been isolated and characterized. They are Fe(II)-cytochrome c oxidoreductase, cytochromes c-552(s), c-552(m) and c-550(m), rusticyanin, and cytochrome c oxidase. On the basis of the interactions of these components, an electron transfer system has been proposed which seems to function in the oxidation of ferrous ion by the bacterium.
Tateo Yamanaka. (2003). Molecular aspects of the electron transfer system which participates in the oxidation of ferrous ion by Thiobacillus ferrooxidans. FEMS Microbiology Reviews, 17(4), 401–413. https://doi.org/10.1016/0168-6445(95)00023-2