27EDBD8A333331D19A80E385BE8A5C70A88605FA01FF8CF3E1D34BFD60815798E1ED0B10745BFD99F6522E5A0B7AAD37

E(0) is -280 mV for the 3Fe-4S and -530 mV for the 4Fe-4S clusters.

Source:http://purl.uniprot.org/SHA-384/27EDBD8A333331D19A80E385BE8A5C70A88605FA01FF8CF3E1D34BFD60815798E1ED0B10745BFD99F6522E5A0B7AAD37