Iron-Sulfur ProteinsElectron Transport Complex IIIIronIron Chelating AgentsHydrazonesSulfurGlutaredoxinsSulfur CompoundsOxidation-ReductionElectron Spin Resonance SpectroscopyOxidoreductasesMolecular Sequence DataIron OverloadIron, DietarySulfur DioxideSulfur IsotopesMitochondriaAmino Acid SequenceAmino Acids, SulfurIron Isotopes