title: Letter: Iron to sulfur bonding in cytochrome C studied by x-ray photoelectron spectroscopy.
mesh_terms: D001665:Binding Sites; D003574:Cytochrome c Group; D007501:Iron; D013057:Spectrum Analysis / Q000379:methods; D013455:Sulfur; D014961:X-Ray Diffraction
chemical_list: D003574:Cytochrome c Group; D013455:Sulfur; D007501:Iron