title: Spectroscopic investigation of rubredoxin and ferredoxin.
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D005288:Ferredoxins; D007501:Iron; D010084:Oxidation-Reduction; D011506:Proteins; D013057:Spectrum Analysis; D013455:Sulfur
chemical_list: D005288:Ferredoxins; D011506:Proteins; D013455:Sulfur; D007501:Iron