title: A superhyperfine interaction involving 33-S in the iron-containing proteins of Azotobacter vinelandii.
mesh_terms: D001395:Azotobacter; D001426:Bacterial Proteins; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004578:Electron Spin Resonance Spectroscopy; D013460:Sulfur Isotopes
chemical_list: D001426:Bacterial Proteins; D013460:Sulfur Isotopes