title: Horseradish peroxidase compound I: evidence for spin coupling between the heme iron and a 'free' radical.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D006418:Heme; D006735:Horseradish Peroxidase / Q000032:analysis*; D007501:Iron; D010544:Peroxidases / Q000032:analysis*
chemical_list: D005609:Free Radicals; D006418:Heme; D007501:Iron; D006735:Horseradish Peroxidase; D010544:Peroxidases