title: Letter: Nuclear magnetic resonance studies of hemoproteins. Restricted rotation of a heme side chain methyl group in some ferric myoglobin complexes and its implication in van der Waals contact in the heme side chain environments.
mesh_terms: D000818:Animals; D006418:Heme; D006420:Hemeproteins; D006736:Horses; D007501:Iron; D009682:Magnetic Resonance Spectroscopy; D009211:Myoglobin; D009904:Optical Rotation
chemical_list: D006420:Hemeproteins; D009211:Myoglobin; D006418:Heme; D007501:Iron