Free manganese (II) and iron (II) cations can act as intracellular cell controls.
D002413:Cations, Divalent / Q000378:metabolism; D002451:Cell Compartmentation; D002455:Cell Division; D002468:Cell Physiological Phenomena; D004789:Enzyme Activation; D005296:Ferrous Compounds / Q000502:physiology*; D007501:Iron / Q000502:physiology*; D008345:Manganese / Q000502:physiology*; D008954:Models, Biological; D010084:Oxidation-Reduction; D011506:Proteins / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism
D002413:Cations, Divalent; D005296:Ferrous Compounds; D011506:Proteins; D008345:Manganese; D007501:Iron; D013482:Superoxide Dismutase