21. Aerotolerant anaerobes have superoxide dismutase and peroxidase but don't have catalase. 22. This oxidase is a multicomponent enzyme that is activated to produce superoxide anion. 23. Normally, superoxide dismutase sops up highly reactive and damaging chemicals called free radicals. 24. During combustion, potassium forms peroxides and superoxides . 25. Superoxide dismutase is also not expressed in neural crest cells in the developing fetus.26. An example with true fractional oxidation states for equivalent atoms is potassium superoxide ,. 27. In addition, they suggest mitochondrial superoxide anion plays an essential part in aging. 28. Mitochondrial manganese superoxide dismutase ( MnSOD ) normally keeps ROS and RNS in check. 29. This gene encodes a member of the superoxide dismutase ( SOD ) protein family. 30. Superoxide dismutase enzymes sound to be organic substances.