superoxide dismutase 1 (sod1) enzyme. converts superoxide radical in hydrogen peroxide. gene mutations cause als (amyotrophic

superoxide dismutase sod enzyme radical free hydrogen peroxide antioxidant metalloprotein reactive species stress oxidative sod1 als amyotrophic lateral sclerosis mutation carcinoma hepatocellular antiinflammatory pdb1spd structure peptide protein amino acid molecule polypeptide polymer atoms science scientific disease health molecular model