Superoxide dismutase

{
  "id": "MLC-T-CHM-011605",
  "term": "Superoxide dismutase",
  "field": "Chemistry",
  "definition": "An enzyme that converts two superoxide radicals into one molecule of oxygen and one of hydrogen peroxide, a reaction called dismutation, using a catalytic metal ion such as copper, manganese, iron, or nickel. It is a first line of antioxidant defense in almost every oxygen-exposed cell. Humans have three forms: cytosolic SOD1 (copper and zinc), mitochondrial SOD2 (manganese), and extracellular SOD3 (copper and zinc).",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2007, 79, 1153. 'Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)' on page 1316 (https://doi.org/10.1351/pac200779071153)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/superoxide-dismutase/"
}