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Superoxide dismutase (SOD) is an antioxidant enzyme involved in the defense system against reactive oxygen species (ROS). SOD catalyzes the dismutation reaction of superoxide radical anion (O2) to hydrogen peroxide, which is then catalyzed to innocuous O2 and H2O by glutathione peroxidase and catalase. Several classes of SOD have been identified. These include intracellular copper, zinc SOD (Cu, Zn-SOD/SOD-1), mitochondrial manganese SOD (Mn-SOD/SOD-2) and extracellular Cu, Zn-SOD (EC-SOD/SOD-3). SOD1 is found in all eukaryotic species as a homodimeric 32 kDa enzyme containing one each of Cu and Zn ion per subunit. The manganese containing 80 kDa tetrameric enzyme SOD2, is located in the mitochondrial matrix in close proximity to a primary endogenous source of superoxide, the mitochondrial respiratory chain. SOD3 is a heparin-binding multimer of disulfide-linked dimers, primarily expressed in human lungs, vessel walls and airways. SOD4 is a copper chaperone for superoxide dismutase (CCS), which specifically delivers Cu to copper/zinc superoxide dismutase. CCS may activate copper/zinc superoxide dismutase through direct insertion of the Cu cofactor.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: indophenoloxidase B; IPO B; manganese SOD; manganese superoxide dismutase; manganese-containing superoxide dismutase; mangano-superoxide dismutase; mitochondrial superoxide dismutase 2; Mn superoxide dismutase; Superoxide dimutase 2, mitochondrial; superoxide dismutase; superoxide dismutase (Mn type); superoxide dismutase 2, mitochondrial; Superoxide dismutase [Mn], mitochondrial
基因别名: IPO-B; IPOB; Mn-SOD; MNSOD; MVCD6; Sod-2; SOD2
UniProt ID: (Human) P04179, (Rat) P07895, (Mouse) P09671
Entrez Gene ID: (Human) 6648, (Pig) 100154319, (Rat) 24787, (Mouse) 20656