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SOD1 binds copper and zinc ions and is one of three superoxide dismutases responsible for destroying free superoxide radicals in the body. The encoded isozyme is a soluble cytoplasmic and mitochondrial intermembrane space protein, acting as a homodimer to convert naturally occurring, but harmful, superoxide radicals to molecular oxygen and hydrogen peroxide.
Superoxide dismutase (SOD, EC 1.15.1.1) is an enzyme that alternately catalyzes the dismutation (or partitioning) of the superoxide (O − 2 ) anion radical into normal molecular oxygen (O 2 ) and hydrogen peroxide ( H
Ni-SOD is the only superoxide dismutase with ligands other than histidine, aspartate or water. The amino acid residues that define the coordination sphere of Ni are cysteine -2, cysteine-6 and histidine-1.
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60 [23] mg/dL: 1 [37] 4 ... There may also be an equivocal interval, where it is uncertain whether there is a significantly increased level. Test Negative Equivocal
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