Superoxide oxidase
Definition:
EC Tree > 1 Oxidoreductases > 1.10 Acting on diphenols and related substances as donors > 1.10.3 With oxygen as acceptor > 1.10.3.17 superoxide oxidase
Superoxide oxidase is a membrane-bound di-heme enzyme identified in Escherichia coli that detoxifies superoxide in the periplasm. In vivo the reaction runs in the direction shown and produces oxygen; superoxide production was observed only in vitro, when the enzyme was incubated with ubiquinol. Overall, 2 superoxide plus ubiquinol yield O2, ubiquinone and 2 H+.
Superoxide oxidase is a membrane-bound di-heme enzyme identified in Escherichia coli that detoxifies superoxide in the periplasm. In vivo the reaction runs in the direction shown and produces oxygen; superoxide production was observed only in vitro, when the enzyme was incubated with ubiquinol. Overall, 2 superoxide plus ubiquinol yield O2, ubiquinone and 2 H+.
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