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Native Horseradish Superoxide Dismutase

Cat No.
NATE-0679
Description
Superoxide dismutases (SOD) are enzymes that alternately catalyze the dismutation (or partitioning) of the superoxide (O2−) radical into either ordinary molecular oxygen (O2) or hydrogen peroxide (H2O2). Superoxide is produced as a by-product of oxygen metabolism and, if not regulated, causes many types of cell damage. Hydrogen peroxide is also damaging, but less so, and is degraded by other enzymes such as catalase. Thus, SOD is an important antioxidant defense in nearly all living cells exposed to oxygen. One exception is Lactobacillus plantarum and related lactobacilli, which use a different mechanism to prevent damage from reactive (O2−).
Abbr
SOD, Native (Horseradish)
Alias
SOD
Source
Horseradish
Applications
Superoxide dismutase from horseradish has been used in a study to assess the correlation between CuZn superoxide dismutase and glutathione reductase, and environmental and xenobiotic stress tolerance in maize inbreds. Superoxide dismutase from horseradish has also been used in a study to investigate chemiluminometric enzyme sensors for flow-injection analysis.
Form
Lyophilized powder containing potassium phosphate buffer salts
Enzyme Commission Number
EC 1.15.1.1
Activity
1,000-4,000 units/mg protein
CAS No.
9054-89-1
Composition
Protein, > 70% biuret
Unit Definition
One unit will inhibit reduction of cytochrome c by 50% in a coupled system with xanthine oxidase at pH 7.8 at 25°C in a 3.0 mL reaction volume. Xanthine oxidase concentration should produce an initial ΔA550 of 0.025 ± 0.005 per min.
Stability
−20°C
Synonyms
EC 1.15.1.1; 9054-89-1; SOD; Superoxide:superoxide oxidoreductase; Superoxide Dismutase
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