Product Name

Superoxide Dismutase from human erythrocytes

Synonym

SOD, Superoxide: superoxide oxidoreductase

Assay

≥2,500 units/mg protein

CAS Number

9054-89-1

MDL number

MFCD00132404

Suitability

BioReagent

l Physical and Chemical Information

Appearance

White to Off White essentially salt-free, lyophilized powder

l Biological Information

Biochem/Physiol Actions

Catalyzes the dismutation of superoxide radicals to hydrogen peroxide and molecular oxygen. Plays a critical role in the defense of cells against the toxic effects of oxygen radicals. Competes with nitric oxide (NO) for superoxide anion (which reacts with NO to form peroxynitrite), thereby SOD promotes the activity of NO. SOD has also been shown to suppress apoptosis in cultured rat ovarian follicles, neural cell lines, and transgenic mice.

Preparation Note

SOD is soluble in water (20 mg/ml) yielding a colorless to blue-green solution. SOD is also soluble in aqueous buffers such as 0.1 M potassium phosphate, pH 7.5.

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.

l Packaging & Storage

Storage temp.

-20°C

l Precautions and Disclaimer

This product is for R&D use only, not for drug, household, or other uses.

l References

1. http://www.drugbank.ca

2. https://ncit.nci.nih.gov

3. https://www.ncbi.nlm.nih.gov