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S8160

Superoxide Dismutase from bovine liver

Name: Superoxide Dismutase from bovine liver
Brand: SIGMA

lyophilized powder, ≥1500 units/mg protein

Sinónimos:

SOD, Superoxide: superoxide oxidoreductase

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Número CAS:

9054-89-1

UNSPSC Code:

12352204

NACRES:

NA.54

EC Number:

232-943-0

MDL number:

MFCD00132404

Número CE:

1.15.1.1 (BRENDA, IUBMB)

Specific activity:

≥1500 units/mg protein

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Propiedades

form

lyophilized powder

Quality Segment

200

specific activity

≥1500 units/mg protein

mol wt

32.5 kDa

composition

Protein, ≥70% biuret

UniProt accession no.

P00442

storage temp.

−20°C

Gene Information

cow ... SOD1(281495)

Descripción

General description

Research area: Cell signalingSuperoxide Dismutase (SOD), a low molecular weight protein that is found in all aerobic cells of microorganisms, plants, and animals. It exists as three distinct families such as manganese SOD, copper–zinc SOD, and extracellular SOD.

Application

Superoxide dismutase from bovine liver has been used in a study to determine that hypercholesterolemia increases endothelial superoxide anion production. Superoxide dismutase from bovine liver has also been used in a study to investigate diazo coupling, subunit interactions, and electrophoretic variants of bovine erythrocyte superoxide dismutase. It has also been used as a component of the assay buffer in thequantification of reactive oxygen species (ROS) by O2k fluorometry.

Biochem/physiol Actions

Superoxide Dismutase catalyzes the dismutation of superoxide radicals to hydrogen peroxide and molecular oxygen. It plays a critical role in the defense of cells against the toxic effects of oxygen radicals. It 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.

Physical form

Lyophilized powder containing potassium phosphate buffer salts

Analysis Note

For assay method, see McCord, J.M. and Fridovich, I., J. Biol. Chem., 244, 6049 (1969).

Other Notes

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 ΔA₅₅₀of 0.025 ± 0.005 per min.

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Este artículo	S7446	S9697	S7571
Sigma-Aldrich S8160 Superoxide Dismutase from bovine liver	Sigma-Aldrich S7446 Superóxido dismutasa from bovine erythrocytes	Sigma-Aldrich S9697 Superoxide Dismutase bovine	Sigma-Aldrich S7571 Superóxido dismutasa from bovine erythrocytes
description lyophilized powder, ≥1500 units/mg protein	description BioUltra, lyophilized powder, ≥4,500 units/mg protein, ≥97% (SDS-PAGE)	description recombinant, expressed in E. coli, lyophilized powder, ≥2500 units/mg protein, ≥90% (SDS-PAGE)	description lyophilized powder, ≥3,000 units/mg protein, Protein ≥95 % by biuret
specific activity ≥1500 units/mg protein	specific activity ≥4,500 units/mg protein	specific activity ≥2500 units/mg protein	specific activity ≥3,000 units/mg protein
Gene Information cow ... SOD1(281495)	Gene Information -	Gene Information -	Gene Information cow ... SOD1(281495), SOD2(281496)
form lyophilized powder	form lyophilized powder	form lyophilized powder	form lyophilized powder
UniProt accession no. P00442	UniProt accession no. -	UniProt accession no. P00442	UniProt accession no. P00442, P41976
mol wt 32.5 kDa	mol wt 32.5 kDa	mol wt -	mol wt 32.5 kDa
storage temp. −20°C	storage temp. −20°C	storage temp. −20°C	storage temp. −20°C