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Key Documents

S5395

Sigma-Aldrich

Superoxide Dismutase from bovine erythrocytes

BioReagent, ≥3,000 units/mg protein, lyophilized powder, suitable for cell culture

동의어(들):

SOD, Superoxide: superoxide oxidoreductase

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About This Item

CAS Number:
효소 위원회 번호:
EC Number:
MDL number:
UNSPSC 코드:
12352204
NACRES:
NA.75

생물학적 소스

bovine erythrocytes

제품 라인

BioReagent

형태

lyophilized powder

특이 활성도

≥3,000 units/mg protein

분자량

32.5 kDa

포장

pkg of 15000 units

기술

cell culture | mammalian: suitable

pH

7.6-10.5

배송 상태

dry ice

저장 온도

−20°C

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일반 설명

Superoxide Dismutase from bovine erythrocytes is a metalloprotein which disproportionates superoxide anion radicals. It is a 31.5 kDa copper binding protein and displays a conserved domain and fold. It is a homodimer with one copper and zinc ion per subunit and has antiparallel “greek-key” β barrel fold.

애플리케이션

Superoxide Dismutase (SOD) from bovine erythrocytes has been used:
  • for measuring the superoxide radical using the electron paramagnetic resonance spin in human brain microvascular endothelial cells
  • for measuring superoxide production in cytochrome C assay in peripheral blood mononuclear cells
  • as a standard in characterization of hen egg SOD using Fourier-transform infrared spectroscopy (FTIR) and matrix-assisted laser desorption/ionization (MALDI) analysis

생화학적/생리학적 작용

Superoxide Dismutase from bovine erythrocytes catalyzes the dismutation of superoxide radicals to hydrogen peroxide and molecular oxygen. It serves as an antioxidant and 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.

단위 정의

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.

분석 메모

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

픽토그램

Health hazard

신호어

Danger

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


시험 성적서(COA)

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Partial biochemical characterization of Cu, Zn-superoxide dismutase extracted from eggs of hens (Gallus gallus domesticus)
Wawrzykowski J and Kankofer M
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Structure of fully reduced bovine copper zinc superoxide dismutase at 1.15
Hough MA and Hasnain SS
Structure, 11(8), 937-946 (2003)

프로토콜

Enzymatic Assay of Superoxide Dismutase

Chromatograms

application for HPLC

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