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Merck
CN

G6137

Glutathione Peroxidase from bovine erythrocytes

lyophilized powder, ≥300 units/mg protein

Synonym(s):

GSH-Px, Glutathione:hydrogen-peroxide oxido-reductase

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About This Item

CAS Number:
9013-66-5
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-749-6
MDL number:
MFCD00131195
EC Number:
1.11.1.9 (BRENDA, IUBMB)

Key Documents

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Product Name

Glutathione Peroxidase from bovine erythrocytes, lyophilized powder, ≥300 units/mg protein

biological source

bovine erythrocytes

form

lyophilized powder

specific activity

≥300 units/mg protein

mol wt

84.5 kDa

composition

Protein, 10-30% modified Warburg-Christian

shipped in

dry ice

storage temp.

−20°C

Quality Level

200

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Application

Glutathione Peroxidase from bovine erythrocytes has been used as an oxygen radical scavenger to study its effect on cytotoxicity of 1,3-dilinoleoylglycerol (DLG) against E1A-3Y1 cells.
Glutathione peroxidase from bovine erythrocytes was used as a positive control in cloning and characterization of full-length cDNAs encoding two glutathione peroxidases (GpXs) from Globodera rostochiensis. It was used for the determination of glutathione peroxidase activity in human milk.

Biochem/physiol Actions

Glutathione peroxidase helps to reduce (peroxides) H2O2 to water and lipid peroxides to lipid alcohols.
Glutathione peroxidase is an enzyme which reduced lipid hydroperoxides into their corresponding alcohols. It also reduces free hydrogen peroxide in to water. In vivo it is responsible for protecting hemoglobin from oxidative breakdown.
Protects cells against oxidative damage by catalyzing the reduction of hydrogen peroxide in the presence of reducing agent glutathione. In cellular membranes it may induce lipid peroxidation through the reduction of hydrogen peroxide or polyunsaturated fatty acid hydroperoxides.

General description

Glutathione peroxidase is an antioxidant enzyme that contains selenium. It is present in the glandular epithelium of human endometrium.

Other Notes

Note: At the reported pH optimum of 8.8, we have found the activity to be approx. 10 times that at pH 7.0. However, to remain consistent with literature and avoid complications arising from non-enzymatic oxidation of GSH, our unit is defined at pH 7.0.
One unit will catalyze the oxidation by H2O2 of 1.0 μmole of reduced glutathione to oxidized glutathione per min at pH 7.0 at 25 °C.

Physical form

Lyophilized powder containing 25% sucrose and 2.5% dithiothreitol with sodium phosphate buffer salts

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

低风险生物材料
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Certificates of Analysis (COA)

Lot/Batch Number
0000492679
0000492678
0000492678
0000492679
0000448377

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Yue Wang et al.
Analytical chemistry, 92(2), 1997-2004 (2019-12-21)
Solid evidence confirms that glutathione peroxidase (GPx) is a kind of vital protease in the first-line antioxidant defense system and participates in regulation of redox homeostasis as well as the pentose phosphate pathway. However, the current methods cannot achieve real-time
Reactive oxygen species, oxidative stress, and vascular biology in hypertension
Comprehensive hypertension, 337-344 (2007)
Hemoglobin catabolism. I. Glutathione peroxidase, an erythrocyte enzyme which protects hemoglobin from oxidative breakdown.
G C MILLS
The Journal of biological chemistry, 229(1), 189-197 (1957-11-01)
Angeles Torres et al.
Die Nahrung, 47(6), 430-433 (2004-01-20)
An analytical method for determining glutathione peroxidase (GPx) (EC 1.11.1.9) activity in whole blood has been adapted to human milk samples. The values obtained for precision (relative standard deviation: 8.4%), linearity and accuracy (recovery: 90.4%) indicate the adequacy of the
J T Jones et al.
Gene, 324, 47-54 (2003-12-25)
We report the cloning and characterisation of full-length DNAs complementary to RNA (cDNAs) encoding two glutathione peroxidases (GpXs) from a plant parasitic nematode, the potato cyst nematode (PCN) Globodera rostochiensis. One protein has a functional signal peptide that targets the
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Articles

Mitochondrial Stress and ROS

Cellular oxidative stress is countered by enzymatic scavengers and antioxidant modulators against reactive oxygen species damage.

线粒体应激和ROS

氧化应激，在一部分上，是由多种细胞过程产生的活性氧介导，并由诸如酶清除剂或抗氧化剂调节剂等细胞抗氧化剂机制所控制的。自由基，如活性氧，会通过细胞引起细胞损伤。

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