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CGP1

Sigma-Aldrich

Glutathione Peroxidase Cellular Activity Assay Kit

Sufficient for 100 colorimetric tests

Synonym(s):

Cellular glutathione peroxidase, c-GPx

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.32

Quality Level

usage

sufficient for 100 tests

shelf life

Kit is stable for 24 months when unopened.

detection method

colorimetric

shipped in

wet ice

storage temp.

−20°C

General description

The Glutathione Peroxidase Cellular Activity Assay kit is used to measure glutathione peroxidase in tissue extracts. The assay is based on the oxidation of glutathione (GSH) to oxidized glutathione (GSSG). This is catalyzed by GPx coupled to the recycling of GSSG back to GSH utilizing glutathione reductase and NADPH. The decrease in NADPH absorbance measured at 340 nm during the oxidation of NADPH to NADP is indicative of glutathione peroxidase activity since the enzyme is the rate-limiting factor of the coupled reactions.

Suitability

Suitable for the measureent of glutathione peroxidase in tissue extracts

Principle

The Glutathione Peroxidase Cellular Activity Assay kit is used to measure glutathione peroxidase in tissue extracts. The assay is based on the oxidation of glutathione (GSH) to oxidized glutathione (GSSG). This is catalyzed by GPx coupled to the recycling of GSSG back to GSH utilizing glutathione reductase and NADPH. The decrease in NADPH absorbance measured at 340 nm during the oxidation of NADPH to NADP is indicative of glutathione peroxidase activity since the enzyme is the rate-limiting factor of the coupled reactions.

Other Notes

This kit was tested with rabbit reticulocyte lysate and with glutathione peroxidase enzyme.

Kit Components Only

Product No.
Description

  • tert-Butyl hydroperoxide 1 mL

related product

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Liq. 3 - Muta. 2 - Org. Perox. F - Skin Corr. 1C - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.2 - Organic peroxides and self-reacting hazardous materials


Certificates of Analysis (COA)

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V R Arruda et al.
Neoplasma, 43(2), 99-102 (1996-01-01)
Red cell antioxidant enzymes have been recently studied in malignant lymphomas and the results are controversial. Hairy cell leukemia is a rare chronic lymphoproliferative disorder originating probably in a pluripotent stem cell. In the present study, glutathione peroxidase (Gpx), reduced
International Committee for Standardization in Haematology: recommended methods for red-cell enzyme analysis.
E Beutler et al.
British journal of haematology, 35(2), 331-340 (1977-02-01)
Diversity of glutathione peroxidases.
F Ursini et al.
Methods in enzymology, 252, 38-53 (1995-01-01)
Matthias L Jauslin et al.
Human molecular genetics, 11(24), 3055-3063 (2002-11-06)
Friedreich Ataxia (FRDA), the most prevalent of the inherited ataxias, is a multi-systemic disease with loss of sensory neurons and life-threatening hypertrophic cardiomyopathy as its most severe manifestations. Reduced levels of the mitochondrial protein frataxin lead to cell-damaging oxidative stress
Roxana Oana Cojocariu et al.
Brain sciences, 10(11) (2020-11-21)
Background and Objectives: Irritable bowel syndrome (IBS) is a well-known functional gastrointestinal (GI) disorder exhibiting a wide range of symptoms due to individual variability and multifactorial etiology. Stress exposure is a major risk factor for the development of IBS. Here

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