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044865 Glutathione Peroxidase 3 (GPX3) BioAssay™ ELISA Kit (Human)

Specifications
References
Brand
BioAssay™
EU Commodity Code
38220000
UN DOT Shipping
UN2796 PGII
Shipping Temp
Blue Ice
Storage Temp
4°C/-20°C
Glutathione Peroxidase 3

Glutathione peroxidase 3 (GPX3; GSHPX3) is a selenium-dependent extracellular enzyme, protecting cells and enzymes from oxidative damage by catalyzing the reduction of hydrogen peroxide, lipid peroxides and organic hydroperoxides. GPX3 is involved in inflammatory bowel disease, in asthma and in diabetes. The activity of GPX3 is significantly reduced in the plasma and tissue of cancer patients. Recently, GPX3 was suggested to serve as a molecular marker for the diagnosis of clear cell type ovarian adenocarcinoma.

The Glutathione Peroxidase 3 (GPX3) BioAssay™ ELISA Kit is to be used for the in vitro quantitative determination of human GPX3 in serum, plasma and cell culture supernatant. This ELISA Kit is for research use only.
Assay Principle
This assay is a sandwich Enzyme Linked-Immunosorbent Assay (ELISA) for quantitative determination of human GPX3 in biological fluids. A polyclonal antibody specific for GPX3 has been precoated onto the 96-well microtiter plate. Standards and samples are pipetted into the wells for binding to the coated antibody. After extensive washing to remove unbound compounds, GPX3 is recognized by the addition of a biotinylated polyclonal antibody specific for GPX3 (Detection Antibody). After removal of excess biotinylated antibody, HRP labeled streptavidin (Detector) is added. Following a final washing, peroxidase activity is quantified using the substrate 3,3’,5,5’-tetramethylbenzidine (TMB). The intensity of the color reaction is measured at 450 nm after acidification and is directly proportional to the concentration of GPX3 in the samples.
Kit Components
044865A: Microtiter Strips, 1x96wells (6x16 wells) 044865B: Wash Buffer, 10X, 2x30ml 044865C: ELISA Buffer, 10X, 2x30ml 044865D: Detection Antibody, 1x20ul 044865E: Streptavidin (HRP) (Lyophilized), 1x2ug *044865F: GPX3 Standard (Lyophilized), 1x1vial 044865G: TMB Substrate Solution, 1x12ml 044865H: Stop Solution, 1N Sulfuric Acid, 1x12ml
Storage and Stability
Store *044865F powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
References
1. Chambers, L., et al., EMBO J. 5: 1221 (1986). 2. Takahashi, K., et al., J. Biochem. 108: 145 (1990). 3. Chu, F.F., et al., Blood 79: 3233 (1992). 4. Avissar, N., et al., J. Nutrition 121: 1243 (1991).
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