Detects human, mouse, and rat Glutathione Peroxidase 3/GPX3 in Western blots and detects recombinant human and recombinant mouse Glutathione Peroxidase 3/GPX3 in direct ELISAs. In direct ELISAs, approximately 15% cross-reactivity with recombinant human (rh) GPX5 and recombinant mouse (rm) GPX1 is observed, and less than 4% cross-reactivity with rhGPX4, rhGPX6, and rmGPX2 is observed.
Glutathione Peroxidase 3/GPX3 in Human Kidney.
Glutathione Peroxidase 3/GPX3 was detected in immersion fixed paraffin-embedded sections of human kidney using 15 µg/mL Goat Anti-Human/Mouse/Rat Glutathione Peroxidase 3/GPX3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4199) overnight at 4 °C. Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific labeling was localized to the cytoplasm in tubules. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Detection of Human/Mouse/Rat Glutathione Peroxidase 3 by Western Blot.
Western blot shows lysates of human plasma, mouse kidney tissue, and rat kidney tissue. PVDF membrane was probed with 0.5 µg/mL of Goat Anti-Human/Mouse/Rat Glutathione Peroxidase 3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4199) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Glutathione Peroxidase 3 at approximately 24kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human Glutathione Peroxidase 3/GPX3 by Simple WesternTM.
Simple Western lane view shows human serum, loaded at 0.2 mg/mL. A specific band was detected for Glutathione Peroxidase 3/GPX3 at approximately 29 kDa (as indicated) using 25 µg/mL of Goat Anti-Human/Mouse/Rat Glutathione Peroxidase 3/GPX3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4199) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Glutathione Peroxidase 3/GPX3
Glutathione Peroxidase 3 (GPX3), also known as Plasma Glutathione Peroxidase, is a 226 amino acid member of the glutathione peroxidase antioxidant enzyme family. The Glutathione Peroxidase family protects cell surfaces, extracellular fluid components, and enzymes from oxidative stress by catalysing the reduction of hydrogen peroxide, lipid peroxides, and organic hydroperoxide using reduced glutathione. GPX3 is secreted into plasma and like GPX1, is an ~100 kDa homotetramer consisting of four identical 23 kDa subunits, each containing a selenocysteine residue at the active site. GPX3 exhibits highest levels of mRNA expression in liver (human only), kidney, heart and lung tissues. Mouse GPX3 shares 89% and 99% amino acid identity with human and rat GPX3, respectively.
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