| Field | Specification |
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| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human GPX3 was used as the immunogen for the GPX3 antibody. |
| Isotype | |
| Product Type | |
| Purity | |
| Reactivity | |
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| Target | |
| UniProt # |
Overview
GPX3 Antibody / Glutathione peroxidase 3 is a anti-GPX3 Rabbit antibody Polyclonal (rabbit origin) supplied in Lyophilized format. Recommended for workflows such as Western blot (WB) with listed reactivity in Mouse, Rat.
Key elements and design rationale
- Target: GPX3
- Antibody details: Rabbit, Polyclonal (rabbit origin), isotype Rabbit IgG
- Format: Lyophilized
- Applications (as listed): WB
Biological background
Functionally, GPX3 antibody identifies a 226-amino-acid glycoprotein containing a selenocysteine residue at its active site. GPX3 is primarily synthesized in the kidney proximal tubules and secreted into the plasma, where it scavenges peroxides to prevent oxidative injury to lipids, proteins, and DNA. Its catalytic activity depends on the presence of glutathione as a reducing cofactor and selenium availability for selenocysteine biosynthesis.
The GPX3 gene is located on chromosome 5q33.1 and encodes the only extracellular form among the glutathione peroxidase family. It is expressed in kidney, lung, liver, and several endocrine tissues, contributing to systemic antioxidant defense. GPX3 levels fluctuate with oxidative stress, inflammation, and selenium intake, making it a biomarker of redox status.
Pathologically, reduced GPX3 expression has been linked to cancer, diabetes, and cardiovascular diseases. Loss of GPX3 activity enhances oxidative DNA damage and supports tumor growth through redox imbalance. Conversely, elevated GPX3 expression in response to stress reflects a protective adaptation. Research with GPX3 antibody aids studies in oxidative stress, redox biology, and disease biomarker development.
GPX3 antibody is suitable for western blotting, immunohistochemistry, and ELISA to measure GPX3 protein in serum, plasma, and tissues.
Structurally, Glutathione peroxidase 3 forms a homotetramer with each subunit containing a conserved catalytic triad for peroxide reduction. The enzyme�s secretion signal sequence directs it to the extracellular space, where it complements intracellular antioxidant systems. This antibody enables quantitative and qualitative analysis of GPX3 in health and disease contexts.
Research relevance and current trends
- Connecting protein-level changes to phenotype using orthogonal readouts (genetic perturbation, transcriptomics, imaging).
- Considering isoforms and post-translational regulation when interpreting protein-level changes.
- Comparing results across species and model systems with matched controls.
Common research applications
- Western blotting: compare relative abundance and activation-state changes across conditions.
Interpret changes in signal alongside appropriate controls and, when relevant, in parallel with total-protein or pathway readouts.
Notes for experimental interpretation
- Signal can reflect expression level, isoform composition, and post-translational state; interpret results in the context of your model system and stimuli.
- Species differences and sample matrices can influence epitope recognition; prioritize matched controls and orthogonal confirmation when feasible.
Antibody notes: Polyclonal antibodies recognize multiple epitopes, which can broaden the epitope footprint and may increase sensitivity in some contexts.
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
