Human Glutathione Peroxidase 4 Antibody Pair - BSA and Azide free is a kit containing recombinant capture and detector antibodies in a carrier-free formulation for the measurement of Human Glutathione Peroxidase 4.
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Key facts
- Assay type
- ELISA set
- Reactive species
- Human
- Range
- 39.1 - 2500 pg/mL
Reactivity data
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application sELISA | Reactivity Reacts | Dilution info - | Notes - |
Target data
Function
Essential antioxidant peroxidase that directly reduces phospholipid hydroperoxide even if they are incorporated in membranes and lipoproteins (By similarity). Can also reduce cholesterol hydroperoxide and thymine hydroperoxide (By similarity). Plays a key role in protecting cells from oxidative damage by preventing membrane lipid peroxidation (By similarity). Required to prevent cells from ferroptosis, a non-apoptotic cell death resulting from an iron-dependent accumulation of lipid reactive oxygen species (PubMed:24439385). The presence of selenocysteine (Sec) versus Cys at the active site is essential for life: it provides resistance to overoxidation and prevents cells against ferroptosis (By similarity). The presence of Sec at the active site is also essential for the survival of a specific type of parvalbumin-positive interneurons, thereby preventing against fatal epileptic seizures (By similarity). May be required to protect cells from the toxicity of ingested lipid hydroperoxides (By similarity). Required for normal sperm development and male fertility (By similarity). Essential for maturation and survival of photoreceptor cells (By similarity). Plays a role in a primary T-cell response to viral and parasitic infection by protecting T-cells from ferroptosis and by supporting T-cell expansion (By similarity). Plays a role of glutathione peroxidase in platelets in the arachidonic acid metabolism (PubMed:11115402). Reduces hydroperoxy ester lipids formed by a 15-lipoxygenase that may play a role as down-regulator of the cellular 15-lipoxygenase pathway (By similarity). Can reduce fatty acid-derived hydroperoxides (PubMed:11115402, PubMed:36608588). Can also reduce small soluble hydroperoxides such as H2O2, cumene hydroperoxide and tert-butyl hydroperoxide (PubMed:17630701, PubMed:36608588).
Alternative names
Phospholipid hydroperoxide glutathione peroxidase GPX4, PHGPx, Glutathione peroxidase 4, GPx-4, GSHPx-4, GPX4
What's included?
Recommended products
Human Glutathione Peroxidase 4 Antibody Pair - BSA and Azide free is a kit containing recombinant capture and detector antibodies in a carrier-free formulation for the measurement of Human Glutathione Peroxidase 4.
Key facts
- Assay type
- ELISA set
- Reactive species
- Human
- Range
- 39.1 - 2500 pg/mL
- Assay Platform
- Reagents
Storage
- Shipped at conditions
- Blue Ice
- Appropriate short-term storage conditions
- +4°C
- Appropriate long-term storage conditions
- +4°C
- Storage information
- +4°C
Notes
Human Glutathione Peroxidase 4 Antibody Pair - BSA and Azide free (ab309258) is a matched pair of unconjugated recombinant rabbit monoclonal capture and detection antibodies used to quantify human Glutathione Peroxidase 4 in sandwich ELISAs and many other pair-based applications.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
The pair can be used in variety of assays and platforms including but not limited to:
- Sandwich ELISA
- FRET/TR-FRET/HTRF
- Meso Scale Discovery® (MSD®)
- Bead-based assays
- AlphaLISA®/AlphaScreen®
- DELFIA® immunoassays
- Simoa® and Single Molecule Counting (SMC™) immunoassays
- Multiplex
Our antibody pairs are supplied in a carrier-free format that is conjugation-ready:
- Buffer free of BSA, sodium azide, and glycerol for higher conjugation efficiency.
- Concentration of ~1 mg/ml as measured by the protein A280 method.
We can label antibodies for you: get in touch today to discuss how we can help accelerate your assay development with custom conjugation services.
Pairs are screened in biological samples, including plasma and serum, to ensure specificity in complex samples.
Please note:
The recommended antibody orientation is based on internal optimization in sandwich ELISA. Antibody orientation is assay dependent and needs to be optimized for each assay type.
The range provided for this antibody pair is based on initial sandwich ELISA validation data using recombinant protein. Performance and range of the antibody pair will depend on the specific characteristics of your assay, including standard protein selection.
We guarantee the product works in sandwich ELISA, but we do not guarantee the sensitivity or dynamic range of the antibodies in other assays.
Antibody properties:
Capture antibody: recombinant rabbit monoclonal (unconjugated) – 100 µg
Detector antibody: recombinant rabbit monoclonal (unconjugated) - 100 µg
Concentration: ~1 mg/ml
Storage buffer: 100% PBS
Form: Liquid
Isotype: IgG
Recombinant monoclonal antibodies offer several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free production
Meso Scale Discovery and MSD are registered trademarks of Meso Scale Diagnostics, LLC.
AlphaLISA, AlphaScreen, and DELFIA are registered trademarks of PerkinElmer, Inc.
Simoa is a registered trademark of Quanterix, Inc.
SMC is a registered trademark of Merck KGaA, Darmstadt, Germany.
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
Glutathione Peroxidase 4 (GPX4) also known as PHGPx acts as an important enzyme in protecting cells from oxidative damage by reducing lipid hydroperoxides to their alcohols and free hydrogen peroxide to water. It has a mass of approximately 20 kDa. GPX4 is widely expressed in various tissues including the brain testis kidney and liver underlining its significance in different physiological processes. GPX4 is essential in cellular anti-oxidant defense making it a potential marker in studies using GPX4 western blot techniques.
- Biological function summary
GPX4 plays an important role in protecting cellular membranes from lipid peroxidation by acting alone which differentiates it from other glutathione peroxidases that work in a complex. It is necessary for the production of glutathione products and helps maintain redox homeostasis by converting glutathione peroxides. This action prevents cell death pathways linked to oxidative stress and ensures cellular integrity particularly in sensitive tissues like the brain and reproductive organs.
- Pathways
GPX4 integrates into important cellular antioxidant pathways. Specifically it functions within the glutathione metabolic pathway collaborating with related proteins like glutathione synthetase and glutathione reductase. GPX4 is also involved in ferroptosis regulation a cell death pathway critically linked to glutathione levels. It helps balance redox-sensitive signaling and metabolic activities demonstrating synergy with other antioxidant enzymes in the cellular response to oxidative stress.
- Associated diseases and disorders
Research connects GPX4 deficiency to neurological disorders and cancer. Its important antioxidative activity makes it significant in preventing neurodegenerative diseases such as Alzheimer's where it interacts with proteins like PINK1. GPX4 also shows relevance in cancer as its altered expression may increase vulnerability to cell death suggesting its potential role in chemotherapy resistance and therapy development.
Product promise
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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
1 product image
Sandwich ELISA - Human Glutathione Peroxidase 4 Antibody Pair - BSA and Azide free (ab309258)
Sandwich ELISA of ab309258 with the capture antibody dilution at 2 µg/mL and detector antibody dilution at 0.5 µg/mL.
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Product protocols
- Visit the general protocols
- Visit troubleshooting
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