Product Overview
This antibody detects endogenous levels of Histone H2A.X protein only when phosphorylated at Ser139, and does not cross-react with related proteins.
H2A.X is a member of the histone H2A family, 1 of 5 families of histone proteins involved in nucleosomal organization of chromatin. H2A.X is synthesised in G1 as well as S phase and is known to be important for recombination between immunoglobulin switch regions. A very early step in the response of mammalian cells to DNA double-strand breaks is the phosphorylation of histone H2A.X at serine 139 at the sites of DNA damage. There is a predicted acetylation at residue 1 and ubiquitination at reside 119. Phosphorylated H2A.X promotes DNA repair and maintains genomic stability.
Validated Applications
| Application | Recommended Dilution |
|---|---|
| Western Blot (WB) | 1:1000~2000 |
| Immunofluorescence (IF) | 1:200~500 |
Product Specifications
| Clonality | Monoclonal |
|---|---|
| Host Species | Mouse |
| Species Reactivity | Human, Mouse |
| Conjugate | Unconjugated |
| Purification | The antibody was affinity-purified from mouse ascites by affinity-chromatography using epitope-specific immunogen |
| Formulation | 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 |
| Molecular Weight | Predicted band size:15KDa Observed band size:15KDa |
| Modification | Phosphorylated |
| UniProt / Swiss-Prot | P16104 |
| Storage | Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. |
| Signaling Pathway(s) | Regulation of Apoptosis; Histone Lysine Methylation Pathway |
Immunogen / Antigen
Synthetic phosphopeptide derived from human Histone H2A.X around the phosphorylation site of Serine 139.
Safety & Handling
For Research Use Only (RUO). Not for diagnostic or therapeutic use. Handle as a potential biohazard in accordance with good laboratory practices.
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This antibody has been validated for WB, IF. Always refer to the product datasheet for recommended dilution ranges and appropriate positive control samples for each application type.
Validated reactivity has been confirmed for Human, Mouse. Cross-reactivity with additional species may exist based on sequence homology but has not been confirmed by the manufacturer. For unlisted species, we recommend running a preliminary validation experiment.
This antibody was raised in Mouse. For indirect detection (WB, IHC, IF), select an anti-Mouse secondary antibody that matches the isotype. For direct detection, check the variant selector for conjugated formats. Confirm secondary antibody compatibility before ordering.
Synthetic phosphopeptide derived from human Histone H2A.X around the phosphorylation site of Serine 139.
Please refer to the storage conditions on the product label and datasheet. As a general best practice: upon receipt, aliquot into single-use volumes to minimize freeze-thaw cycling, which can progressively reduce antibody performance and lead to aggregation.
Validated reactivity covers Human, Mouse samples. Performance can vary across different cell lines and tissue types depending on target antigen expression levels and epitope accessibility. We recommend verifying target expression in your specific model system using a known positive control before proceeding to experimental samples.
BioHippo offers customization and value-added services for qualified research programs:
- Bulk Pricing: Volume discounts available for orders of 5 or more units. Request a quote through the Contact Us page.
- Custom Conjugation: Select antibody products are available for custom conjugation to fluorophores, biotin, HRP, or other detection labels upon request. Minimum quantities apply.
- Custom Formats: Lyophilized or concentrated formats may be available for select products. Inquire before ordering.
- Technical Support: Our scientific team is available to assist with application optimization, protocol troubleshooting, and experimental design.
For customization inquiries, please use the Contact Us page or reach out to our support team directly.
