| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | eIF4E ( phospho S209 ); eIF-4E; eIF4E; mRNA cap-binding protein; eIF-4F 25 kDa subunit; EIF4E; 1977; EIF4E; 133440; P06730; CBP; EIF4EL1; EIF4F; MGC111573; |
| Conjugate | |
| Formulation | |
| Host | |
| Immunogen | Synthetic phosphopeptide derived from human eIF4E around the phosphorylation site of Serine 209. |
| Molecular Weight | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage |
Product Overview
p-eIF4E (S209) polyclonal antibody detects endogenous levels of eIF4E protein only when phosphorylated at Ser209.
eIF4E, a protein modulates translation of maternal mRNAs in early embryos before the onset of zygotic transcription. eIF4E also influences the overall rate of translation. eIF4E binds to the 7 methyl GTP cap structure of eukaryotic mRNAs. Phosphorylation of eIF4E on serine 209 regulates the affinity of this protein for the 7 methyl GTP cap and/or RNA. Phosphorylation also enhances the interaction of eIF4E with eIF4G, which form a complex known as eIF4F. eIF4E phosphorylation is correlated with increased translational rate in a number of cell types.
Validated Applications
| Application | Recommended Dilution |
|---|---|
| Western Blot (WB) | 1:500~1:1000 |
| Immunohistochemistry (IHC) | 1:50~1:200 |
Product Specifications
| Clonality | Polyclonal |
|---|---|
| Host Species | Rabbit |
| Isotype | IgG |
| Species Reactivity | Human, Mouse, Rat |
| Conjugate | Unconjugated |
| Purification | The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen |
| Formulation | Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 |
| Molecular Weight | ~ 25 kDa |
| Modification | Phosphorylated |
| UniProt / Swiss-Prot | P06730 |
| Storage | Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. |
| Signaling Pathway(s) | Insulin &Glucose Signaling |
Immunogen / Antigen
Synthetic phosphopeptide derived from human eIF4E around the phosphorylation site of Serine 209.
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, IHC. 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, Rat. 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 Rabbit. For indirect detection (WB, IHC, IF), select an anti-Rabbit 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 eIF4E around the phosphorylation site of Serine 209.
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, Rat 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.
