| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Eukaryotic translation initiation factor 4B; eIF-4B; EIF4B |
| Conjugate | |
| Formulation | |
| Host | |
| Immunogen | Synthetic phosphopeptide derived from human eIF4B around the phosphorylation site of Serine 422. |
| Molecular Weight | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage |
Product Overview
p-eIF4B(Ser422) polyclonal antibody detects endogenous levels of eIF4B protein only when phosphorylated at Ser422.
Required for the binding of mRNA to ribosomes. Functions in close association with EIF4-F and EIF4-A. Binds near the 5'-terminal cap of mRNA in presence of EIF-4F and ATP. Promotes the ATPase activity and the ATP-dependent RNA unwinding activity of both EIF4-A and EIF4-F.It is phosphorylated at Ser-422 by RPS6KA1 and RPS6KB1.phosphorylation enhances the affinity of EIF4B for the EIF3 complex
Validated Applications
| Application | Recommended Dilution |
|---|---|
| Western Blot (WB) | 1:500~1:1000 |
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 | ~ 80 kDa |
| Modification | Phosphorylated |
| UniProt / Swiss-Prot | P23588 |
| Storage | Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. |
Immunogen / Antigen
Synthetic phosphopeptide derived from human eIF4B around the phosphorylation site of Serine 422.
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. 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 eIF4B around the phosphorylation site of Serine 422.
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.
