| Field | Specification |
|---|---|
| Target | |
| Alternative names | Eukaryotic translation initiation factor 4B; eIF-4B; EIF4B |
| UniProt # | |
| Host | |
| Clone | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthesized peptide derived from human Phospho-eIF4B (S406) |
| Molecular weight | |
| Purification | |
| Cellular localization | |
| Concentration | |
| Form | Liquid |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
Clone 29E04 is a rabbit monoclonal antibody that recognizes eukaryotic translation initiation factor 4B (gene EIF4B) phosphorylated at Ser406 in human, mouse and rat samples and is validated for Western blot and IHC. The predicted molecular weight is 69.2 kDa, and the supplier reports an observed band at about 80 kDa.
eIF4B is a translation initiation factor that binds RNA near the 5′ cap and stimulates the helicase activity of eIF4A. It helps the ribosome load onto structured mRNAs and is regulated by phosphorylation downstream of mTOR and MAPK signaling.
| Target | Eukaryotic translation initiation factor 4B (gene EIF4B; UniProt P23588, human) — phosphorylated at Ser406 |
|---|---|
| Clone | 29E04 |
| Host / Clonality / Isotype | Rabbit / Monoclonal / IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Liquid |
| Formulation | PBS (pH 7.4); 150 mM NaCl; 0.02% sodium azide; 50% glycerol; plus stabilizers |
| Calculated MW | 69.2 kDa |
| Observed MW | 80 kDa |
| Storage | Long term: −20 °C for up to 12 months. Frequent use: 4 °C for up to 1 month. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 1:500–1:2000 |
|---|---|
| Immunohistochemistry | 1:50–1:200 |
Samples with a confirmed band (WB): HeLa cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Immunogen
Synthetic phosphopeptide around Ser406 of human eIF4B.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. The samples tested by the supplier (listed above) are a practical starting point for positive controls. Because the antibody is phospho-specific, signal depends on the phosphorylation state of the sample; a phosphatase-treated lysate is a useful negative control.
Safety
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.
