| Field | Specification |
|---|---|
| Target | |
| Alternative names | Eukaryotic initiation factor 4A-I; eIF-4A-I; eIF4A-I; ATP-dependent RNA helicase eIF4A-1; EIF4A1; DDX2A; EIF4A |
| Gene ID | |
| UniProt # | |
| Host | |
| Clone | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human EIF4A1, identical to the related mouse and rat sequences. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
Clone 11B8 is a mouse monoclonal antibody that recognizes eukaryotic initiation factor 4A-I (gene EIF4A1) in human, mouse and rat samples and is validated for Western blot, IHC, ICC/IF and flow cytometry. The predicted molecular weight is 46.2 kDa, and the supplier reports an observed band at about 46 kDa.
eIF4A1 is a DEAD-box RNA helicase and part of the cap-binding eIF4F complex. It unwinds secondary structure in mRNA 5′ untranslated regions so the small ribosomal subunit can bind and scan, and it is studied in translation control and as a target of natural product inhibitors such as silvestrol.
| Target | Eukaryotic initiation factor 4A-I (gene EIF4A1; UniProt P60842, human) |
|---|---|
| Clone | 11B8 |
| Host / Clonality / Isotype | Mouse / Monoclonal / Mouse IgG2b |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 46.2 kDa |
| Observed MW | 46 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.1–0.25 µg/mL (Human, Mouse, Rat) |
|---|---|
| IHC (paraffin sections) | 2–5 µg/mL (Human) |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human, Mouse, Rat) |
Samples with a confirmed band (WB): human HeLa cells, human Jurkat cells, human MCF-7 cells, human HEK293 cells, human HepG2 cells, human K562 cells, rat PC-12 cells, mouse spleen tissue, mouse lung tissue, mouse RAW264.7 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 50 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.25 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:10000, ECL detection.
Samples with confirmed staining (IHC): human gastric cancer tissue, human breast cancer tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): Caco-2 cells.
Samples with a confirmed signal (flow cytometry): Caco-2 cells, HEPA1–6 cells, RH35 cells.
Immunogen
Synthetic peptide from the N-terminal region of human EIF4A1. The peptide sequence is conserved in mouse and rat.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places eukaryotic initiation factor 4A-I in the cytoplasm and cell membrane. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
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.
