• Product name

  • Description

    Rabbit polyclonal to eIF4E
  • Host species

  • Tested applications

    Suitable for: WB, IP, ICC/IF, IHC-Pmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide within Human eIF4E aa 1-100. The exact sequence is proprietary. NP_001959.1


    Database link: P06730

  • Positive control

    • WB: HL-60, SW620, MCF7 and HEK-293T whole cell lysate; Mouse brain lysate; Rat testis lysate. IHC-P: Human lung cancer and stomach tissue. ICC/IF: U-2 OS cells. IP: HEK-293T cell lysate.



Our Abpromise guarantee covers the use of ab238519 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/2000. Predicted molecular weight: 25 kDa.
IP 1/50 - 1/100.
ICC/IF 1/50 - 1/200.
IHC-P 1/50 - 1/100.


  • Function

    Its translation stimulation activity is repressed by binding to the complex CYFIP1-FMR1 (By similarity). Recognizes and binds the 7-methylguanosine-containing mRNA cap during an early step in the initiation of protein synthesis and facilitates ribosome binding by inducing the unwinding of the mRNAs secondary structures. Component of the CYFIP1-EIF4E-FMR1 complex which binds to the mRNA cap and mediates translational repression. In the CYFIP1-EIF4E-FMR1 complex this subunit mediates the binding to the mRNA cap.
  • Sequence similarities

    Belongs to the eukaryotic initiation factor 4E family.
  • Post-translational

    Phosphorylation increases the ability of the protein to bind to mRNA caps and to form the eIF4F complex.
  • Information by UniProt
  • Database links

  • Alternative names

    • AUTS19 antibody
    • CBP antibody
    • eIF 4E antibody
    • eIF 4F 25 kDa subunit antibody
    • EIF 4F antibody
    • eIF-4E antibody
    • eIF-4F 25 kDa subunit antibody
    • eIF4E antibody
    • EIF4E1 antibody
    • EIF4EL1 antibody
    • EIF4F antibody
    • Eukaryotic translation initiation factor 4 E antibody
    • Eukaryotic translation initiation factor 4E antibody
    • Eukaryotic translation initiation factor 4E like 1 antibody
    • IF4E_HUMAN antibody
    • Messanger RNA Cap Binding Protein eIF 4E antibody
    • MGC111573 antibody
    • mRNA cap binding protein antibody
    • mRNA cap-binding protein antibody
    see all


  • All lanes : Anti-eIF4E antibody (ab238519) at 1/1000 dilution

    Lane 1 : HL-60 (human promyelocytic leukemia cell line) whole cell lysate
    Lane 2 : SW620 whole cell lysate
    Lane 3 : MCF7 (human breast adenocarcinoma cell line) whole cell lysate
    Lane 4 : HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate
    Lane 5 : Mouse brain tissue lysate
    Lane 6 : Rat testis tissue lysate

    Lysates/proteins at 25 µg per lane.

    All lanes : HRP Goat Anti-Rabbit IgG (H+L) at 1/10000 dilution

    Developed using the ECL technique.

    Predicted band size: 25 kDa

    Exposure time: 10 seconds

    Blocking buffer: 3% non-fat dry milk in TBST.

  • U-2 OS (human bone osteosarcoma epithelial cell line) cells stained for eIF4E (Green) using ab238519 at 1/100 dilution in ICC/IF analysis. Nuclear counterstain was DAPI (Blue).

  • eIF4E was immunoprecipitated from 200 μg of HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) cell extract using 3 μg of ab238519. Western blot was performed from the immunoprecipitate using ab238519 at 1/1000 dilution.

    Lane 1: HEK-293T cell extract (input).
    Lane 2: Control IgG instead of ab238519 in HEK-293T cell extract.
    Lane 3: ab238519 IP in HEK-293T cell extract.

  • Paraffin-embedded human stomach tissue stained for eIF4E using ab238519 at 1/100 dilution in immunohistochemical analysis.

  • Paraffin-embedded human lung cancer tissue stained for eIF4E using ab238519 at 1/100 dilution in immunohistochemical analysis.


ab238519 has not yet been referenced specifically in any publications.

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