• Product name
    Anti-alpha 1 Fetoprotein antibody [EPR9309]
    See all alpha 1 Fetoprotein primary antibodies
  • Description
    Rabbit monoclonal [EPR9309] to alpha 1 Fetoprotein
  • Host species
  • Tested applications
    Suitable for: WB, IHC-P, ICC/IF, IP, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant fragment within Human alpha 1 Fetoprotein. The exact sequence is proprietary.

  • Positive control
    • Human plasma, HepG2 and Human fetal liver lysates, Human moderately differentiated hepatocellular carcinoma and Human poorly differentiated hepatocellular carcinoma tissues, HepG2 cells
  • General notes

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.


    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab169552 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 1/1000 - 1/10000. Detects a band of approximately 70 kDa (predicted molecular weight: 68 kDa).
IHC-P 1/50 - 1/100.
ICC/IF 1/100 - 1/250.
IP 1/10 - 1/100.
Flow Cyt 1/50.

ab172730-Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.


  • Function
    Binds copper, nickel, and fatty acids as well as, and bilirubin less well than, serum albumin. Only a small percentage (less than 2%) of the human AFP shows estrogen-binding properties.
  • Tissue specificity
    Plasma. Synthesized by the fetal liver and yolk sac.
  • Sequence similarities
    Belongs to the ALB/AFP/VDB family.
    Contains 3 albumin domains.
  • Developmental stage
    Occurs in the plasma of fetuses more than 4 weeks old, reaches the highest levels during the 12th-16th week of gestation, and drops to trace amounts after birth. The serum level in adults is usually less than 40 ng/ml. AFP occurs also at high levels in the plasma and ascitic fluid of adults with hepatoma.
  • Post-translational
    Independent studies suggest heterogeneity of the N-terminal sequence of the mature protein and of the cleavage site of the signal sequence.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • Afp antibody
    • AFPD antibody
    • Alpha fetoglobulin antibody
    • Alpha fetoprotein antibody
    • Alpha fetoprotein precursor antibody
    • Alpha-1-fetoprotein antibody
    • Alpha-fetoglobulin antibody
    • Alpha-fetoprotein antibody
    • alpha-fetoprotein, Hereditary persistence of, included antibody
    • FETA antibody
    • FETA_HUMAN antibody
    • Hereditary persistence of alpha fetoprotein antibody
    • HPAFP antibody
    see all


  • Immunohistochemical analysis of paraffin embedded human moderately differentiated hepatocellular carcinoma tissue labeling alpha 1 Fetoprotein with ab169552 antibody at 1/50.

  • All lanes : Anti-alpha 1 Fetoprotein antibody [EPR9309] (ab169552) at 1/1000 dilution

    Lane 1 : Human plasma lysate
    Lane 2 : HepG2 lysate
    Lane 3 : Human fetal liver lysate

    Lysates/proteins at 10 µg per lane.

    All lanes : HRP labelled goat anti-rabbit at 1/2000 dilution

    Predicted band size: 68 kDa
    Observed band size: 70 kDa
    why is the actual band size different from the predicted?

  • Immunofluorescent analysis of HepG2 cells labeling alpha 1 Fetoprotein with ab169552 at 1/100.
  • Immunoprecipitation. ab169552 at 1/1000 staining alpha 1 Fetoprotein in HepG2 cell lysate immunoprecipitated using ab169552 at 1/10. Predicted band size : 68 kDa.
  • Flow Cytometry analysis of HepG2 (human hepatocellular carcinoma) cells labeling alpha 1 Fetoprotein with purified ab169552 at 1/50 dilution (red). The secondary antibody was Goat anti rabbit IgG (Alexa Fluor® 488) at 1/2000 dilution. A Rabbit monoclonal IgG (Black) was used as the isotype control and cells without incubation with primary antibody and secondary antibody (Blue) were used as unlabeled control.

  • Immunohistochemical analysis of paraffin embedded Human poorly differentiated hepatocellular carcinoma tissue labeling alpha 1 Fetoprotein with ab169552 antibody at 1/50.


This product has been referenced in:
  • Yanagi Y  et al. In vivo and ex vivo methods of growing a liver bud through tissue connection. Sci Rep 7:14085 (2017). IHC ; Rat . Read more (PubMed: 29074999) »
  • Xin H  et al. Establishment and characterization of 7 novel hepatocellular carcinoma cell lines from patient-derived tumor xenografts. PLoS One 9:e85308 (2014). IHC-P ; Human . Read more (PubMed: 24416385) »
See all 2 Publications for this product

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