Recombinant Anti-alpha 1 Fetoprotein antibody [EPR20667] (ab213328)


  • Product name

    Anti-alpha 1 Fetoprotein antibody [EPR20667]
    See all alpha 1 Fetoprotein primary antibodies
  • Description

    Rabbit monoclonal [EPR20667] to alpha 1 Fetoprotein
  • Host species

  • Tested applications

    Suitable for: WB, ICC/IF, Flow Cytmore details
  • Species reactivity

    Reacts with: Mouse, Rat
  • Immunogen

    Recombinant fragment within Mouse alpha 1 Fetoprotein aa 200-600. The exact sequence is proprietary.
    Database link: P02772

  • Positive control

    • WB: Hepa 1-6 whole cell lysate; Mouse fetal liver and placenta lysates; Rat placenta lysate. ICC/IF: Hepa 1-6 cells. Flow Cyt: Hepa 1-6 cells.
  • General notes

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

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab213328 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. Detects a band of approximately 70 kDa (predicted molecular weight: 67 kDa).
ICC/IF 1/100.
Flow Cyt 1/500.


  • 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


  • Lanes 1-2 : Anti-alpha 1 Fetoprotein antibody [EPR20667] (ab213328) at 1/1000 dilution
    Lanes 3-4 : Anti-alpha 1 Fetoprotein antibody [EPR20667] (ab213328) at 1/5000 dilution

    Lane 1 : Hepa1-6 (mouse hepatoma epithelial cell line) whole cell lysate
    Lane 2 : Rat placenta lysate
    Lane 3 : Mouse fetal liver lysate
    Lane 4 : Mouse placenta lysate

    Lysates/proteins at 20 µg per lane.

    All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/100000 dilution

    Developed using the ECL technique.

    Predicted band size: 67 kDa
    Observed band size: 70 kDa
    why is the actual band size different from the predicted?

    Blocking/Dilution buffer: 5% NFDM/TBST.

    Exposure time: Lane 1: 10 seconds; Lane 2/4: 1 second; Lane 3: 3 seconds.

    The observed molecular weight is consistent with the literature (PMID: 18525461).

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed. 0.1% Triton X-100 permeabilized Hepa1-6 (mouse hepatoma epithelial cell line) cells labeling alpha 1 Fetoprotein with ab213328 at 1/100 dilution followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution (green). Confocal image showing cytoplasmic staining on Hepa1-6 cell line.

    The nuclear counter stain is DAPI (blue). Tubulin is detected with Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) (ab195889) (red) at 1/200 dilution.

    Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution.

  • Flow cytometric analysis of 4% paraformaldehyde-fixed Hepa1-6 (mouse hepatoma epithelial cell line) cell line labeling alpha 1 Fetoprotein with ab213328 at 1/500 dilution (red) compared with a Rabbit IgG, monoclonal [EPR25A] - Isotype Control (ab172730) (black) and an unlabeled control (cells without incubation with primary antibody and secondary antibody) (blue). Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) at 1/2000 dilution was used as the secondary antibody.


ab213328 has not yet been referenced specifically in any publications.

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