• Product name

    Anti-GAB2 antibody [EP369Y]
    See all GAB2 primary antibodies
  • Description

    Rabbit monoclonal [EP369Y] to GAB2
  • Host species

  • Specificity

    This antibody is predicted to detect the splice isoform 2 based on sequence homology.
  • Tested applications

    Suitable for: WB, ICC/IF, Flow Cytmore details
    Unsuitable for: IHC or IP
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide within Human GAB2 aa 600-700. The exact sequence is proprietary.

  • Positive control

    • PC12 cells; K562 cells; MCF7 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 ab32365 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. Detects a band of approximately 97 kDa (predicted molecular weight: 74 kDa).
ICC/IF 1/50.
Flow Cyt 1/20.

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

  • Application notes
    Is unsuitable for IHC or IP.
  • Target

    • Function

      Adapter protein which acts downstream of several membrane receptors including cytokine, antigen, hormone, cell matrix and growth factor receptors to regulate multiple signaling pathways. Regulates osteoclast differentiation mediating the TNFRSF11A/RANK signaling. In allergic response, it plays a role in mast cells activation and degranulation through PI-3-kinase regulation. Also involved in the regulation of cell proliferation and hematopoiesis.
    • Sequence similarities

      Belongs to the GAB family.
      Contains 1 PH domain.
    • Domain

      The SH3-binding motifs mediate interaction with SHC1 and GRB2.
      The PH domain mediates phosphatidylinositol 3,4,5-trisphosphate and phosphatidylinositol 3,4-bisphosphate binding.
    • Post-translational

      Phosphorylated on tyrosine residue(s) by the thrombopoietin receptor (TPOR), stem cell factor receptor (SCFR), and T-cell and B-cell antigen receptors, gp130, IL-2R and IL-3R (By similarity). Phosphorylated upon stimulation of TNFRSF11A/RANK by TNFSF11/RANKL (By similarity). Phosphorylated upon EGF stimulation. Phosphorylated on tyrosine residues by HCK upon IL6 signaling.
      Dephosphorylated by PTPN11.
    • Cellular localization

      Cytoplasm. Cell membrane.
    • Information by UniProt
    • Database links

    • Alternative names

      • GAB 2 antibody
      • Gab2 antibody
      • GAB2_HUMAN antibody
      • Grb 2 associated binder 2 antibody
      • GRB 2 associated binding protein 2 antibody
      • Grb2 associated binder 2 antibody
      • GRB2 associated binder 2 pp100 antibody
      • GRB2 associated binding protein 2 antibody
      • GRB2-associated binder 2 antibody
      • GRB2-associated-binding protein 2 antibody
      • Growth factor receptor bound protein 2 associated protein 2 antibody
      • Growth factor receptor bound protein 2-associated protein 2 antibody
      • KIAA0571 antibody
      • p97 antibody
      • PH domain containing adaptor molecule p97 antibody
      • pp100 antibody
      see all


    • All lanes : Anti-GAB2 antibody [EP369Y] (ab32365) at 1/500 dilution

      Lane 1 : K526 cell lysate
      Lane 2 : MCF-7 cell lysate

      Predicted band size: 74 kDa
      Observed band size: 97 kDa
      why is the actual band size different from the predicted?

    • Immunofluorescent staining of PC-12 cells
      using ab32365 at 1/50 dilution


    This product has been referenced in:

    • Tian LQ  et al. MicroRNA-197 inhibits cell proliferation by targeting GAB2 in glioblastoma. Mol Med Rep N/A:N/A (2016). WB . Read more (PubMed: 27035789) »
    • Pyarajan S  et al. Interleukin-3 (IL-3)-induced c-fos Activation Is Modulated by Gab2-Calcineurin Interaction. J Biol Chem 283:23505-9 (2008). WB . Read more (PubMed: 18586679) »
    See all 2 Publications for this product

    Customer reviews and Q&As

    1-2 of 2 Abreviews or Q&A


    Dear Sirs,

    I would like to query your technical support regarding the following antibodies:
    Ab62802,ab32365, ab78262 and ab92578.
    In order to detect changes in GAB2 and phospho-GAB2 levels we ordered several anti GAB2 and anti phospho-GAB2 antibodies from different sources.
    After trying several cell lysis conditions to minimize breakdown products, we settled for the cell lysis buffer by Cell signaling technologies (cat #3884 in combination with a protease inhibitor cocktail from Roche). Result where generated using the K562 cell line which is also mentioned in the datasheet of Ab62802,ab32365 and ab92578
    Using the competitors antibodies we are able to assure the availability of both GAB2 and phosphorylation site specific forms of phospho-GAB2.
    Unfortunately using the anti GAB2 antibodies ab62802,ab32365,ab92578 and ab78262 we are not able to get the desired results.
    Ab62802 does not yield a nice and clean band at the expected 80 to 90 KDa, instead we see a smear/aspecific binding to our membrane.
    The antibodies ab32365,ab92578 and ab78262 do not yield a band when using either lysates of K562 or IFN triggered Jurkat cells (according to the ab78262 datasheet).
    Since the competitors antibodies clearly show the availability of both GAB2 and pGAB2 in the K562 cell line we seriously doubt the effectiveness of the Ab62802,ab32365, ab78262 and ab92578 antibodies (please see attached pdf for a line up of the antibodies used (markings in blue are competitor products).
    Our question is, do you have any suggestion to alleviate our problems, we are somewhat at a loss here.
    Kind regards,

    Read More

    Thank you for contacting us.

    I am sorry to hear you are experiencing difficulties with our products. We take product complaints very seriously, and investigate every product that we feel may not be performing correctly.

    In order to better understand the problem, I’d like to send you a questionnaire with some questions about the protocol used.

    Once we receive the completed questionnaire, we will look at the protocol and see if there are any suggestions we can make that may improve the results.

    According to the image sent the three anti phosphorilated GAB2 antibodies show different patterns, both #1 and #3 do not show any bands and #2 however gives several bands. Are the three antibodies targeting the same phosphorilated site in the protein?

    I look forward to receiving your reply. Please do not hesitate to contact us if you need any more advice or information.

    Read More


    Hello! The blocking peptides for these antibodies have now been published in our catalog, they are ab133951 and ab133952. Please let me know if you have any further questions.

    Read More

    For licensing inquiries, please contact partnerships@abcam.com

    Sign up