• Product name
  • Description
    Rabbit polyclonal to XBP1
  • Specificity
    This product will recognize only the non-spliced (shorter) form of XBP1.
  • Tested applications
    Suitable for: ICC/IF, WBmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide corresponding to 17 amino acids near to the C terminus of the human XBP1 protein.

  • Positive control



Our Abpromise guarantee covers the use of ab37151 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
ICC/IF Use a concentration of 2 µg/ml.
WB Use a concentration of 0.5 - 2 µg/ml. Detects a band of approximately 34 kDa (predicted molecular weight: 29 kDa).Can be blocked with Human XBP1 peptide (ab39909).


  • Function
    Transcription factor essential for hepatocyte growth, the differentiation of plasma cells, the immunoglobulin secretion, and the unfolded protein response (UPR). Acts during endoplasmic reticulum stress (ER) by activating unfolded protein response (UPR) target genes via direct binding to the UPR element (UPRE). Binds DNA preferably to the CRE-like element 5'-GATGACGTG[TG]N(3)[AT]T-3', and also to some TPA response elements (TRE). Binds to the HLA DR-alpha promoter. Binds to the Tax-responsive element (TRE) of HTLV-I.
  • Involvement in disease
    Genetic variations in XBP1 could be associated with susceptibility to major affective disorder type 7 (MAFD7) [MIM:612371]. Major affective disorders represent a class of mental disorders characterized by a disturbance in mood as their predominant feature.
  • Sequence similarities
    Belongs to the bZIP family.
    Contains 1 bZIP domain.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • Tax responsive element binding protein 5 antibody
    • Tax-responsive element-binding protein 5 antibody
    • TREB5 antibody
    • X box binding protein 1 antibody
    • X box binding protein 2 antibody
    • X-box-binding protein 1 antibody
    • XBP 1 antibody
    • XBP-1 antibody
    • XBP1 antibody
    • XBP1_HUMAN antibody
    • XBP2 antibody
    see all


  • Predicted band size : 29 kDa
  • All lanes : Anti-XBP1 antibody (ab37151) at 1 µg/ml

    Lane 1 : HepG2 (Human hepatocellular liver carcinoma cell line) Whole Cell Lysate
    Lane 2 : Human placenta tissue lysate - total protein (ab29745)

    Lysates/proteins at 10 µg per lane.

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 29 kDa
    Observed band size : 42 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 29 kDa,86 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 8 minutes


This product has been referenced in:
  • Fonseca AC  et al. Activation of the endoplasmic reticulum stress response by the amyloid-beta 1-40 peptide in brain endothelial cells. Biochim Biophys Acta 1832:2191-2203 (2013). Rat . Read more (PubMed: 23994613) »
  • Prell T  et al. The unfolded protein response in models of human mutant G93A amyotrophic lateral sclerosis. Eur J Neurosci 35:652-60 (2012). Human . Read more (PubMed: 22390177) »

See all 5 Publications for this product

Customer reviews and Q&As

Thank you for providing that information.

As I mentioned previously, with the exception of ab79483, we do guarantee that these antibodies should work in western blot on rat tissue. If we cannot resolve the issue you are having with the antibod...

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Thank you for contacting Abcam.

I am sorry that you are having some issues with our antibodies. All of the antibodies you mentioned should work in western blot in various species, however only ab30315 is known to work in IHC-P. Below is a list...

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Thank you for contacting us.

The correct antibody for detection of both splice forms (as described at the UniProt page for the mouse protein, http://www.uniprot.org/uniprot/O35426 ) is ab37152:

Click here (or use the following: ht...

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Thank you for confirming these details and for sending images of your results. I will forward these data to the lab, this will enable us to closely monitor the quality of our products. I am sorry the new lot ab37152 did not perform as stated on the dat...

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