Recombinant Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] (ab134189)


  • Product name

    Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y]
    See all MHC class I+HLA A+HLA B primary antibodies
  • Description

    Rabbit monoclonal [EPR1394Y] to MHC class I + HLA A + HLA B
  • Host species

  • Specificity

    In our hands the antibody did not work in WB with mouse samples, but customer data suggest that reactivity in ICC/IF and IHC. The target shows high sequence homology with HLA-C and HLA-E, and it is possible that this antibody will detect these proteins too.
  • Tested applications

    Suitable for: WB, IHC-P, ICC, Flow Cytmore details
    Unsuitable for: IP
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthetic peptide within Human MHC class I. The exact sequence is proprietary.

  • Positive control

    • Raji and THP1 cell lysates, Human tonsil tissue
  • General notes

    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.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Stable for 12 months at -20°C.
  • Storage buffer

    pH: 7.40
    Preservative: 0.01% Sodium azide
    Constituents: 59% PBS, 40% Glycerol, 0.5% BSA
  • Concentration information loading...
  • Purity

    Protein A purified
  • Clonality

  • Clone number

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab134189 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 41 kDa (predicted molecular weight: 41 kDa).
IHC-P 1/100 - 1/250. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
ICC 1/100 - 1/250.
Flow Cyt 1/20 - 1/1000.

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

  • Application notes
    Is unsuitable for IP.
  • Target


    • Immunohistochemical analysis of paraffin-embedded Human tonsil labelling MHC class I with ab134189 at 1/100 dilution.
    • Overlay histogram showing Raji cells stained with ab134189 (red line). The cells were fixed with 4% paraformaldehyde (10 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab134189, 1/1000 dilution) for 30 min at 22°C. The secondary antibody used was Alexa Fluor® 488 goat anti-rabbit IgG (H&L) (ab150077) at 1/2000 dilution for 30 min at 22°C. Isotype control antibody (black line) was rabbit IgG (monoclonal) (0.1μg/1x106 cells) used under the same conditions. Unlabelled sample (blue line) was also used as a control. Acquisition of >5,000 events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter. This antibody gave a positive signal in Raji cells fixed with 80% methanol (5 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.
    • All lanes : Anti-MHC class I + HLA A + HLA B antibody [EPR1394Y] (ab134189) at 1/1000 dilution

      Lane 1 : Raij cell lysate
      Lane 2 : THP1 cell lysate

      Lysates/proteins at 10 µg per lane.

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

      Predicted band size: 41 kDa
      Observed band size: 41 kDa


    This product has been referenced in:

    • Klein S  et al. Immune-phenotyping of pleomorphic dermal sarcomas suggests this entity as a potential candidate for immunotherapy. Cancer Immunol Immunother 68:973-982 (2019). Read more (PubMed: 30963193) »
    • Duisit J  et al. Perfusion-decellularization of human ear grafts enables ECM-based scaffolds for auricular vascularized composite tissue engineering. Acta Biomater 73:339-354 (2018). IHC-P ; Human . Read more (PubMed: 29654989) »
    See all 7 Publications for this product

    Customer reviews and Q&As

    1-3 of 3 Abreviews or Q&A

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
    Mouse Tissue sections (spleen)
    Antigen retrieval step
    Heat mediated - Buffer/Enzyme Used: autoclave treatment
    Blocking step
    Peroxidase-Blocking Solution, Dako REAL™ (s2023) as blocking agent for 10 minute(s) · Concentration: 100% · Temperature: 26°C

    浩央 佐藤

    Verified customer

    Submitted Jul 27 2015

    Immunohistochemistry (Frozen sections)
    Blocking step
    Serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 24°C
    Human Tissue sections (Brain)
    Yes - 0.1M PBS with 3% TritonX100

    Dr. Ruma Raha-Chowdhury

    Verified customer

    Submitted Nov 05 2014


    Vielen Dank für Ihre Anfrage.

    Die meisten unserer Antikörper sindmit hitzeinduzierter Antigendemaskierung (HIER)getestet. Leider konnte ich keinen AntiMHC Klasse1 Antikörper finden, der schon einmalmit Proteinase getestet wurde in IHC-P.

    Generell garantieren wir, dass unsere Antikörper wie auf dem Datenblatt beschrieben funktionieren. Dies schließt jedoch eine spezifische Antigendemaskierungsmethode nicht mit ein und wir erwarten von unseren Anwendern, dass Protokoll und Antigendemaskierungsmethode entsprechend optimiert werden.

    Ich habe auch noch einige Informationen über EDTA pH 9 Antigendemaskierungen angehängt. Ich nehme an, sie versuchen eine Doppelfärbung zu optimieren? Vielleicht wäre EDTA -pH9 die richtige Wahl?

    Es tut mir leid, dass ich Ihnen in diesem Fall nicht weiterhelfen konnte.

    Ich wünsche Ihnen viel Erfolg bei der Suche.

    Read More

    For licensing inquiries, please contact

    Sign up