Validated using a knockout cell line

Recombinant Anti-Peroxiredoxin 1/PAG antibody [EPR5433] (ab109498)


  • Product name

    Anti-Peroxiredoxin 1/PAG antibody [EPR5433]
    See all Peroxiredoxin 1/PAG primary antibodies
  • Description

    Rabbit monoclonal [EPR5433] to Peroxiredoxin 1/PAG
  • Host species

  • Tested applications

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

    Reacts with: Mouse, Human
  • Immunogen

    Synthetic peptide within Human Peroxiredoxin 1/PAG. The exact sequence is proprietary.

  • Positive control

    • WB: MCF-7, 293T, and K562 cell lysates IHC-P: Kidney tissue , Thyroid carcinoma tissue IF: 293T cells
  • 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.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab109498 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 1/10000 - 1/50000. Detects a band of approximately 22 kDa (predicted molecular weight: 22 kDa).
IHC-P 1/250 - 1/500. Perform antigen retrieval
Flow Cyt 1/10 - 1/1000.

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


ICC/IF 1/100 - 1/250.
  • Application notes
    Is unsuitable for IP.
  • Target

    • Function

      Involved in redox regulation of the cell. Reduces peroxides with reducing equivalents provided through the thioredoxin system but not from glutaredoxin. May play an important role in eliminating peroxides generated during metabolism. Might participate in the signaling cascades of growth factors and tumor necrosis factor-alpha by regulating the intracellular concentrations of H(2)O(2). Reduces an intramolecular disulfide bond in GDPD5 that gates the ability to GDPD5 to drive postmitotic motor neuron differentiation.
    • Sequence similarities

      Belongs to the ahpC/TSA family.
      Contains 1 thioredoxin domain.
    • Post-translational

      Phosphorylated on Thr-90 during the M-phase, which leads to a more than 80% decrease in enzymatic activity.
    • Cellular localization

      Cytoplasm. Melanosome. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.
    • Information by UniProt
    • Database links

    • Alternative names

      • Heme binding 23 kDa protein antibody
      • MSP23 antibody
      • Natural killer cell-enhancing factor A antibody
      • NKEF A antibody
      • NKEF-A antibody
      • NKEFA antibody
      • OSF3 antibody
      • Osteoblast specific factor 3 antibody
      • PAG antibody
      • Paga antibody
      • PAGB antibody
      • Peroxiredoxin 1 antibody
      • Peroxiredoxin-1 antibody
      • PRDX1 antibody
      • PRDX1_HUMAN antibody
      • Proliferation associated gene A antibody
      • Proliferation-associated gene protein antibody
      • PRX1 antibody
      • PrxI antibody
      • TDPX2 antibody
      • Thioredoxin peroxidase 2 antibody
      • Thioredoxin-dependent peroxide reductase 2 antibody
      see all


    • Lane 1: Wild-type HAP1 cell lysate (20 µg)
      Lane 2: Peroxiredoxin 1/PAG knockout HAP1 cell lysate (20 µg)
      Lane 3: A431 cell lysate (20 µg)
      Lane 4: Jurkat cell lysate (20 µg)
      Lanes 1 - 4: Merged signal (red and green). Green - ab109498 observed at 23 kDa. Red - loading control, ab8245, observed at 37 kDa.

      ab109498 was shown to specifically react with Peroxiredoxin 1/PAG when Peroxiredoxin 1/PAG knockout samples were used. Wild-type and Peroxiredoxin 1/PAG knockout samples were subjected to SDS-PAGE. ab109498 and ab8245 (loading control to GAPDH) were both diluted 1/10 000 and incubated overnight at 4°C. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1/10 000 dilution for 1 h at room temperature before imaging.

    • Overlay histogram showing HeLa cells stained with ab109498 (red line). The cells were fixed with 80% methanol (5 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 (ab109498, 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) (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.
    • All lanes : Anti-Peroxiredoxin 1/PAG antibody [EPR5433] (ab109498) at 1/10000 dilution

      Lane 1 : MCF-7 cell lysate
      Lane 2 : 293T cell lysate
      Lane 3 : K562 cell lysates

      Lysates/proteins at 10 µg per lane.

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

      Predicted band size: 22 kDa
      Observed band size: 22 kDa

    • Immunohistochemical analysis of paraffin-embedded kidney tissue using ab109498 at 1/250
    • Immunohistochemical analysis of paraffin-embedded thyroid carcinoma tissue using ab109498 at 1/250.
    • Immunofluorescent analysis of 293T cells labeled with ab109498 at 1/10.


    This product has been referenced in:

    • Shi XJ  et al. Pro-Apoptotic Effects of JDA-202, a Novel Natural Diterpenoid, on Esophageal Cancer Through Targeting Peroxiredoxin I. Antioxid Redox Signal 27:73-92 (2017). Human . Read more (PubMed: 27650197) »
    • Ziegler YS  et al. Integration of Breast Cancer Secretomes with Clinical Data Elucidates Potential Serum Markers for Disease Detection, Diagnosis, and Prognosis. PLoS One 11:e0158296 (2016). WB . Read more (PubMed: 27355404) »
    See all 4 Publications for this product

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