• Product name

    Anti-KDM5B / PLU1 / Jarid1B antibody [EPR12704] - BSA and Azide free
    See all KDM5B / PLU1 / Jarid1B primary antibodies
  • Description

    Rabbit monoclonal [EPR12704] to KDM5B / PLU1 / Jarid1B - BSA and Azide free
  • Host species

  • Tested applications

    Suitable for: WB, ICC/IFmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide within Human KDM5B/ PLU1/ Jarid1B aa 200-300. The exact sequence is proprietary.
    Database link: Q9UGL1

  • Positive control

    • WB: Wild-type HAP1 whole cell lysate; HeLa whole cell lysate.
  • General notes

    Ab232590 is the carrier-free version of ab181089. This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    ab232590 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    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 ab232590 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 Use at an assay dependent concentration. Detects a band of approximately 170 kDa (predicted molecular weight: 175 kDa).
ICC/IF Use at an assay dependent concentration.


  • Function

    Histone demethylase that demethylates 'Lys-4' of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-9' or H3 'Lys-27'. Demethylates trimethylated, dimethylated and monomethylated H3 'Lys-4'. Acts as a transcriptional corepressor for FOXG1B and PAX9. Favors the proliferation of breast cancer cells by repressing tumor suppressor genes such as BRCA1 and HOXA5. In contrast, may act as a tumor suppressor for melanoma.
  • Tissue specificity

    Ubiquitously expressed, with highest levels in testis. Down-regulated in melanoma and glioblastoma. Up-regulated in breast cancer (at protein level).
  • Sequence similarities

    Belongs to the JARID1 histone demethylase family.
    Contains 1 ARID domain.
    Contains 1 JmjC domain.
    Contains 1 JmjN domain.
    Contains 3 PHD-type zinc fingers.
  • Domain

    Both the JmjC domain and the JmjN domain are required for enzymatic activity.
    The 2 first PHD-type zinc finger domains are required for transcription repression activity.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • Cancer/testis antigen 31 antibody
    • CT31 antibody
    • Histone demethylase JARID1B antibody
    • JARID1B antibody
    • Jumonji AT rich interactive domain 1B antibody
    • Jumonji/ARID domain-containing protein 1B antibody
    • Kdm5b antibody
    • KDM5B_HUMAN antibody
    • Lysine (K) specific demethylase 5B antibody
    • Lysine demethylase 5B antibody
    • Lysine specific demethylase 5B antibody
    • Lysine-specific demethylase 5B antibody
    • PLU-1 antibody
    • PLU1 antibody
    • PPP1R98 antibody
    • Protein phosphatase 1 regulatory subunit 98 antibody
    • PUT1 antibody
    • putative DNA/chromatin binding motif antibody
    • RBBP2H1A antibody
    • RBP2 like antibody
    • RBP2-H1 antibody
    • Retinoblastoma-binding protein 2 homolog 1 antibody
    • Retinoblastoma-binding protein 2 homolog 1A antibody
    see all


  • Immunofluorescent analysis of HeLa cells (-20°C Acetone-fixed) labeling KDM5B / PLU1 / Jarid1B with ab181089 at 1/100 dilution followed by Goat anti rabbit IgG (Alexa Fluor® 488) secondary antibody at 1/200 dilution. Counter-stained with DAPI (blue).

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab181089).

  • Lane 1: Wild-type HAP1 whole cell lysate (20 µg)
    Lane 2: KDM5B knockout HAP1 whole cell lysate (20 µg)
    Lane 3: HeLa whole cell lysate (20 µg)

    Lanes 1 - 3: Merged signal (red and green). Green - ab181089 observed at 170 kDa. Red - loading control, ab18058, observed at 120 kDa.

    ab181089 was shown to recognize KDM5B in wild-type HAP1 cells as signal was lost at the expected MW in KDM5B knockout cells. Additional cross-reactive bands were observed in the wild-type and knockout cells. Wild-type and KDM5B knockout samples were subjected to SDS-PAGE. ab181089 and ab18058 (Mouse anti-Vinculin loading control) were incubated overnight at 4°C at 1.9 μg/ml and 1/20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab181089).


ab232590 has not yet been referenced specifically in any publications.

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