Recombinant Human KDM4A / JHDM3A / JMJD2A protein (ab125541)



  • NatureRecombinant
  • SourceBaculovirus infected Sf9 cells
  • Amino Acid Sequence
    • AccessionO75164
    • SpeciesHuman
    • Molecular weight150 kDa including tags
    • Amino acids1 to 886


Our Abpromise guarantee covers the use of ab125541 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications

    Western blot


  • Purity> 90 % Densitometry.
    Purity was determined to be >90% by densitometry.
  • FormLiquid
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.

    pH: 7.50
    Constituents: 0.31% Glutathione, 0.002% PMSF, 0.004% DTT, 0.79% Tris HCl, 0.003% EDTA, 25% Glycerol, 0.88% Sodium chloride

General Info

  • Alternative names
    • JHDM3A
    • JmjC domain containing histone demethylation protein 3A
    • JmjC domain-containing histone demethylation protein 3A
    • JMJD2
    • JMJD2A
    • jumonji C domain containing histone demethylase 3A
    • Jumonji domain containing 2
    • Jumonji domain containing 2A
    • Jumonji domain containing protein 2A
    • Jumonji domain-containing protein 2A
    • KDM4A
    • KIAA0677
    • Lysine (K) specific demethylase 4A
    • Lysine-specific demethylase 4A
    • TDRD14A
    • Tudor domain containing 14A
    see all
  • FunctionHistone demethylase that specifically demethylates 'Lys-9' and 'Lys-36' residues of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-4', H3 'Lys-27' nor H4 'Lys-20'. Demethylates trimethylated H3 'Lys-9' and H3 'Lys-36' residue, while it has no activity on mono- and dimethylated residues. Demethylation of Lys residue generates formaldehyde and succinate. Participates in transcriptional repression of ASCL2 and E2F-responsive promoters via the recruitment of histone deacetylases and NCOR1, respectively.
    Isoform 2: Crucial for muscle differentiation, promotes transcriptional activation of the Myog gene by directing the removal of repressive chromatin marks at its promoter. Lacks the N-terminal demethylase domain.
  • Tissue specificityUbiquitous.
  • Sequence similaritiesBelongs to the JHDM3 histone demethylase family.
    Contains 1 JmjC domain.
    Contains 1 JmjN domain.
    Contains 2 PHD-type zinc fingers.
    Contains 2 Tudor domains.
  • DomainThe 2 Tudor domains recognize and bind methylated histone H3 'Lys-4' residue (H3K4me). Double Tudor domain has an interdigitated structure and the unusual fold is required for its ability to bind methylated histone tails. Trimethylated H3 'Lys-4' (H3K4me3) is bound in a cage of 3 aromatic residues, 2 of which are from the Tudor domain 2, while the binding specificity is determined by side-chain interactions involving residues from the Tudor domain 1. The Tudor domains are also able to bind trimethylated histone H3 'Lys-9' (H3K9me3), di- and trimethylated H4 'Lys-20' (H4K20me2 and H4K20me3). Has high affinity for H4K20me2, blocking recruitment of proteins such as TP53BP1.
  • Post-translational
    Ubiquitinated by RNF8 and RNF168 following DNA damage, leading to its degradation. Degradation promotes accessibility of H4K20me2 mark for DNA repair protein TP53BP1, which is then recruited.
  • Cellular localizationNucleus.
  • Information by UniProt

Recombinant Human KDM4A / JHDM3A / JMJD2A protein images

  • SDS-PAGE analysis of ab125541.

References for Recombinant Human KDM4A / JHDM3A / JMJD2A protein (ab125541)

ab125541 has not yet been referenced specifically in any publications.

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