• Product nameAnti-macroH2A.1 antibody
    See all macroH2A.1 primary antibodies
  • Description
    Rabbit polyclonal to macroH2A.1
  • Tested applicationsSuitable for: WB, ELISAmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Rabbit, Horse, Chicken, Guinea pig, Cow, Cat, Dog, Pig
  • Immunogen

    Synthetic peptide corresponding to Human macroH2A.1 aa 144-193 (internal sequence).


    Database link: O75367

  • Positive control
    • 293T cell lysate


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage bufferPreservative: None
    Constituents: 2% Sucrose, PBS
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab83782 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 a concentration of 1 µg/ml. Predicted molecular weight: 40 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.
ELISA Use at an assay dependent concentration.

Titre using peptide based assay: 1/312500.


  • FunctionVariant histone H2A which replaces conventional H2A in a subset of nucleosomes where it represses transcription. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. Involved in stable X chromosome inactivation. Inhibits the binding of transcription factors and interferes with the activity of remodeling SWI/SNF complexes. Inhibits histone acetylation by EP300 and recruits class I HDACs, which induces an hypoacetylated state of chromatin. In addition, isoform 1, but not isoform 2, binds ADP-ribose and O-acetyl-ADP-ribose, and may be involved in ADP-ribose-mediated chromatin modulation.
  • Tissue specificityUbiquitous.
  • Sequence similaritiesContains 1 histone H2A domain.
    Contains 1 Macro domain.
  • Post-translational
    Monoubiquitinated at either Lys-116 or Lys-117. May also be polyubiquitinated. Ubiquitination is mediated by the CUL3/SPOP E3 complex and does not promote proteasomal degradation. Instead, it is required for enrichment in inactive X chromosome chromatin.
  • Cellular localizationNucleus. Chromosome. Enriched in inactive X chromosome chromatin and in senescence-associated heterochromatin.
  • Information by UniProt
  • Database links
  • Alternative names
    • Core histone macro h2a.1 antibody
    • Core histone macro-H2A.1 antibody
    • H2A histone family member Y antibody
    • H2A.y antibody
    • H2A/y antibody
    • H2AF12M antibody
    • H2AFJ antibody
    • H2afy antibody
    • H2AY_HUMAN antibody
    • Histone H2A.Y antibody
    • Histone macroH2A1 antibody
    • Histone macroH2A1.1 antibody
    • Histone macroH2A1.2 antibody
    • Macroh2a1 antibody
    • MACROH2A1.1 antibody
    • MacroH2A1.2 antibody
    • Medulloblastoma antigen MU MB 50.205 antibody
    • Medulloblastoma antigen MU-MB-50.205 antibody
    • mH2a antibody
    • mH2A1 antibody
    see all

Anti-macroH2A.1 antibody images

  • Anti-macroH2A.1 antibody (ab83782) at 1 µg/ml (in 5% skim milk / PBS buffer) + 293T cell lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size : 40 kDa
    Observed band size : 39 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 25 kDa. We are unsure as to the identity of these extra bands.

References for Anti-macroH2A.1 antibody (ab83782)

ab83782 has not yet been referenced specifically in any publications.

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