This fast track antibody is not yet fully characterized. It is subject to these terms and conditions

Anti-Histone H2A (symmetric di methyl R77) antibody (ab19923)


  • Product nameAnti-Histone H2A (symmetric di methyl R77) antibody
    See all Histone H2A primary antibodies
  • Description
    Rabbit polyclonal to Histone H2A (symmetric di methyl R77)

    This product is a fast track antibody. It has been affinity purified and shows high titre values against the immunizing peptide by ELISA. Read the terms of use »

  • Species reactivity

    Predicted to work with: Mouse, Rat, Chicken, Cow, Human, Saccharomyces cerevisiae, Drosophila melanogaster, Schizosaccharomyces pombe, Zebrafish
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 50 to the C-terminus of Human Histone H2A.

    (Peptide available as ab14952.)



  • FunctionCore component of nucleosome. 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.
  • Sequence similaritiesBelongs to the histone H2A family.
  • Post-translational
    The chromatin-associated form is phosphorylated on Thr-121 during mitosis.
    Deiminated on Arg-4 in granulocytes upon calcium entry.
    Monoubiquitination of Lys-120 by RING1 and RNF2/RING2 complex gives a specific tag for epigenetic transcriptional repression and participates in X chromosome inactivation of female mammals. It is involved in the initiation of both imprinted and random X inactivation. Ubiquitinated H2A is enriched in inactive X chromosome chromatin. Ubiquitination of H2A functions downstream of methylation of 'Lys-27' of histone H3. Monoubiquitination of Lys-120 by RNF2/RING2 can also be induced by ultraviolet and may be involved in DNA repair. Following DNA double-strand breaks (DSBs), it is ubiquitinated through 'Lys-63' linkage of ubiquitin moieties by the E2 ligase UBE2N and the E3 ligases RNF8 and RNF168, leading to the recruitment of repair proteins to sites of DNA damage. Monoubiquitination and ionizing radiation-induced 'Lys-63'-linked ubiquitination are distinct events.
    Phosphorylation on Ser-2 is enhanced during mitosis. Phosphorylation on Ser-2 by RPS6KA5/MSK1 directly represses transcription. Acetylation of H3 inhibits Ser-2 phosphorylation by RPS6KA5/MSK1.
    Symmetric dimethylation on Arg-4 by the PRDM1/PRMT5 complex may play a crucial role in the germ-cell lineage.
  • Cellular localizationNucleus. Chromosome.
  • Information by UniProt
  • Database links
  • Alternative names
    • FO108 antibody
    • H2A antibody
    • H2A1B_HUMAN antibody
    • H4 histone family 2 antibody
    • H4 histone family member N antibody
    • H4F2 antibody
    • H4FN antibody
    • HIST1H2AE antibody
    • HistH2A antibody
    • Histone H2A type 1-B/E antibody
    • Histone H2A.2 antibody
    • Histone H2A/a antibody
    • Histone H2A/m antibody
    see all

Anti-Histone H2A (symmetric di methyl R77) antibody images

This Fast-Track antibody is not yet fully characterised. These images represent inconclusive preliminary data.

  • This antibody gave a positive result in ELISA against the immunizing peptide ab14952 (blue line) and a negative result against the non-modified peptide ab14953 (pink line).

  • ICC/IF image of ab19923 stained human HeLa cells. The cells were PFA fixed (10 min), permabilised in TBS-T (20 min) and incubated with the antibody (ab19923, 5µg/ml) for 1h at room temperature. 1%BSA / 10% normal serum / 0.3M glycine was used to quench autofluorescence and block non-specific protein-protein interactions. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red). DAPI was used to stain the cell nuclei (blue).

References for Anti-Histone H2A (symmetric di methyl R77) antibody (ab19923)

ab19923 has not yet been referenced specifically in any publications.

Product Wall

Abcam has not validated the combination of species/application used in this Abreview.
Application Western blot
Sample Cow Purified protein (calf thymus histones H2B, H2A, H3, H4)
Loading amount 1 µg
Specification calf thymus histones H2B, H2A, H3, H4
Gel Running Conditions Reduced Denaturing
Blocking step BSA as blocking agent for 2 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

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Submitted Jan 16 2008