Anti-Histone H2A (acetyl K5) antibody (ab58548)

Overview

  • Product nameAnti-Histone H2A (acetyl K5) antibody
    See all Histone H2A primary antibodies
  • Description
    Rabbit polyclonal to Histone H2A (acetyl K5)
  • SpecificityDetects endogenous levels of Histone H2A only when acetylated at lysine 5
  • Tested applicationsSuitable for: ICC/IF, IHC-P, ELISAmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthetic acetylated peptide (Human) around the acetylation site of lysine 5 (GGKAAG)

  • Positive control
    • Human breast carcinoma tissue IHC-P: Human normal colon FFPE tissue sections.

Properties

  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
  • Storage bufferPreservative: 0.02% Sodium Azide
    Constituents: 50% Glycerol, PBS (without Mg2+ and Ca2+), 150mM Sodium chloride, pH 7.4
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • Purification notesAffinity purified from rabbit antiserum by affinity chromatography using epitope specific phosphopeptide. The antibody against non acetylated peptide was removed by chromatography using non acetylated peptide corresponding to the acetylation site.
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab58548 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
ICC/IF Use at an assay dependent concentration.
IHC-P Use a concentration of 1 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
ELISA 1/5000.

Target

  • 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
    modifications
    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
    • H2A antibody
    • H2A1B_HUMAN antibody
    • H2AFM antibody
    • HIST1H2A antibody
    • HIST1H2AE 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 (acetyl K5) antibody images

  • IHC image of ab58548 staining Histone H2A (acetyl K5) in human colon formalin fixed paraffin embedded tissue sections, performed on a Leica Bond. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab58548, 1µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX. No primary antibody was used in the negative control (shown on the inset).

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

  • Paraffin embedded human breast carcinoma tissue labelled with ab58548 at 1/50 dilution. Samples were treated -/+ acetylated peptide.Paraffin embedded human breast carcinoma tissue labelled with ab58548 at 1/50 dilution. Samples were treated -/+ acetylated peptide.
  • ICC/IF image of ab58548 stained HeLa cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab58548, 1µg/ml) overnight at +4°C. 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) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

References for Anti-Histone H2A (acetyl K5) antibody (ab58548)

ab58548 has not yet been referenced specifically in any publications.

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