Histone H2A/H4S1ph antibody (pAb)

RRID: AB_2793160
Aliases: Histone H1A/H4 phosphoserine-1
Catalog No: 39115 Format: 200 µl $480 Buy
Catalog No: 39116 Format: 10 µl $120 Buy

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Antibody Type:
Molecular Weight:
14 and 8 kDa
Human, Wide Range Predicted


Western Blot Validated Dot Blot Validated

Published Applications

The following applications have been published using this antibody. Unless noted above, Active Motif may not have validated the antibody for use in these applications:


View publications that use Active Motif products & services here. Enter the product number(s) to see publications & applications that use this antibody.


This Histone H2A/H4 phospho Ser1 antibody was raised against a peptide including phospho-serine 1 of human histone H2A.


Rabbit serum containing 30% glycerol and 0.035% sodium azide. Sodium azide is highly toxic.

View our Guide to Histone Modifications and Biological Function.


Histone H2A/H4 phospho Ser1 pAb tested by Western blot.
HeLa acid extract (5 µg per lane) was probed with Catalog No. 39115 (1:30,000 dilution).
    Lane 1: No treatment.
    Lane 2: Cells treated with colcemid.

Histone H2A/H4 phospho Ser1 pAb tested by dot blot analysis.
Dot blot analysis was used to confirm the specificity of Histone H2A/H4 phospho Ser1 pAb for phospho Ser1 of Histone H2A/H4. Modified and unmodified peptides were spotted onto PVDF and probed with the antibody at a 1:10,000 dilution. The amount of peptide spotted (in picomoles) is indicated next to each row.
    Lane 1: Peptide phosphorylated at Ser1.
    Lane 2: Unmodified Ser1 peptide.


Histones H2A and H4 are core components of the nucleosome. The nucleosome is the smallest subunit of chromatin and consists of 147 base pairs of DNA wrapped around an octamer of core histone proteins (two each of Histone H2A, Histone H2B, Histone H3 and Histone H4). Histone H1 is a linker histone, present at the interface between the nucleosome core and DNA entry/exit points; it is responsible for establishing higher-order chromatin structure. Chromatin is subject to a variety of chemical modifications, including post-translational modifications of the histone proteins and the methylation of cytosine residues in the DNA. Reported histone modifications include acetylation, methylation, phosphorylation, ubiquitylation, glycosylation, ADP-ribosylation, carbonylation and SUMOylation; they play a major role in regulating gene expression.

The first five amino acids of histone H2A and histone H4 are identical in metazoans and include an amino-terminal serine residue. Histone H2A phosphorylation at serine 1 is enriched during mitosis, while H4 phosphorylation increases subsequent to DNA double-strand breaks.

Positive Control

Active Motif's HeLa acid extract (PTX treated) (Catalog No. 36201) can be used as a positive control for Histone H2A/H4 phospho Ser1 antibody.


Some products may be shipped at room temperature. This will not affect their stability or performance. Avoid repeated freeze/thaw cycles by aliquoting items into single-use fractions for storage at -20°C for up to 2 years. Keep all reagents on ice when not in storage.


This product is guaranteed for 12 months from date of receipt.

This product is for research use only and is not for use in diagnostic procedures.

Application Key

  • ChIP = Chromatin Immunoprecipitation;
  • ChIP = ChIP Sequencing;
  • CUT&RUN = Cleavage Under Targets and Release Using Nuclease;
  • CUT&Tag = Cleavage Under Targets and Tagmentation;
  • DB = Dot Blot;
  • ELISA = Enzyme-linked Immunosorbent Assay;
  • EMSA = Electrophoretic Mobility Shift Assay
  • FC = Flow Cytometry;
  • ICC = Immunocytochemistry;
  • IF = Immunofluorescence;
  • IHC = Immunohistochemistry;
  • IP = Immunoprecipitation;
  • MeDIP = Methyl-DNA Immunoprecipitation;
  • NEU = Neutralizing;
  • WB = Western Blotting