• Product name

    Anti-Histone H1x antibody - ChIP Grade
    See all Histone H1x primary antibodies
  • Description

    Rabbit polyclonal to Histone H1x - ChIP Grade
  • Host species

  • Specificity

    Using western blot analysis ab31972 recognises histone H1x in HeLa nuclear extract.
  • Tested applications

    Suitable for: ChIP, ICC/IF, IHC-P, WBmore details
  • Species reactivity

    Reacts with: Mouse, Human
  • Immunogen

    Synthetic peptide corresponding to Human Histone H1x aa 200 to the C-terminus conjugated to keyhole limpet haemocyanin.
    Database link: Q92522
    (Peptide available as ab18052)

  • Positive control

    • HeLa nuclear extract This antibody gave a positive result in IHC in the following FFPE tissue: Human breast adenocarcinoma.



Our Abpromise guarantee covers the use of ab31972 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
ChIP Use 2 µg for 25 µg of chromatin.
ICC/IF Use a concentration of 1 µg/ml.
IHC-P Use a concentration of 1 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
WB Use a concentration of 1 µg/ml. Detects a band of approximately 35 kDa (predicted molecular weight: 35 kDa).


  • Function

    Histones H1 are necessary for the condensation of nucleosome chains into higher-order structures.
  • Tissue specificity

    Expressed ubiquitously.
  • Sequence similarities

    Belongs to the histone H1/H5 family.
    Contains 1 H15 (linker histone H1/H5 globular) domain.
  • Cellular localization

    Nucleus. Chromosome.
  • Information by UniProt
  • Database links

  • Alternative names

    • H1 histone family member X antibody
    • H1FX antibody
    • H1X antibody
    • H1X_HUMAN antibody
    • Histone H1x antibody
    • MGC15959 antibody
    • MGC8350 antibody
    see all


  • All lanes : Anti-Histone H1x antibody - ChIP Grade (ab31972) at 1 µg/ml

    Lane 1 : HeLa nuclear lysate
    Lane 2 : HeLa nuclear lysate with Human Histone H1x peptide (ab18052) at 1 µg/ml

    Lysates/proteins at 20 µg per lane.

    Predicted band size: 35 kDa
    Observed band size: 35 kDa
    Additional bands at: 98 kDa (possible non-specific secondary antibody binding)

    ab31972 recognises histone H1.X in HeLa nuclear extract at 35 kDa (lane 1), which is blocked using the immunizing peptide ab18052.
  • IHC image of Histone H1x staining in Human breast adenocarcinoma formalin fixed paraffin embedded tissue section*, performed on a Leica Bond™ system using the standard protocol F. 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 ab31972, 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.

    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.

    *Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

  • Chromatin was prepared from HeLa cells according to the Abcam X-ChIP protocol. Cells were fixed with formaldehyde for 10 minutes. The ChIP was performed with 25µg of chromatin, 2µg of ab31972 (blue), and 20µl of Protein A/G sepharose beads. No antibody was added to the beads control (yellow). The immunoprecipitated DNA was quantified by real time PCR (Taqman approach for active and inactive loci, Sybr green approach for heterochromatic loci). Primers and probes are located in the first kb of the transcribed region.

  • ICC/IF image of ab31972 stained human HeLa cells. The cells were PFA fixed (10 min), permabilised in TBS-T (20 min) and incubated with the antibody (ab31972, 1µg/ml) for 1h at room temperature. 1%BSA / 10% normal goat 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).


This product has been referenced in:

  • Philippe TJ  et al. Loss of MeCP2 in adult 5-HT neurons induces 5-HT1A autoreceptors, with opposite sex-dependent anxiety and depression phenotypes. Sci Rep 8:5788 (2018). ChIP ; Mouse . Read more (PubMed: 29636529) »
  • Ito-Ishida A  et al. Genome-wide distribution of linker histone H1.0 is independent of MeCP2. Nat Neurosci 21:794-798 (2018). Read more (PubMed: 29802390) »
See all 9 Publications for this product

Customer reviews and Q&As

1-4 of 4 Abreviews or Q&A

Western blot
Human Cell lysate - whole cell (u2os)
Gel Running Conditions
Reduced Denaturing (4-20%)
Loading amount
20 µg

Abcam user community

Verified customer

Submitted Sep 29 2016

Detection step
Semiquantitative PCR
Mouse Cell lysate - whole cell (Mouse embryonic fibroblast)
Mouse embryonic fibroblast
Negative control
Preimmune IgG
Cross-linking (X-ChIP)
Duration of cross-linking step: 5 minute(s) and 0 second(s)
Specification of the cross-linking agent: Formaldehyde
Positive control
Used our homemade Deaf1 antibody and millipore's MeCP2 antibody for pull down.

Abcam user community

Verified customer

Submitted Feb 10 2015

Western blot
Human Cell lysate - whole cell (MRC5VA - Lung fibroblasts)
Loading amount
15 µg
MRC5VA - Lung fibroblasts
Gel Running Conditions
Reduced Denaturing (15% gel)
Blocking step
Milk as blocking agent for 24 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 4°C

Mr. Darren Arbon

Verified customer

Submitted Feb 16 2009


Thank you for your enquiry. I am sorry but to date we do not have information as to the reactivity of either ab31972 or ab17729 with other isoforms of histone H1. These antibodies are relatively new additions to our chromatin range. I appreciate that this information is necessary to fully determine the reactivity of this antibody against the histone H1 isoforms. I have passed on your comments to my colleague in business development. Thank you for your feedback.

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