Anti-Histone H3 (citrulline R2 + R8 + R17) antibody - ChIP Grade (ab5103)


  • Product nameAnti-Histone H3 (citrulline R2 + R8 + R17) antibody - ChIP Grade
    See all Histone H3 primary antibodies
  • Description
    Rabbit polyclonal to Histone H3 (citrulline R2 + R8 + R17) - ChIP Grade
  • Specificityab5103 detects a 17 kDa band in single lane Western Blot. Peptide inhibition in Western Blot hasn't been processed. Modification specificity is determined by Peptide Array. ab5103 binds strongly to Histone H3 citrulline 2 + 8 + 17 peptide.
  • Tested applicationsICC/IF, PepArr, IHC-Fr, ChIP/Chip, WB, ChIP, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Rabbit, Cow, Human, Monkey
    Predicted to work with: a wide range of other species
  • Immunogen

    Synthetic peptide corresponding to Human Histone H3 aa 1-100 (citrulline R2 + R8 + R17) conjugated to Keyhole Limpet Haemocyanin (KLH). Also SwissProt: P84243, Q71DI3, Q16695, Q6NXT2.
    Database link: P68431
    (Peptide available as ab32876)

  • Positive control
    • This antibody gave a positive signal in HL60 Whole Cell Lysate - DMSO and Calcium Ionophore treated. In WB ab5103 only recognizes human or bovine histone H3 when PADI4 and calcium are added.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage bufferpH: 7.40
    Preservative: 0.02% Sodium azide
    Constituent: PBS

    Batches of this product that have a concentration < 1mg/ml may have BSA added as a stabilising agent. If you would like information about the formulation of a specific lot, please contact our scientific support team who will be happy to help.
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research Areas


Our Abpromise guarantee covers the use of ab5103 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. PubMed: 20733033
PepArr Use a concentration of 0.2 - 0.02 µg/ml.
IHC-Fr Use at an assay dependent concentration.
ChIP/Chip Use at an assay dependent concentration.
WB Use a concentration of 1 µg/ml. Detects a band of approximately 17 kDa (predicted molecular weight: 15 kDa).Can be blocked with Human Histone H3 (citrulline R2 + R8 + R17) peptide (ab32876). Abcam recommends using 3-5% milk as the blocking agent
ChIP Use at an assay dependent concentration.
IHC-P 1/100. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.


  • RelevanceCore 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- modifications of histones, also called histone code, and nucleosome remodeling. P68431 and Q71DI3 are expressed during S phase, then expression strongly decreases as cell division slows down during the process of differentiation. Q16695 is expressed in tesicular cells. Q6NXT2 is specifically expressed in the seminiferous tubules of testis and this Hominid-specific H3.5/H3F3C preferentially colocalizes with euchromatin, and it is associated with actively transcribed genes. P84243 is a variant histone H3 which replaces conventional H3 in a wide range of nucleosomes in active genes. Constitutes the predominant form of histone H3 in non-dividing cells and is incorporated into chromatin independently of DNA synthesis. Deposited at sites of nucleosomal displacement throughout transcribed genes, suggesting that it represents an epigenetic imprint of transcriptionally active chromatin. Post-translational modification. Citrullination at Arg-9 (H3R8ci) and/or Arg-18 (H3R17ci) by PADI4 impairs methylation and represses transcription.
  • Cellular localizationNuclear
  • Database links
  • Alternative names
    • Cit Histone H3 antibody
    • Citrullated antibody
    • citrullin antibody
    • Citrullinated Histone H3 antibody
    • citrulline antibody
    • H3 3 like sequence MH921 antibody
    • H3 3A antibody
    • H3 histone antibody
    • H3 histone family member E pseudogene antibody
    • H3F3 antibody
    • HIST3H3 antibody
    • Histone H3 3 pseudogene antibody
    • Histone H3 Citrullated antibody
    • Histone H3.1 antibody
    • Histone H3.1t antibody
    • Histone H3.2 antibody
    • Histone H3.3 antibody
    • Histone H3.3C antibody
    • Histone H3.5 antibody
    see all

Anti-Histone H3 (citrulline R2 + R8 + R17) antibody - ChIP Grade images

  • All batches of ab5103 are tested in Peptide Array against peptides to different Histone H3 modifications. Six dilutions of each peptide are printed on to the Peptide Array in triplicate and results are averaged before being plotted on to a graph. Results show strong binding to Histone H3 - citrulline 2 + 8 + 17 peptide (ab32876), indicating that this antibody specifically recognises the Histone H3 - citrulline 2 + 8 + 17 modifications.

    ab32876 - Histone H3 - citrulline 2 + 8 + 17

    ab17566 - Histone H3 - unmodified

  • All lanes : Anti-Histone H3 (citrulline R2 + R8 + R17) antibody - ChIP Grade (ab5103) at 1 µg/ml

    Lane 1 : HL60 (Human Caucasian promyelocytic leukaemia) DMSO and Calcium Ionophore treated Whole Cell Lysate with with 5% BSA
    Lane 2 : HL60 (Human Caucasian promyelocytic leukaemia) DMSO and Calcium Ionophore treated Whole Cell Lysate with with 5% milk
    Lane 3 : HL60 (Human Caucasian promyelocytic leukaemia) DMSO and Calcium Ionophore treated Whole Cell Lysate with with 3% milk

    Lysates/proteins at 10 µg per lane.

    Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/10000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 15 kDa
    Observed band size : 17 kDa (why is the actual band size different from the predicted?)

    Exposure time : 30 seconds

    Abcam recommends using milk as the blocking agent. Abcam welcomes customer feedback and would appreciate any comments regarding this product and the data presented above .


    Secondary antibody - goat anti-rabbit HRP (ab97051)

  • Chromatin immunoprecipitation using ab5103 on the pS2 promoter. Times are after stimulation by estrogen (Ul).
  • ICC/IF image of ab5103 stained human HeLa cells. The cells were PFA fixed (10 min), permabilised in TBS-T (20 min) and incubated with the antibody (ab5103, 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).

  • ab5103 staining Histone H3 (citrulline 2 + 8 + 17) in Mouse bone marrow cells by Immunocytochemistry/ Immunofluorescence. Cells were fixed in formaldehyde and permeabilized in 0.1% Triton X-100 prior to blocking in 5% Goat serum for 2 hours at 25°C. The primary antibody was diluted 1/250 in PBS and incubated with the sample for 12 hours at 4°C. The secondary antibody was Alexa Fluor® 488-conjugated Goat anti-Rabbit polyclonal, diluted 1/500.
    Nuclei were counterstained blue with DAPI.

    See Abreview

  • Predicted band size : 15 kDa

    Cuthbert, G.L. et al, (2004) Cell 118, 545-553

    Rabbit polyclonal to Histone H3 (citrulline 2 + 8 + 17) used at 1/2000 dilution, after blocking with TBST 5% BSA. Purified histones run out with approximately 250 ng of each histone.

    Lanes 1-3 contain Histone H3 (250 ng per lane)
    Lane 1: PADI4 + Calcium
    Lane 2: H3 + PADI4
    Lane 3: H3 + PADI4 + Calcium

    Lanes 4-5 contain bulk histones (250 ng per lane)
    Lane 4: PADI4
    Lane 5: PADI4 + Calcium

    Lane 6: MCF7 cell extract
    Lane 7: MCF7 cell extract (HA-PADI4)

    Secondary antibody : anti-rabbit HRP from Sigma.
    In WB ab5103 only recognizes human or bovine histone H3 when PADI4 and calcium are added.

References for Anti-Histone H3 (citrulline R2 + R8 + R17) antibody - ChIP Grade (ab5103)

This product has been referenced in:
  • Zenaro E  et al. Neutrophils promote Alzheimer's disease-like pathology and cognitive decline via LFA-1 integrin. Nat Med N/A:N/A (2015). Read more (PubMed: 26214837) »
  • Deplus R  et al. Citrullination of DNMT3A by PADI4 regulates its stability and controls DNA methylation. Nucleic Acids Res N/A:N/A (2014). WB . Read more (PubMed: 24957603) »

See all 24 Publications for this product

Product Wall

Application Western blot
Loading amount 15 µg
Gel Running Conditions Reduced Denaturing
Sample Mouse Cell lysate - whole cell (hepatocytes)
Specification hepatocytes
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 23°C

Abcam user community

Verified customer

Submitted Dec 26 2014

The image shown using PADI4 and Calcium on our datasheet is copied from 2004 Cell paper by Kouzarides’ lab.

This experiment was not actually performed in the abcam labs and therefore I’m afraid that I can’t add much clarific...

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Thank you for contacting us. Here are somet ips regarding your ChIP experiment.

HeLa Cells:
For 3.5 x 10e6 HeLa cells per plate, we pool 2 plates per falcon tube (in about 16ml PBS). We then centrifuge the cells @ 4°C for 5mins...

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I have been able to confirm that you did in fact receive a vial of ab5103. It appears a technical issue during printing of the label led to the 'citH3' being left off the end of the target name.

Thank you for your email, and it's good to hear from you.

I've requested an update on the status of ab5103. Our UK office is closed for the day, but I expect to receive more information by tomorrow. I'll forward everything I find out as soon ...

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Thanks so much for your email.

I'm sorry to hear that the new lot is also not working well. We are looking into the issues with this antibody, but this can take some time to resolve.

I'm sending a free of charge replacement vial on ...

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Thank you very much for your reply.

I've received the single channel images from the lab, and these are attached. These show only the Ab5103 channel for the lots.

The staining looks more nuclear to me, but I'm interested to hear what...

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Thanks again for your patience while I've been in touch with the lab regarding these lots.

I've attached the ICC images that we have for the lots that you requested. The staining in both images is more nuclear than the previous image I sent t...

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Thank you for contacting us. Our UK office does have a different lot available. This new lot and the lot which you have are the only two available presently. Unfortunately we have no further sera to purify from the animal that worked well you befor...

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Thank you for confirming these details and for your cooperation. The details provided enable us to closely monitor the quality of our products.

I am sorry this product did not perform as stated on the datasheet and for the inconvenience this...

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