AbFlex® Histone H3K27me3 antibody (rAb)

RRID: AB_2793791
Catalog No: 91167 Format: 100 µg $365 Buy
Catalog No: 91168 Format: 10 µg $80 Buy

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Antibody Type:
Protein A Chromatography
Molecular Weight:
17 kDa
Human, Wide Range Predicted


Western Blot Validated Dot Blot Validated

Application Notes

Applications Validated by Active Motif:
WB: 0.1 - 1 µg/ml

Note: For optimal results, we recommend a High Salt / Sonication Protocol when preparing nuclear extracts for Western blot.

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 H3 trimethyl Lys27 antibody was raised against a peptide containing trimethyl Lys27 of human Histone H3.


140 mM Hepes, pH 7.5, 70 mM NaCl, 32 mM NaOAc, 0.035% sodium azide, and 30% glycerol.

View our Guide to Histone Modifications and Biological Function.


AbFlex® Histone H3K27me3 antibody (rAb) tested by Western blot.
20 µg of HeLa cell nuclear extract* was run on SDS-PAGE and probed with AbFlex Histone H3K27me3 antibody at 0.5 µg/ml.

AbFlex® Histone H3K27me3 antibody specificity is shown by Dot Blot.
Recombinant proteins were spotted onto PVDF as follows: Lane 1 - Histone H3 (C110A), Cat. No. 31207; Lane 2 - Histone H3K27me1 (MLA), Cat. No. 31621; Lane 3 - Histone H3K27me2 (MLA), Cat. No. 31597; Lane 4 - Histone H3K27me3 (MLA), Cat. No. 31579. Lane 5 - Histone H3K4me1 (MLA), Cat. No. 31619; Lane 6 - Histone H3K4me2 (MLA), Cat. No. 31595; Lane 7- Histone H3K4me3 (MLA), Cat. No. 31600; Lane 8 - Histone H3K9me1 (EPL), Cat. No. 31281; Lane 9 - Histone H3K9me2 (EPL), Cat. No. 31596; Lane 10 - Histone H3K9me3 (EPL), Cat. No. 31601; Top Panel was probed with Histone H3 antibody (mAb) at 2 µg/ml. Bottom Panel was probed with AbFlex Histone H3K27me3 antibody at 2 µg/ml.


AbFlex® antibodies are recombinant antibodies (rAbs) that have been generated using defined DNA sequences to produce highly specific, reproducible antibodies. Each AbFlex antibody contains a 6xHis Tag, a Biotinylation Tag for enzymatic biotin conjugation using the biotin ligase, BirA, and a sortase recognition motif (LPXTG) to attach a variety of labels directly to the antibody including fluorophores, enzymatic substrates (HRP, AP), peptides, drugs as well as solid supports. AbFlex® Histone H3K27me3 antibody was expressed in 293 cells, and contains rabbit immunoglobulin heavy and light chains.

Histone H3 is one of the 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). The methylation of histones can occur on two different residues: arginine or lysine. Histone methylation can be associated with transcriptional activation or repression, depending on the methylated residue. Lysine 27 of histone H3 can be mono-, di- or trimethylated (Histone H3 monomethyl Lys27, Histone H3 dimethyl Lys27 or Histone H3 trimethyl Lys27) by different histone methyltransferases such as EZH2 or NSD3. Methylation of this residue is mainly associated with transcriptional repression.


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