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Histone H3 trimethyl Lys27 antibody (pAb)
| Catalog No: 39156 | Format: 200 µl | $340 | Buy Now |
| Catalog No: 39158 | Format: 10 µl | $70 | Buy Now |
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Applications Table
| Western Blot | Chromatin IP |
|---|---|
| 1:1,000 - 1:5,000 | 5 - 10 µl per ChIP |
for Histone H3 trimethyl Lys27 antibody (pAb)Background
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). Histone H1 is a linker histone, present at the interface between the nucleosome core and DNA entry/exit points. Histone H1 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; these modifications play a major role in regulating gene expression.
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 H3K27me3) by different histone methyltransferases such as EZH2 or NSD3. Methylation of this residue is mainly associated with transcriptional repression.
for Histone H3 trimethyl Lys27 antibody (pAb)Immunogen
This Histone H3 trimethyl Lys27 antibody was raised against a peptide including trimethyl-lysine 27 of histone H3.
for Histone H3 trimethyl Lys27 antibody (pAb)Application Notes
This Histone H3 trimethyl Lys27 antibody (H3K27me3) has been validated for use in Western blotting (1:1,000 - 1:5,000 dilution) and chromatin IP (5 - 10 μl per ChIP). Specificity for trimethyl lysine 27 was confirmed by dot blot with non-modified histone H3 peptide or peptides mono-, di- or trimethylated at lysine 4; peptides mono-, di- or trimethylated at lysine 9; peptides mono-, di- or trimethylated at lysine 27. Also, Western blot against 200 ng of recombinant histone H3 was negative. This product is specific for histone H3 trimethylated at lysine 27. Because this modification is conserved from yeast to human, a wide range of reactivity is expected.
for Histone H3 trimethyl Lys27 antibody (pAb)Buffer
Rabbit serum containing 30% glycerol and 0.035% sodium azide.
for Histone H3 trimethyl Lys27 antibody (pAb)Positive Control
Active Motif's HeLa acid extract (Catalog No. 36200) can be used as a positive control for Histone H3 trimethyl Lys27 antibody.
Chromatin IP Assays
Active Motif has a variety of Chromatin Immunoprecipitation Kits for every need.
Please visit our Chromatin IP Page to learn about ChIP products designed for use with Histone H3 trimethyl Lys27 antibody (pAb).
Histone H3 trimethyl Lys27 antibody tested by Western blot.
HeLa acid extract (10 µg) was probed with Histone H3 trimethyl Lys27 antibody (1:5,000 dilution).
Histone H3 trimethyl Lys27 antibody tested by ChIP.
Chromatin IP performed using the ChIP-IT® Express Kit (Catalog No. 53008) and 50 µl of Ready-to-ChIP HeLa Chromatin (Catalog No. 53015) per ChIP. Subsequent to the ChIP reaction, DNA was purified from the immunoprecipitated chromatin and a region approximately 1000 base pairs 5′ of the transcriptional start site of the HoxD13 gene was amplified by PCR.
Lane 1: ChIP using negative control rabbit IgG.
Lane 2: ChIP using 10 µl of Histone H3 trimethyl Lys27 antibody.
Lane 3: PCR input control.
Histone H3 trimethyl Lys27 antibody tested by dot blot analysis.
Dot blot analysis was used to confirm the specificity of Histone H3 trimethyl Lys27 antibody for trimethyl-lysine 27 of histone H3. Peptides corresponding to regions around major sites of histone H3 methylation (lysine 4, lysine 9, lysine 27) were spotted onto PVDF and probed with the antibody at a dilution of 1:5,000. The amount of peptide (in picomoles) spotted is indicated next to each row.
Lane 1: Unmodified Lys4 peptide.
Lane 2: Monomethyl Lys4 peptide.
Lane 3: Dimethyl Lys4 peptide.
Lane 4: Trimethyl Lys4 peptide.
Lane 5: Monomethyl Lys9 peptide.
Lane 6: Unmodified Lys9 peptide.
Lane 7: Dimethyl Lys9 peptide.
Lane 8: Trimethyl Lys9 peptide.
Lane 9: Unmodified Lys27 peptide.
Lane 10: Monomethyl Lys27 peptide.
Lane 11: Dimethyl Lys27 peptide.
Lane 12: Trimethyl Lys27 peptide.
for Histone H3 trimethyl Lys27 antibody (pAb)Storage
Antibodies in solution can be stored at -20°C for 2 years. Avoid repeated freeze/thaw cycles and keep on ice when not in storage.
for Histone H3 trimethyl Lys27 antibody (pAb)Guarantee
This product is guaranteed for 6 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;
- DB = Dot Blot;
- ELISA = Enzyme-linked Immunosorbent Assay;
- EMSA = Electrophoretic Mobility Shift Assay
- FACS = Flow Cytometry;
- ICC = Immunocytochemistry;
- IF = Immunofluorescence;
- IHC = Immunohistochemistry;
- IP = Immunoprecipitation;
- MeDIP = Methyl-DNA Immunoprecipitation;
- WB = Western Blotting
