| 货号 | 39158 |
| 同种亚型 | Serum |
| 反应种属 | Human, Mouse, Other (Wide Range) |
| 来源宿主 | Rabbit |
| 应用 | ChIP/Western Blot/Immunofluorescence/Dot Blot/Immunocytochemistry |
| 使用方法 | Validated Applications: ChIP: 10 µl per ChIP ICC/IF: 1:1,000 - 1:2,500 dilution WB: 1:1,000 - 1:5,000 dilution Published Applications: see references |
| 供应商 | Active Motif | |
| 纯化方式 | None | |
| 免疫原 | This Histone H3 trimethyl Lys27 antibody was raised against a peptide including trimethyl-lysine 27 of histone H3. | |
| 背景 | 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. | |
| 运输条件 | Blue Ice | |
| 存放说明 | 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. | |
| 存储溶液 | Rabbit serum containing 30% glycerol and 0.035% sodium azide. Sodium azide is highly toxic. For your convenience, an 计算分子量 | 17 kDa |
| 参考文献 |
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Histone H3K27me3 antibody (pAb) tested by ChIP. Chromatin immunoprecipitation (ChIP) was performed using the ChIP-IT® High Sensitivity Kit (Cat. No. 53040) with 15 µg of chromatin from HeLa cells and 5 µl H3K27me3 antibody. ChIP DNA was used in qPCR with the control primer pairs or gene-specific primer pairs as indicated. Data are presented as Binding Events Detected per 1000 Cells using Active Motifs Epigenetic Services normalization scheme which accounts for primer efficiency and the amount of chromatin used in the ChIP reaction. | |
Histone H3K27me3 antibody (pAb) tested by immunofluorescence. Staining of HeLa cells with Histone H3 trimethyl Lys27 antibody (1:1,000, top panel) and DAPI (middle panel), and a merge of both images (bottom panel). | |
Histone H3K27me3 antibody (pAb) tested by Western blot. HeLa acid extract (10 µg) was probed with Histone H3 trimethyl Lys27 antibody (1:5,000 dilution). | |
Histone H3K27me3 antibody (pAb) 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. |
