Anti-Histone H3 (asymmetric di methyl R17)抗体
参阅全部 Histone H3 一抗
兔多克隆抗体to Histone H3 (asymmetric di methyl R17)
Rabbit
Peptide competition experiments confirmed that the antibody recognises specifically methylated R17 in H3 and not unmethylated H3 or methylated R3 in H4 (see figure 1). In whole cell extract the antibody recognises specifically only the methylated histone H3 protein band (see figure 2) Further, the antibody doesn't crossreact with the C-terminal methylation sites of CARM1 in histone H3. In IHC on paraffin-embedded sections of human tonsil, the antibody shows nuclear staining across most nuclei. Slight batch to batch variation is observed, but no more than 50% cross reactivity with symmetric di methyl R17 peptide is allowed.
适用于: PepArr, IHC-P, ICC/IF, Dot blot, WBmore details
与反应: Human
预测可用于: Mouse, Rat, Chicken, Cow, Caenorhabditis elegans, Drosophila melanogaster, Mammals, Toxoplasma gondii
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
The nuclear hormone receptor co-activator CARM1 has the potential to methylate histone H3 at arginine residues in vitro. The methyltransferase activity of CARM1 is necessary for its co-activator functions in transient transfection assays. However, the role of this methyltransferase in vivo is unclear, given that methylation of arginines is not easily detectable on purified histones. This antibody recognizes methylated arginine 17 (R17) of histone H3, the major site of methylation by CARM1. Bauer et al (2001) have shown by using this antibody that methylated R17 exists in vivo. Chromatin immunoprecipitation analysis shows that R17 methylation on histone H3 is dramatically upregulated when the estrogen receptor-regulated pS2 gene is stimulated by estradiol and TPA. Coincident with the appearance of methylated R17, the CARM1 methyltransferase is found associated with the histones on the pS2 gene. Together these results demonstrate that the CARM1 methyltransferase is recruited to an active promoter and that CARM1-mediated methylation of histone H3 at R17 takes place in vivo during this active state.
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Liquid
Shipped 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.
pH: 7.40
Preservative: 0.02% Sodium azide
Constituents: 1% BSA, 98.98% 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.
浓度
50 µg 浓度为 1 mg/ml
Immunogen affinity purified
The nuclear hormone receptor co-activator CARM1 has the potential to methylate histone H3 at arginine residues in vitro. The methyltransferase activity of CARM1 is necessary for its co-activator functions in transient transfection assays. However, the role of this methyltransferase in vivo is unclear, given that methylation of arginines is not easily detectable on purified histones. This antibody recognizes methylated arginine 17 (R17) of histone H3, the major site of methylation by CARM1. Bauer et al (2001) have shown by using this antibody that methylated R17 exists in vivo. Chromatin immunoprecipitation analysis shows that R17 methylation on histone H3 is dramatically upregulated when the estrogen receptor-regulated pS2 gene is stimulated by estradiol and TPA. Coincident with the appearance of methylated R17, the CARM1 methyltransferase is found associated with the histones on the pS2 gene. Together these results demonstrate that the CARM1 methyltransferase is recruited to an active promoter and that CARM1-mediated methylation of histone H3 at R17 takes place in vivo during this active state.
多克隆
IgG
Abpromise™承诺保证使用ab8284于以下的经测试应用
“应用说明”部分 下显示的仅为推荐的起始稀释度；实际最佳的稀释度/浓度应由使用者检定。
| 应用 | Ab评论 | 说明 |
|---|---|---|
| PepArr | Use a concentration of 0.002 - 0.0002 µg/ml. | |
| IHC-P | (2) | Use at an assay dependent concentration. |
| ICC/IF | (3) | Use a concentration of 0.1 µg/ml. |
| Dot blot | Use at an assay dependent concentration. | |
| WB | (9) | 1/1000 - 1/2000. |
Entrez Gene: 8350 Human
Entrez Gene: 8351 Human
Entrez Gene: 8352 Human
Entrez Gene: 8353 Human
Entrez Gene: 8354 Human
Entrez Gene: 8355 Human
Entrez Gene: 8356 Human
Entrez Gene: 8357 Human
Entrez Gene: 8358 Human
Entrez Gene: 8968 Human
Entrez Gene: 319152 Mouse
Entrez Gene: 319153 Mouse
Entrez Gene: 360198 Mouse
Entrez Gene: 97908 Mouse
Omim: 602810 Human
SwissProt: P84229 Chicken
SwissProt: P68431 Human
SwissProt: P68433 Mouse
Unigene: 132854 Human
Unigene: 247813 Human
Unigene: 247814 Human
Unigene: 248176 Human
Unigene: 443021 Human
Unigene: 484990 Human
Unigene: 532144 Human
Unigene: 533292 Human
Unigene: 546315 Human
Unigene: 586261 Human
Unigene: 591778 Human
Unigene: 221301 Mouse
Unigene: 261657 Mouse
Unigene: 377874 Mouse
Unigene: 390558 Mouse
Unigene: 397328 Mouse
Unigene: 138090 Rat
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Western blot - Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284)
Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284) at 1 µg/ml + HeLa Histone Preparation Nuclear Lysate at 2.5 µg/ml
Secondary
Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 15.4 kDa
Observed band size: 17 kDawhy is the actual band size different from the predicted?
Additional bands at: 55 kDa, 60 kDa, 90 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 2 minutes
Peptide Array - Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284)
All batches of ab8284 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 - asymmetric di methyl R17 peptide (ab16935), indicating that this antibody specifically recognises the Histone H3 - asymmetric di methyl R17 modification.
ab16935 - Histone H3 - asymmetric di methyl R17
ab32948 - Histone H3 - symmetric di methyl R17
ab14663 - Histone H3 - unmodified
Immunocytochemistry/ Immunofluorescence - Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284)
ICC/IF image of ab8284 stained MCF7 cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab8284, 0.1µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.
Western blot - Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284)Taken from Bauer et al, (2001).
Total U2OS cell extract was western blotted using the anti-Me-R17H3 antibody. The asterisk indicates methylated histone H3. The left panel shows presence of core histones (indicated on the left) by Coomassie Blue staining. Molecular weights are indicated on the right.
Dot Blot - Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284)
A dot blot was performed using unmodified peptide (lane 1), Histone H3 mono methyl R17 peptide (lane 2), Histone H3 asymmetric di methyl R17 peptide (lane 3) and Histone H3 symmetric di methyl R17 peptide (lane 4). The dot blot indicates that ab8284 is specific to Histone H3 asymmetric di methyl R17.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Histone H3 (asymmetric di methyl R17) antibody (ab8284)
ab8284 was used in immunohistochemistry with paraffin embedded sections of human tonsil, using DAB as a chromogen (brown). Counterstaining of nuclei was performed with haemotoxylin (blue).
Staining is seen confined to the nucleus.
