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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H, M, R, Ch | WB, ICC, DB, ChIP, ChIP-seq | Rb | Affinity Purified | Polyclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | ABE250-S |
| Description | Anti-dimethyl Histone H3 (Lys4) Antibody, Trial Size |
| Alternate Names |
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| Background Information | Histone H3 is one of the five main histone proteins involved in the structure of chromatin in eukaryotic cells. Featuring a main globular domain and a long N-terminal tail, H3 is involved with the structure of the nucleosomes of the beads on a string structure. The N-terminal tail of histone H3 protrudes from the globular nucleosome core and can undergo several different types of epigenetic modifications that influence cellular processes. These modifications include the covalent attachment of methyl or acetyl groups to lysine and arginine amino acids and the phosphorylation of serine or threonine. Dimethylation of histone H3 at Lys4 correlates with transcriptional activity of many genes. |
| Product Information | |
|---|---|
| Format | Affinity Purified |
| Control |
|
| Presentation | Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-dimethyl Histone H3 (Lys4) Antibody, Trial Size is a Rabbit Polyclonal for detection of Histone H3 dimethylated at lysine 4. Also known as H3K4me2, this Ab has dot blot (DB) proven specificity & has been validated in WB, ICC, ChIP. Small pack size is ideal for screening applications. |
| Key Applications |
|
| Application Notes | Immunocytochemistry Analysis: 1:500 dilution from a representative lot detected Histone H3 in NIH/3T3 and A431 cells. Dot Blot Analysis: 1:1,000 dilution from a representative lot specifically detected Histone H3 in a Lys4 dimethhyl modified histone H3 peptide while not detecting potential cross-reacting peptides corresponding to other modified and non-modified histones. Chromatin Immunoprecipitation Analysis: Sonicated chromatin prepared from HeLa cells (1 X 10E6 cell equivalents per IP) were subjected to chromatin immunoprecipitation using 4 µg of either Normal IgG (Part No. 12-370), or 4 µL of Anti-Dimethyl Histone H3 (Lys4) (Part No. ABE250) and the Magna ChIP™ A/G Kit (Cat. # 17-10085). Successful immunoprecipitation of Dimethyl-Histone H3 (Lys4) associated DNA fragments was verified by qPCR using primers specific for the human GAPDH coding region. Please refer to the EZ-Magna ChIP™ A/G (Cat. # 17-10085) protocol for experimental details. ChIP-Sequencing Chromatin immunoprecipitation was performed using the Magna ChIP™ HiSens kit (cat# 17-10460), 5 µg of a representative lot of anti-dimethyl-Histone H3 (Lys4) antibody(ABE250-S), 20 µL Protein A/G beads ,and 5e6 crosslinked HeLa cell chromatin followed by DNA purification using magnetic beads. Libraries were prepared from Input and ChIP DNA samples using standard protocols with Illumina barcoded adapters, and analyzed on Illumina HiSeq™ instrument. An excess of twelve million reads from FastQ files were mapped using Bowtie (http://bowtie-bio.sourceforge.net/manual.shtml) following TagDust (http://genome.gsc.riken.jp/osc/english/dataresource/) tag removal. Peaks were identified using MACS (http://luelab.dfci.harvard.edu/MACS/), with peaks and reads visualized as a custom track in UCSC Genome Browser (http://genome.ucsc.edu) from BigWig and BED files. |
| Biological Information | |
|---|---|
| Immunogen | KLH-conjugated linear peptide corresponding Histone H3 methylated at Lys4. |
| Epitope | Dimethylated Lys4 |
| Host | Rabbit |
| Specificity | This antibody recognizes Histone H3 dimethylated at Lys4. |
| Species Reactivity |
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| Species Reactivity Note | Demonstrated to react with human, mouse, rat, and chicken. Broad species cross-reactivity expected based on sequence similarity. |
| Antibody Type | Polyclonal Antibody |
| Entrez Gene Number |
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| Entrez Gene Summary | Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene is intronless and encodes a member of the histone H3 family. Transcripts from this gene lack polyA tails; instead, they contain a palindromic termination element. This gene is located separately from the other H3 genes that are in the histone gene cluster on chromosome 6p22-p21.3. [provided by RefSeq]. |
| Gene Symbol |
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| Modifications |
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| Purification Method | Affinity Purfied |
| UniProt Number |
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| UniProt Summary | FUNCTION: Core 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-translational modifications of histones, also called histone code, and nucleosome remodeling. SIZE: 136 amino acids; 15508 Da SUBUNIT: The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. SUBCELLULAR LOCATION: Nucleus. TISSUE SPECIFICITY: Expressed in testicular cells. DEVELOPMENTAL STAGE: Expressed during S phase, then expression strongly decreases as cell division slows down during the process of differentiation. PTM: Acetylation is generally linked to gene activation. Acetylation on Lys-10 impairs methylation at Arg-9. Acetylation on Lys-19 and Lys-24 favors methylation at Arg-18 (By similarity). & Citrullination at Arg-9 and/or Arg-18 by PADI4 impairs methylation and represses transcription (By similarity). & Asymmetric dimethylation at Arg-18 by CARM1 is linked to gene activation. Symmetric dimethylation at Arg-9 by PRMT5 is linked to gene repression (By similarity). & Methylation at Lys-5, Lys-37 and Lys-80 are linked to gene activation. Methylation at Lys-5 facilitates subsequent acetylation of H3 and H4. Methylation at Lys-80 is associated with DNA double-strand break (DSB) responses and is a specific target for TP53BP1. Methylation at Lys-10 and Lys-28 are linked to gene repression. Methylation at Lys-10 is a specific target for HP1 proteins (CBX1, CBX3 and CBX5) and prevents subsequent phosphorylation at Ser-11 and acetylation of H3 and H4. Methylation at Lys-5 and Lys-80 require preliminary monoubiquitination of H2B at Lys-120. Methylation at Lys-10 and Lys-28 are enriched in inactive X chromosome chromatin (By similarity). & Phosphorylated at Thr-4 by GSG2/haspin during prophase and dephosphorylated during anaphase. At centromeres, specifically phosphorylated at Thr-12 from prophase to early anaphase. Phosphorylated at Ser-11 during the whole mitosis. Phosphorylation at Ser-11, which is linked to gene activation, prevents methylation at Lys-10 but facilitates acetylation of H3 and H4. Phosphorylated at Ser-29 by MLTK isoform 1, RPS6KA5 or AURKB during mitosis or upon ultraviolet B irradiation (By similarity). & Phosphorylation at Ser-11 is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. In addition phosphorylation at Ser-11 is important during interphase because it enables the transcription of genes following external stimulation, like stress or growth factors. Phosphorylation at Ser-11 is also an essential regulatory mechanism for neoplastic cell transformation. Phosphorylation at Ser-11 by AURKB/Aurora-B mediates the dissociation of HP1 proteins (CBX1, CBX3 and CBX5) from heterochromatin. & Ubiquitinated (By similarity). SIMILARITY: Belongs to the histone H3 family. |
| Molecular Weight | ~17 kDa observed |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Western Blot using HeLa acid extract and recombinant histone proteins. Western Blot Analysis: 1:1,000 dilution of this antibody detected Histone H3 on 10 µg of HeLa acid extract. |
| Usage Statement |
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| Storage and Shipping Information | |
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| Storage Conditions | Stable for 1 year at 2-8°C from date of receipt. |
| Packaging Information | |
|---|---|
| Material Size | 10 µL |