Histone H2A.XS139ph antibody (pAb)
|Catalog No: 39117||Format: 100 µg||$480||Buy|
|Catalog No: 39118||Format: 10 µg||$120||Buy|
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Applications Validated by Active Motif:
ICC/IF: 1:500 dilution
WB*: 1:1,000 - 1:5,000 dilution
*Note: many chromatin-bound proteins are not soluble in a low salt nuclear extract and fractionate to the pellet. Therefore, we recommend a High Salt / Sonication Protocol when preparing nuclear extracts for Western Blot.
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 H2AX phospho Ser139 antibody was raised against a peptide including phospho-serine 139 of histone H2AX.
10 mM sodium phosphate pH 7.5, 150 mM NaCl, 30% glycerol, 0.035% sodium azide.
View our Guide to Histone Modifications and Biological Function.
Histone H2AX phospho Ser139 (H2AX, H2A histone family member X) replaces conventional H2A in a subset of nucleosomes. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries that require DNA as a template. Histones thereby play a central role in transcriptional regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called the histone code, and nucleosome remodeling. Histone H2AX is required for checkpoint-mediated arrest of cell cycle progression in response to low doses of ionizing radiation, and for efficient repair of DNA double-strand breaks (DSBs), specifically when modified by C-terminal phosphorylation.
Active Motif's HeLa nuclear extract (Catalog No. 36010) can be used as a positive control for Histone H2AX phospho Ser139 antibody.
Chromatin IP Assays
This antibody has been validated for use in ChIP and/or ChIP-Seq, and can be used with Active Motif's ChIP-IT® High Sensitivity Kit or our magnetic bead-based ChIP-IT® Express Kits. For an overview of all of our ChIP products, please visit our Chromatin IP Page to learn about ChIP products designed for use with Histone H2A.XS139ph antibody (pAb).
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.
- 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