|Tested species reactivity||Human, Non-human primate|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Synthetic peptide (127 PKAPSGGKKATQASQEY 143) of Histone H2A.x protein.|
|Storage buffer||PBS with 0.05% BSA|
|Contains||0.05% sodium azide|
|Storage Conditions||Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.|
|Tested Applications||Dilution *|
|Immunohistochemistry (Paraffin) (IHC (P))||10 µg/ml|
|Western Blot (WB)||2-4 µg/ml|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
H2A.x is a human histone H2A isoprotein containing 143 amino acid residues. H2A.x is considered a basal histone, being synthesized in G1 as well as in S-phase, and its mRNA contains polyA addition motifs and a polyA tail along with the conserved stem-loop and U7 binding sequences involved in the processing and stability of replication type histone mRNAs. There are two forms of H2A.x mRNA, one about 1600 bases long and contains polyA; the other about 575 bases long, lacking polyA. The short form behaves as a replication type histone mRNA, while the longer behaves as a basal type histone mRNA. H2A.x becomes extensively phosphorylated within 1-3 minutes of DNA damage and forms foci at break sites. It 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. It maps to the 11q23.2-q23.3 region of the human chromosome. Histone H2A.x contributes to histone-formation and therefore the structure of DNA. Histone H2A variant H2A.x specifically regulates the interaction of MDC1 (mediator of DNA damage checkpoint protein 1), a DNA repair protein to the sites of DNA damage.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.