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Invitrogen
Human Histone H2A.X (aa 118-143) Control Fragment Recombinant Protein
Product Details
RP-104931
Applications
Tested Dilution
Publications
Product Specifications
Species
Human
Expression System
E. coli
Amino acid sequence
PKKTSATVGPKAPSGGKKATQASQEY
Tag
His-ABP-tag
Class
Recombinant
Type
Protein
Purity
>80% by SDS-PAGE and Coomassie blue staining
Conjugate
Form
Liquid
Concentration
≥5.0 mg/mL
Purification
purified
Storage buffer
1M urea/PBS, pH 7.4
Contains
no preservative
Storage conditions
-20° C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
Highest antigen sequence indentity to the following orthologs: Mouse (85%), Rat (85%).
This recombinant protein control fragment may be used for blocking experiments. In IHC/ICC and WB experiments, we recommend a 100x molar excess of the protein fragment control based on the concentration and the molecular weight. Pre-incubate the antibody-protein control fragment mixture for 30 min at room temperature.
Target Information
Histone H2A.X (H2AX) is a member of the histone H2A family which is one of the four core histones making up the nucleosome core particle. In eukaryotes, DNA double strand breaks (DSBs) have been shown to trigger the phosphorylation of serine 139 at the carboxy terminus of histone H2AX resulting in gamma-H2AX. The phosphorylation of H2AX can be detected by Western blotting or immunofluorescence, revealing the frequency of DSBs. The phosphatidylinositol 3-kinases have been implicated in H2AX phosphorylation, but it is unclear if ATM is the primary H2AX kinase or if other members of the family such as DNA-PK and ATR contribute in a similar manner. Structurally, H2A.x contains 143 amino acid residues. Histone 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 Histone 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. Histone H2A.X 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.
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Bioinformatics
Protein Aliases: gamma H2AX; H2A histone family, member X; H2a/x; H2AX histone; Histone H2A.X; Histone H2a/x; Histone H2AX
Gene Aliases: H2A.X; H2A/X; H2AFX; H2AX
UniProt ID: (Human) P16104
Entrez Gene ID: (Human) 3014
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