Thermo Fisher Scientific Phospho-Histone H2A.X (Ser139) Recombinant Mouse Monoclonal Antibody (CR55T33)

Applications

Tested Dilution

Publications

Western Blot (WB)

1:500

-

Flow Cytometry (Flow)

0.5 µg/test

-

Product Specifications

Species Reactivity

Human, Mouse

Host/Isotype

Mouse / IgG1, kappa

Expression System

Expi293

Class

Recombinant Monoclonal

Type

Antibody

Clone

CR55T33

Conjugate

Unconjugated Unconjugated Unconjugated

View additional formats

• Alexa Fluor Plus 488
• Alexa Fluor Plus 555
• Alexa Fluor Plus 647
• Request custom conjugation

Form

Liquid

Concentration

1.0 mg/mL

Purification

Protein A/G

Storage buffer

PBS, pH 7.4

Contains

0.09% sodium azide

Storage conditions

Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

Shipping conditions

Wet ice

Product Specific Information

Recombinant antibodies are produced using specific genes that code for the desired antibodies. These genes are cloned into an expression vector and expressed in vitro. The advantages of recombinant antibodies include better specificity and lot-to-lot consistency.

Applications Tested: This CR55T33 clone has been tested for flow cytometry at 0.5 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

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.