Histone H2AX Antibody

CAS No.
Chemical Name:
Histone H2AX Antibody
Synonyms
Histone H2AX Antibody
CBNumber:
CB25522266
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file

Histone H2AX Antibody price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biorbyt Ltd orb622437 Histone H2A.X Antibody 50μl $400 2026-05-06 Buy
Biorbyt Ltd orb622437 Histone H2A.X Antibody 100μl $540 2026-05-06 Buy
Biorbyt Ltd orb193588 Histone H2AX Antibody 50μl $260 2026-05-06 Buy
Biorbyt Ltd orb193588 Histone H2AX Antibody 100μl $360 2026-05-06 Buy
Product number Packaging Price Buy
orb622437 50μl $400 Buy
orb622437 100μl $540 Buy
orb193588 50μl $260 Buy
orb193588 100μl $360 Buy

Histone H2AX Antibody Chemical Properties, Uses, Production

Source

Rabbit

Reactivity

Human;Mouse;Rat;Monkey

Background

Histone H2A.X is a variant histone that represents approximately 10% of the total H2A histone proteins in normal human fibroblasts. H2A.X is required for checkpoint-mediated cell cycle arrest and DNA repair following double-stranded DNA breaks. DNA damage, caused by ionizing radiation, UV-light, or radiomimetic agents, results in rapid phosphorylation of H2A.X at Ser139 by PI3K-like kinases, including ATM, ATR, and DNA-PK. Within minutes following DNA damage, H2A.X is phosphorylated at Ser139 at sites of DNA damage to generate γ-H2A.X. This very early event in the DNA-damage response is required for recruitment of a multitude of DNA-damage response proteins, including MDC1, NBS1, RAD50, MRE11, 53BP1, and BRCA1. In addition to its role in DNA-damage repair, H2A.X is required for DNA fragmentation during apoptosis and is phosphorylated by various kinases in response to apoptotic signals. H2A.X is phosphorylated at Ser139 by DNA-PK in response to cell death receptor activation, c-Jun N-terminal Kinase in response to UV-A irradiation, and p38 MAPK in response to serum starvation. H2A.X is constitutively phosphorylated on Tyr142 in undamaged cells by WSTF. Upon DNA damage, and concurrent with phosphorylation of Ser139, Tyr142 is dephosphorylated at sites of DNA damage by recruited EYA1 and EYA3 phosphatases. While phosphorylation at Ser139 facilitates the recruitment of DNA repair proteins and apoptotic proteins to sites of DNA damage, phosphorylation at Tyr142 appears to determine which set of proteins are recruited. Phosphorylation of H2A.X at Tyr142 inhibits the recruitment of DNA repair proteins and promotes binding of pro-apoptotic factors such as JNK1. Mouse embryonic fibroblasts expressing only mutant H2A.X Y142F, which favors recruitment of DNA repair proteins over apoptotic proteins, show a reduced apoptotic response to ionizing radiation. Thus, it appears that the balance of H2A.X Tyr142 phosphorylation and dephosphorylation provides a switch mechanism to determine cell fate after DNA damage.

References

[1] Yuan, J. et al. (2010) FEBS Lett 584, 3717-24.
[2] Rogakou, E.P. et al. (1998) J Biol Chem 273, 5858-68.
[3] Burma, S. et al. (2001) J Biol Chem 276, 42462-7.
[4] Rogakou, E.P. et al. (1999) J Cell Biol 146, 905-16.
[5] Mukherjee, B. et al. (2006) DNA Repair (Amst) 5, 575-90.
[6] Solier, S. et al. (2009) Mol Cell Biol 29, 68-82.
[7] Lu, C. et al. (2006) Mol Cell 23, 121-32.
[8] Lu, C. et al. (2008) FEBS Lett 582, 2703-8.
[9] Cook, P.J. et al. (2009) Nature 458, 591-6.
[10] Xiao, A. et al. (2009) Nature 457, 57-62.

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Histone H2AX Antibody Suppliers

Global Suppliers ( 63)
Supplier Tel Email Country ProdList Advantage
Shanghai Universal Biotech Co.,Ltd 15921930842 15921930842 yh-wang@univ-bio.com China 25030 58
Supplier Advantage
Shanghai Universal Biotech Co.,Ltd 58
Histone H2AX Antibody