H2AFX anticorps

N° du produit ABIN4903911

Détail du produit anti-H2AFX anticorps

Antigène: H2AFX (H2A Histone Family, Member X (H2AFX))

Reactivité: Humain, Rat

Hôte: Lapin

Clonalité: Polyclonal

Conjugué: Cet anticorp H2AFX est non-conjugé

Application: Western Blotting (WB), Immunohistochemistry (IHC)

Attributs du produit: Histone H2A.X is a variant histone that represents approximately 10 % of the total H2A histone proteins in normal human fibroblasts (1). H2A.X is required for checkpoint-mediated cell cycle arrest and DNA repair following double-stranded DNA breaks (1). 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 (2,3). Within minutes following DNA damage, H2A.X is phosphorylated at Ser139 at sites of DNA damage (4). 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 (1). 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 (JNK1) in response to UV-A irradiation, and p38 MAPK in response to serum starvation (5-8). H2A.X is constitutively phosphorylated on Tyr142 in undamaged cells by WSTF (Williams-Beuren syndrome transcription factor) (9,10). Upon DNA damage, and concurrent with phosphorylation of Ser139, Tyr142 is dephosphorylated at sites of DNA damage by recruited EYA1 and EYA3 phosphatases (9). 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 (9). 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 (9). Thus, it appears that the balance of H2A.X Tyr142 phosphorylation and dephosphorylation provides a switch mechanism to determine cell fate after DNA damage.

Purification: Affinity purification

Isotype: IgG

Information d'application

Indications d'application: WB 1:500-1:2000, IHC 1:50-1:200, IF 1:20-1:100, IP 1:20-1:100

Restrictions: For Research Use only

Stockage

Format: Liquid

Concentration: 1 mg/mL

Buffer: PBS with 0.02 % sodium azide, 50 % glycerol, pH 7.4

Agent conservateur: Sodium azide

Précaution d'utilisation: This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Conseil sur la manipulation: Avoid repeated freeze/thaw cycles.

Stock: -20 °C

Stockage commentaire: Store at -20°C.

Détails sur H2AFX

Antigène: H2AFX (H2A Histone Family, Member X (H2AFX))

Autre désignation: Histone H2A.X (H2AFX Produits)

Synonymes: anticorps H2A.X, anticorps H2A/X, anticorps H2AX, anticorps AW228881, anticorps H2ax, anticorps Hist5-2ax, anticorps gammaH2ax, anticorps zgc:56329, anticorps h2a.x, anticorps h2a/x, anticorps h2ax, anticorps RGD1566119, anticorps h2a, anticorps h2afx, anticorps H2A histone family member X, anticorps H2A histone family, member X, anticorps H2A histone family member X L homeolog, anticorps histone cluster 1, H2ah, anticorps histone cluster 2, H2ab S homeolog, anticorps histone H2AX, anticorps H2AFX, anticorps H2afx, anticorps h2afx, anticorps h2afx.L, anticorps HIST1H2AH, anticorps hist2h2ab.S, anticorps LOC100522201, anticorps LOC100720536

ID gène: 3014

UniProt: P16104

Pathways: Telomere Maintenance, Réparation de l'ADN, Positive Regulation of Response to DNA Damage Stimulus