货号：MABE205

品牌：Merck Millipore

规格：

目录价：￥4633.00

市场价格：￥3938.05

会员价格：￥3706.40

金山科研平台，产品价格货期咨询微信：jinshanbio Description: Anti-phospho-Histone H2A.X (Ser139) Antibody, clone EP854(2)Y, Rabbit | MABE205 View All» Promotional Text: Special Shipping Offer on Antibodies100% Performance Guaranteed View All» Specificity: This antibody recognizes Histone H2A.X phosphorylated at Ser139. View All» Molecular Weight: ~15 kDa observed View All» Epitope: Phosphorylated Ser139 View All» Immunogen: Synthetic phospho-peptide corresponding to human Histone H2A.X phosphorylated at Ser139. View All» Modifications: Phosphorylation View All» Clone: EP854(2)Y View All» Isotype: IgG View All» Background Information: As a member of the histone H2A family, histone H2A.x (H2A.x) is a variant histone H2A which replaces conventional H2A in a subset of nucleosomes. H2A.x is involved in the DNA repair of double-strand breakage (DSB) damage on nuclear DNA. After a double strand DNA break, H2A.x is rapidly phosphorylated at serine 139 by ATM kinase and becomes gamma-H2AFX. This phosphorylation step can extend up to several thousand nucleosomes from the actual site of the DSB and may mark the surrounding chromatin for recruitment of proteins required for DNA damage signaling and repair (1). As a part of posttranslational modifications during apoptosis caused by severe DNA damage, high expression of phosphorylated H2A.x is considered as an accurate indicator of apoptosis (2). View All» Species Reactivity:

• Human

• Mouse

• Rat
  View All» Species Reactivity Note: Demonstrated to react with human, mouse, and rat. View All» Application Notes: Immunocytochemistry Analysis: 1:50-100 dilution from a representative lot was used in IC. Immunohistochemistry Analysis: 1:50-100 dilution from a representative lot detected Histone H2A.X in human kidney transitionalcell carcinoma tissue. View All» Control: Etoposide untreated and treated Jurkat cell lysates View All» Quality Assurance: Evaluated by Western Blot in etoposide untreated and treated Jurkat cell lysates.Western Blot Analysis: 1:1,000-10,000 dilution of this antibody detected Histone H2A.X in Jurkat cell lysates untreated and etoposide treated. View All» Purification Method: Unpurified View All» Presentation: Rabbit Monoclonal in buffer containing 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl containing 40% Glycerol, 0.01% sodium azide and 0.05% BSA. View All» Storage Conditions: Stable for 1 year at -20ºC from date of receipt. Handling Recommendations: Upon first thaw, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below-20°C may cause glycerol containing Solutions to become frozen during storage. View All» UniProt Number: P16104 View All» Gene Symbol:
  • H2AX

  • H2A.X

  • H2A/X

  • H2a/x
    View All» Alternate Names:
    • H2A histone family, member X

    • histone H2A.x

    • H2AX histone
      View All» Usage Statement: Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. View All» Key Applications:
      • Western Blotting

      • Immunocytochemistry

      • Immunohistochemistry (Paraffin)
        View All» UniProt Summary: FUNCTION: Variant histone H2A which replaces conventional H2A in a subset of nucleosomes. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. 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. SUBUNIT STRUCTURE: The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA. Interacts with numerous proteins required for DNA damage signaling and repair when phosphorylated on Ser-140. These include MDC1, TP53BP1, BRCA1 and the MRN complex, composed of MRE11A, RAD50, and NBN. Interaction with the MRN complex is mediated at least in part by NBN. Also interacts with DHX9/NDHII when phosphorylated on Ser-140. Interacts with ARRB2; the interaction is detected in the nucleus upon OR1D2 stimulation. SUBCELLULAR LOCATION: Nucleus. Chromosome DEVELOPMENTAL STAGE: Synthesized in G1 as well as in S-phase.DOMAIN: The [ST]-Q motif constitutes a recognition sequence for kinases from the PI3/PI4-kinase family.PTM: Phosphorylated on Ser-140 (to form gamma-H2AFX or H2AX139ph) in response to DNA double strand breaks (DSBs) generated by exogenous genotoxic agents and by stalled replication forks, and may also occur during meiotic recombination events and immunoglobulin class switching in lymphocytes. Phosphorylation can extend up to several thousand nucleosomes from the actual site of the DSB and may mark the surrounding chromatin for recruitment of proteins required for DNA damage signaling and repair. Widespread phosphorylation may also serve to amplify the damage signal or aid repair of persistent lesions. Phosphorylation of Ser-140 (H2AX139ph) in response to ionizing radiation is mediated by both ATM and PRKDC while defects in DNA replication induce Ser-140 phosphorylation (H2AX139ph) subsequent to activation of ATR and PRKDC. Dephosphorylation of Ser-140 by PP2A is required for DNA DSB repair. In meiosis, Ser-140 phosphorylation (H2AX139ph) may occur at synaptonemal complexes during leptotene as an ATM-dependent response to the formation of programmed DSBs by SPO11. Ser-140 phosphorylation (H2AX139ph) may subsequently occurs at unsynapsed regions of both autosomes and the XY bivalent during zygotene, downstream of ATR and BRCA1 activation. Ser-140 phosphorylation (H2AX139ph) may also be required for transcriptional repression of unsynapsed chromatin and meiotic sex chromosome inactivation (MSCI), whereby the X and Y chromosomes condense in pachytene to form the heterochromatic XY-body. During immunoglobulin class switch recombination in lymphocytes, Ser-140 phosphorylation (H2AX139ph) may occur at sites of DNA-recombination subsequent to activation of the activation-induced cytidine deaminase AICDA. Phosphorylation at Tyr-143 (H2AXY142ph) by BAZ1B/WSTF determines the relative recruitment of either DNA repair or pro-apoptotic factors. Phosphorylation at Tyr-143 (H2AXY142ph) favors the recruitment of APBB1/FE65 and pro-apoptosis factors such as MAPK8/JNK1, triggering apoptosis. In contrast, dephosphorylation of Tyr-143 by EYA proteins (EYA1, EYA2, EYA3 or EYA4) favors the recruitment of MDC1-containing DNA repair complexes to the tail of phosphorylated Ser-140 (H2AX139ph). Monoubiquitination of Lys-120 (H2AXK119ub) by RING1 and RNF2/RING2 complex gives a specific tag for epigenetic transcriptional repression. Following DNA double-strand breaks (DSBs), it is ubiquitinated through 'Lys-63' linkage of ubiquitin moieties by the E2 ligase UBE2N and the E3 ligases RNF8 and RNF168, leading to the recruitment of repair proteins to sites of DNA damage. Monoubiquitination and ionizing radiation-induced 'Lys-63'-linked ubiquitination are distinct events.SEQUENCE SIMILARITIES: Belongs to the histone H2A family. View All» Product Name: Anti-phospho-Histone H2A.X (Ser139), clone EP854(2)Y, Rabbit Monoclonal View All» Antibody Type: Monoclonal Antibody View All» Qty/Pk: 100 µL View All» Format: Diluted Culture Supernatant View All» Host: Rabbit View All»
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