merck millipore,默克密理愽
  • merck millipore,默克密理博,14-493,Histone H2A Protein, human recombinant, 100 µg

  • merck millipore,默克密理博,14-493,Histone H2A Protein, human recombinant, 100 µg

    产品名称：Histone H2A Protein, human recombinant, 100 µg
    产品型号：14-493
    Recombinant human Histone H2A produced in E. coli, purified using FPLC. For use in Enzyme Assays.

    merck millipore,默克密理博,14-493,Histone H2A Protein, human recombinant, 100 µg

  • 产品介绍
  • merck millipore,默克密理博,14-493,Histone H2A Protein, human recombinant, 100 µg

    重要规格表

    主要应用 Entrez基因编号 Uni Prot编号
    EANM_002105.2P16104
    描述
    产品目录编号 14-493
    品牌系列 Upstate
    商名
    • Upstate
    描述 Histone H2A Protein, human recombinant, 100 µg
    概述 Recombinant human histone H2A
    Alternate Names
    • Histone H2A
    • H2A
    应用
    应用 Recombinant human Histone H2A produced in E. coli, purified using FPLC. For use in Enzyme Assays.
    主要应用
    • Enzyme Assay
    生物信息
    来源 Histone H2A produced in E. coli
    品种 Human
    特异活性 For Specific Activity data, refer to the Certificate of Analysis for individual lots of this enzyme.
    Entrez基因编号
    • NM_002105.2
    Entrez基因汇总 Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene encodes a member of the histone H2A family, and generates two transcripts through the use of the conserved stem-loop termination motif, and the polyA addition motif.
    基因符号
    • H2A.X
    • H2AFX
    • H2AX
    • H2a/x
    • H2A/X
    纯化方法 FPLC agarose column
    UniProt编号
    • P16104
    UniProt汇总 FUNCTION: SwissProt: P16104 # 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.
    SIZE: 143 amino acids; 15145 Da
    SUBUNIT: 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.
    SUBCELLULAR LOCATION: Nucleus.DEVELOPMENTAL STAGE: Synthesized in G1 as well as in S-phase.
    DOMAIN: SwissProt: P16104 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) 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 in response to ionizing radiation is mediated by both ATM and PRKDC while defects in DNA replication induce Ser-140 phosphorylation subsequent to activation of ATR and PRKDC. Dephosphorylation of Ser-140 by PP2A is required for DNA DSB repair. In meiosis, Ser-140 phosphorylation may occur at synaptonemal complexes during leptotene as an ATM-dependent response to the formation of programmed DSBs by SPO11. Ser-140 phosphorylation may subsequently occurs at unsynapsed regions of both autosomes and the XY bivalent during zygotene, downstream of ATR and BRCA1 activation. Ser-140 phosphorylation 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 may occur at sites of DNA-recombination subsequent to activation of the activation-induced cytidine deaminase AICDA. & Monoubiquitination of Lys-120 by RING1 and RNF2/RING2 complex gives a specific tag for epigenetic transcriptional repression (By similarity).
    SIMILARITY: Belongs to the histone H2A family.
    产品使用声明
    质量保证 routinely evaluated by its use as substrate for in vitro enzymatic reactions, such as acetylation by PCAF
    使用声明
    • 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.
    储存和货运信息
    存储条件 2 years at 4°C
    包装信息
    数量 100 µg

    merck millipore,默克密理博,14-493,Histone H2A Protein, human recombinant, 100 µg

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