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  4. Recombinant Human papillomavirus type 16 protein E4 (E4)

Recombinant Human papillomavirus type 16 protein E4 (E4)

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  • 中文名稱：
    Recombinant Human papillomavirus type 16 protein E4(E4)
  • 貨號：
    CSB-EP356968HML
  • 規(guī)格：
    ￥2328
  • 圖片：
    • Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP356968HML could indicate that this peptide derived from E.coli-expressed Human papillomavirus type 16 E4.
    • Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP356968HML could indicate that this peptide derived from E.coli-expressed Human papillomavirus type 16 E4.
  • 其他：

產(chǎn)品詳情

  • 純度：
    Greater than 85% as determined by SDS-PAGE.
  • 基因名：
    E4
  • Uniprot No.：
  • 別名：
    E4; Protein E4; E1^E4
  • 種屬：
    Human papillomavirus type 16
  • 蛋白長度：
    Full Length
  • 來源：
    E.coli
  • 分子量：
    17.5 kDa
  • 表達區(qū)域：
    1-92aa
  • 氨基酸序列
    MADPAAATKYPLLKLLGSTWPTTPPRPIPKPSPWAPKKHRRLSSDQDQSQTPETPATPLSCCTETQWTVLQSSLHLTAHTKDGLTVIVTLHP
    Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
    If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.
  • 蛋白標(biāo)簽：
    N-terminal 10xHis-tagged and C-terminal Myc-tagged
  • 產(chǎn)品提供形式：
    Liquid or Lyophilized powder
    Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
  • 緩沖液：
    Tris-based buffer，50% glycerol
  • 儲存條件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保質(zhì)期：
    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
    Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
  • 貨期：
    3-7 business days
  • 注意事項：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet & COA：
    Please contact us to get it.

產(chǎn)品評價

靶點詳情

  • 功能：
    Contributes to multiple aspects of the viral life cycle including viral genome amplification, suppression of suprabasal cell differentiation and egress of newly formed virions. Induces host cell cycle arrest at the G2 phase by associating with and preventing the nuclear entry of host CDK1/cyclin B1 complexes. Inhibits cellular DNA replication by preventing loading of host replication licensing proteins MCM2 and MCM7 onto chromatin. Within the cytoplasm, associates with host kinase SRPK1, a splicing factor regulator, and inhibits its activity. Therefore, E4 favors expression of late viral transcripts by inhibiting SRPK1-mediated phosphorylation of host serine-arginine (SR) proteins that have critical roles in mRNA metabolism. Late in the infectious cycle, E4 also acts to diminish the integrity of the keratinocyte by disrupting the keratin cytoskeleton and inducing apoptosis through alteration of mitochondrial function to facilitate egress of the newly formed virions.
  • 基因功能參考文獻：
    1. These results suggest that 16E4-mediated enhancement of genome amplification involves its cell cycle inhibition and cellular kinase activation functions, with E4 modifying the activity and function of viral replication proteins including E1 PMID: 28306742
    2. Expression of the HPV16 E4 and E5 proteins results in a substantial change in the composition of the cell membrane and extracellular space, associated with alterations in cell adhesion and differentiation. PMID: 24898764
    3. 20 cervical cyology samples with HPV16 were tested by RT-PCR for HPV16 E4 mRNA, found in sqaumous intraepithelial lesion and squamous carcinoma, but not in samples negative for intrepithelial lesion. E4 expression assay may be useful in cancer diagnosis. PMID: 22299437
    4. The data suggest a model in which the expression of 16E5 from the major E1--E4-E5 mRNA promotes T57 phosphorylation of E1--E4 by ERK and keratin binding. PMID: 19211765
    5. identified the N-terminus of E2 as the first example of a viral protein that directly binds the E1--E4 protein PMID: 19783272

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  • 亞細(xì)胞定位：
    Host cytoplasm. Host nucleus.
  • 蛋白家族：
    Papillomaviridae E4 protein family
  • 數(shù)據(jù)庫鏈接：

    KEGG: vg:1489076