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  4. Recombinant Simian virus 40 Large T antigen, partial

Recombinant Simian virus 40 Large T antigen, partial

  • 中文名稱：
    Recombinant Simian virus 40 Large T antigen ,partial
  • 貨號：
    CSB-YP355940SHP
  • 說明書：
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    Recombinant Simian virus 40 Large T antigen ,partial
  • 貨號：
    CSB-EP355940SHP
  • 說明書：
  • 規格：
  • 來源：
    E.coli
  • 其他：
  • 中文名稱：
    Recombinant Simian virus 40 Large T antigen ,partial
  • 貨號：
    CSB-EP355940SHP-B
  • 說明書：
  • 規格：
  • 來源：
    E.coli
  • 共軛：
    Avi-tag Biotinylated

    E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.

  • 其他：
  • 中文名稱：
    Recombinant Simian virus 40 Large T antigen ,partial
  • 貨號：
    CSB-BP355940SHP
  • 說明書：
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    Recombinant Simian virus 40 Large T antigen ,partial
  • 貨號：
    CSB-MP355940SHP
  • 說明書：
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    N/A
  • Uniprot No.：
  • 別名：
    Large T antigen; LT; LT-AG; EC 3.6.4.-
  • 種屬：
    Simian virus 40 (SV40)
  • 蛋白長度：
    Partial
  • 蛋白標簽：
    Tag?type?will?be?determined?during?the?manufacturing?process.
    The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
  • 產品提供形式：
    Lyophilized powder Warning: in_array() expects parameter 2 to be array, null given in /www/web/cusabio_cn/public_html/caches/caches_template/default/content/show_product_protein.php on line 662
    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.
  • 復溶：
    We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
  • 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：
    Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
    Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
  • 注意事項：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet ：
    Please contact us to get it.

產品評價

靶點詳情

  • 功能：
    Isoform large T antigen is a key early protein essential for both driving viral replication and inducing cellular transformation. Plays a role in viral genome replication by driving entry of quiescent cells into the cell cycle and by autoregulating the synthesis of viral early mRNA. Displays highly oncogenic activities by corrupting the host cellular checkpoint mechanisms that guard cell division and the transcription, replication, and repair of DNA. Participates in the modulation of cellular gene expression preceeding viral DNA replication. This step involves binding to host key cell cycle regulators retinoblastoma protein RB1/pRb and TP53. Induces the disassembly of host E2F1 transcription factors from RB1, thus promoting transcriptional activation of E2F1-regulated S-phase genes. Inhibits host TP53 binding to DNA, abrogating the ability of TP53 to stimulate gene expression. Plays the role of a TFIID-associated factor (TAF) in transcription initiation for all three RNA polymerases, by stabilizing the TBP-TFIIA complex on promoters. Initiates viral DNA replication and unwinding via interactions with the viral origin of replication. Binds two adjacent sites in the SV40 origin. The replication fork movement is facilitated by Large T antigen helicase activity. Activates the transcription of viral late mRNA, through host TBP and TFIIA stabilization. Interferes with histone deacetylation mediated by HDAC1, leading to activation of transcription. May inactivate the growth-suppressing properties of the E3 ubiquitin ligase CUL7.; Isoform 17kT antigen targets host RBL2 for degradation and promotes cell proliferation. Transactivates host cyclin A promoter through its J domain.
  • 基因功能參考文獻：
    1. Data show that p53 binds to the viral DNA at the SV40 large T-antigen (T-ag) promoter region and halts the progress of the infection. PMID: 27462916
    2. This crystal structure provides the first snapshot of a hexameric helicase binding to origin dsDNA, and suggests a possible mechanism of origin melting by lage T antigen during SV40 virus replication in eukaryotic cells. PMID: 27921994
    3. The authors identified four residues in the nucleotide pocket of large T antigen, cS430, tK419, cW393 and cL557 that selectively displayed more profound impact on using certain nucleotides for large T antigen DNA helicase activity. PMID: 28410592
  • 亞細胞定位：
    Host nucleus.
  • 數據庫鏈接：

    KEGG: vg:29031019



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