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  4. Recombinant Human immunodeficiency virus type 2 subtype A Protein Vpx (vpx)

Recombinant Human immunodeficiency virus type 2 subtype A Protein Vpx (vpx)

  • 中文名稱：
    Recombinant Human immunodeficiency virus type 2 subtype A Protein Vpx(vpx)
  • 貨號：
    CSB-YP325553HLU
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    Recombinant Human immunodeficiency virus type 2 subtype A Protein Vpx(vpx)
  • 貨號：
    CSB-EP325553HLU-B
  • 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 Human immunodeficiency virus type 2 subtype A Protein Vpx(vpx)
  • 貨號：
    CSB-BP325553HLU
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    Recombinant Human immunodeficiency virus type 2 subtype A Protein Vpx(vpx)
  • 貨號：
    CSB-MP325553HLU
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    vpx
  • Uniprot No.：
  • 別名：
    vpxProtein Vpx; Viral protein X; X ORF protein
  • 種屬：
    Human immunodeficiency virus type 2 subtype A (isolate BEN) (HIV-2)
  • 蛋白長度：
    full length protein
  • 表達區域：
    1-113
  • 氨基酸序列
    MTDPRERVPP GNSGEETIGE AFEWLERTIE ALNREAVNHL PRELIFQVWQ RSWRYWHDEQ GMSASYTKYR YLCLMQKAIF THFKRGCTCW GEDMGREGLE DQGPPPPPPP GLV
  • 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
    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：
    Plays a role in nuclear translocation of the viral pre-integration complex (PIC), thus is required for the virus to infect non-dividing cells. Targets specific host proteins for degradation by the 26S proteasome. Acts by associating with the cellular CUL4A-DDB1 E3 ligase complex through direct interaction with host VPRPB/DCAF-1. This change in the E3 ligase substrate specificity results in the degradation of host SAMHD1. In turn, SAMHD1 depletion allows viral replication in host myeloid cells by preventing SAMHD1-mediated hydrolysis of intracellular dNTPs necessary for reverse transcription.
  • 基因功能參考文獻：
    1. These results indicate that Vpx, in addition to SAMHD1, overcomes a previously unappreciated restriction for lentiviruses at the level of reverse transcription (RT)that acts independently of dNTP concentrations and is specific to resting CD4 T cells. PMID: 28228523
    2. zinc binding appears to mitigate flexibility of the three-helix fold of Vpx, thereby preventing dysfunction. PMID: 28284276
    3. Data indicate that proline residue P109 within the C-terminal poly-proline motif (PPM) of Vpx protein plays a unique role in the regulation of SAM domain and HD domain 1 protein SAMHD1 degradation. PMID: 25936766
    4. HIV-2 Vpr can trigger G2 cell cycle arrest through either CUL4A or CUL4B. PMID: 24719410
    5. Vpx expression results in decreased promoter binding activity of IRF5 PMID: 24532789
    6. Poly-proline motif in Vpx is critical for its efficient expression in cells. PMID: 24114794
    7. Data suggest that, in an evolutionary model of virus-host interactions, binding of Vpx/Vpr with SAMHD1 (and subsequent degradation of SAMHD1 [SAM domain/HD domain-containing protein 1]) exhibits dynamic requirements that have toggled back and forth. PMID: 23874202
    8. the crystal structure of a ternary complex of Vpx with the human E3 ligase substrate adaptor DCAF1 and the carboxy-terminal region of human SAMHD1 PMID: 24336198
    9. direct down-modulation of Vpx catalytic activity, mediated by the same binding event that leads to SAMHD1 recruitment to the E3 ubiquitin ligase for proteasome-dependent degradation PMID: 23677995
    10. Effective immune control of viral replication in HIV-2-infected individuals is not associated with increased Vpx-mediated degradation of SAMHD1. PMID: 23497283
    11. there are several Vpx residues required for SAMHD1 degradation PMID: 23076149
    12. The Vpx lentiviral accessory protein targets human SAMHD1 for degradation in the nucleus. PMID: 22973040
    13. Vpx targets SAMHD1 for degradation in a viral strategy to control cellular deoxynucleotide levels for efficient replication PMID: 22069334
    14. structure and cytopathogenic activity PMID: 16153874
    15. These studies map critical residues of the Vpx nuclear localization signal that are required for efficient infection of non-dividing cells. PMID: 16325220
    16. We found that insertion within the polyproline-containing C-terminus destabilizes nuclear localization, whereas mutating a second helix in the central domain disrupts viral packaging. PMID: 16457868
    17. results indicated that Vpx and Vpr of HIV-2 may cooperatively contribute to virion infectivity without affecting virion morphogenesis PMID: 16953064
    18. The results here clearly demonstrated that the entire Vpx protein is critical for reverse transcription of the HIV-2 genome in human monocyte-derived macrophages. PMID: 18495778
    19. when transferred in the context of a replication-competent viral clone, Vpx was required for replication in dendritic cells PMID: 18829761
    20. Vpx diverts the Cul4A-DDB1(DCAF1) ligase to inactivate an evolutionarily conserved factor, which restricts macrophage infection by HIV-2. PMID: 19264781

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  • 亞細胞定位：
    Virion. Host nucleus.
  • 蛋白家族：
    Lentivirus VPX protein family
  • 數據庫鏈接：

    KEGG: vg:1724714



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