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  4. Recombinant Salmonella typhimurium Virulence sensor histidine kinase PhoQ (phoQ), partial

Recombinant Salmonella typhimurium Virulence sensor histidine kinase PhoQ (phoQ), partial

  • 中文名稱：
    鼠傷寒沙門菌phoQ重組蛋白
  • 貨號：
    CSB-YP318475SXB
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    鼠傷寒沙門菌phoQ重組蛋白
  • 貨號：
    CSB-EP318475SXB-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：
    鼠傷寒沙門菌phoQ重組蛋白
  • 貨號：
    CSB-BP318475SXB
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    鼠傷寒沙門菌phoQ重組蛋白
  • 貨號：
    CSB-MP318475SXB
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    phoQ
  • Uniprot No.：
  • 別名：
    Sensor histidine protein kinase/phosphatase PhoQ
  • 種屬：
    Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
  • 蛋白長度：
    Partial
  • 表達區域：
    215-487aa
  • 氨基酸序列
    WWSLRPIEALAREVRELEDHHREMLNPETTRELTSLVRNLNQLLKSERERYNKYRTTLTDLTHSLKTPLAVLQSTLRSLRNEKMSVSKAEPVMLEQISRISQQIGYYLHRASMRGSGVLLSRELHPVAPLLDNLISALNKVYQRKGVNISMDISPEISFVGEQNDFVEVMGNVLDNACKYCLEFVEISARQTDDHLHIFVEDDGPGIPHSKRSLVFDRGQRADTLRPGQGVGLAVAREITEQYAGQIIASDSLLGGARMEVVFGRQHPTQKEE
  • 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：
    Member of the two-component regulatory system PhoP/PhoQ which regulates the expression of genes involved in virulence, adaptation to acidic and low Mg(2+) environments and resistance to host defense antimicrobial peptides. Essential for intramacrophage survival of S.typhimurium. In low periplasmic Mg(2+), PhoQ functions as a membrane-associated protein kinase that undergoes autophosphorylation and subsequently transfers the phosphate to PhoP, resulting in the expression of PhoP-activated genes (PAG) and repression of PhoP-repressed genes (PRG). In high periplasmic Mg(2+), acts as a protein phosphatase that dephosphorylates phospho-PhoP, resulting in the repression of PAG and may lead to expression of some PRG. Essential for transcription of spiC inside macrophages by controlling the expression of the two-component regulatory system SsrB/SpiR (SsrA) and Pir at transcriptional and post-transcriptional levels respectively. Promotes expression of the two-component regulatory system PmrA/PmrB via activation of pmrD gene. Is required to attenuate bacterial growth within fibroblast cells and to enhance bacterial resistance to bile in intestinal cells. Negatively regulates prgH, which is required for invasion of epithelial cells. Involved in acid tolerance.
  • 基因功能參考文獻：
    1. These data suggest that when Salmonella experiences mildly acidic pH, the virulence regulator PhoP activation requires the sensor protein PhoQ to detect pH and the Salmonella-specific protein UgtL to amplify the PhoQ response. PMID: 28851823
    2. Salmonella enterica Typhimurium, bearing the acidic pH and divalent cation unresponsive phoQ(W104C-A128C) allele is virulent in mice, indicating that acidic pH and divalent cation sensing by PhoQ are dispensable for virulence. PMID: 26002083
    3. Changes in the periplasmic domain of PhoQ lead to conformational movements in the HAMP domain helices which disrupt interaction between the HAMP and the catalytic domains, thus promoting increased kinase activity. PMID: 26015499
    4. study describes a mechanism whereby the transcriptional activator PhoP elicits expression of dissimilar gene sets when its cognate sensor PhoQ is activated by different signals in the periplasm PMID: 24256574
    5. These data demonstrated that Salmonella Typhimurium PhoQ can sense cationic antimicrobial peptides and CRAMP serves as a putative direct PhoPQ activation signal in the mouse intestine. PMID: 22919691
    6. PhoP/Q regulon enables S. Typhimurium to adapt to intramacrophage stresses other than phagolysosomal fusion. PMID: 21511762
    7. RstB-induction increases the levels of phoP mRNA as well as PhoP protein, while lack of the phoPQ genes abolishes RstB-promoted transcription of the PhoP-regulated genes PMID: 20811812
    8. Enzymatic activity of Salmonella typhimurium PhoQ is directly activated by [host] antimicrobial peptides. Our findings reveal a mechanism by which bacteria sense small innate immune molecules to initiate a transcriptional program that promotes virulence PMID: 16096064
    9. induction of PhoP/PhoQ system results in initial surge of PhoP phosphorylation, occupancy of target promoters by PhoP & transcription of PhoP-activated genes; surge by PhoP's positive feedback loop is necessary to jump-start virulence program PMID: 17158330
    10. analysis of signal-dependent regulation in the PhoP/PhoQ system PMID: 18434315
    11. Mutational analysis and NMR spectroscopy of the periplasmic domains of Salmonella typhimurium PhoQ and Pseudomonas aeruginosa PhoQ indicate distinct mechanisms of binding divalent cation. PMID: 18532985
    12. SlyA has a role as a mediator in signal transduction from the PhoP/PhoQ system to other bacterial two-component systems in Salmonella PMID: 18678876
    13. Data report that the PhoP/PhoQ system regulates different Salmonella genes depending on whether the inducing signal is acidic pH or low Mg(2+). PMID: 19801407

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  • 亞細胞定位：
    Cell inner membrane; Multi-pass membrane protein.
  • 數據庫鏈接：

    KEGG: stm:STM1230

    STRING: 99287.STM1230



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