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  4. Recombinant Escherichia coli Elongation factor P (efp)

Recombinant Escherichia coli Elongation factor P (efp)

  • 中文名称：
    大肠杆菌efp重组蛋白
  • 货号：
    CSB-YP358853ENV
  • 规格：
    ￥2616
  • 图片：
    • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • 其他：

产品详情

  • 纯度：
    Greater than 90% as determined by SDS-PAGE.
  • 基因名：
    efp
  • Uniprot No.：
  • 别名：
    efp; b4147; JW4107Elongation factor P; EF-P
  • 种属：
    Escherichia coli (strain K12)
  • 蛋白长度：
    Full Length of Mature Protein
  • 来源：
    Yeast
  • 分子量：
    22.5kDa
  • 表达区域：
    2-188aa
  • 氨基酸序列
    ATYYSNDFRAGLKIMLDGEPYAVEASEFVKPGKGQAFARVKLRRLLTGTRVEKTFKSTDSAEGADVVDMNLTYLYNDGEFWHFMNNETFEQLSADAKAIGDNAKWLLDQAECIVTLWNGQPISVTPPNFVELEIVDTDPGLKGDTAGTGGKPATLSTGAVVKVPLFVQIGEVIKVDTRSGEYVSRVK
    Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
  • 蛋白标签：
    N-terminal 6xHis-tagged
  • 产品提供形式：
    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.
  • 缓冲液：
    Tris-based buffer,50% glycerol
  • 储存条件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保质期：
    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.
  • 货期：
    Basically, we can dispatch the products out in 1-3 working days after receiving your orders. 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.
  • 注意事项：
    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.

产品评价

靶点详情

  • 功能：
    Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys-34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, and N-acetyl-Phe tRNA(Phe)-primed poly(U)-directed poly(Phe) synthesis.
  • 基因功能参考文献：
    1. The activity of EF-P is controlled by recognition elements in the tRNA D-arm. PMID: 27216360
    2. study of the spatial distribution and ribosome-binding dynamics of EF-P in live E. coli cells; EF-P binds to and unbinds from translating ribosomes during at least 25% of all elongation events; it may bind during every elongation cycle PMID: 28588135
    3. Binding of EF-P stabilizes the P-site tRNA, particularly via interactions between its modification and the CCA end, thereby enforcing an alternative conformation of the polyproline-containing nascent chain, which allows a favorable substrate geometry for peptide bond formation. PMID: 29100052
    4. In the absence of EF-P, the presence of Rho utilization (rut) sites led to an ~30-fold decrease in translation of polyproline-encoding mRNAs. PMID: 27624127
    5. These findings indicate that the ability of a given PPX motif to initiate an EF-P-alleviated stall is strongly influenced by its local context. PMID: 25144653
    6. s demonstrate that EF-P is dispensable in Escherichia coli and Pseudomonas aeruginosa under laboratory growth conditions. PMID: 23591475
    7. Distinct XPPX sequence motifs induce ribosome stalling, which is rescued by the translation elongation factor EF-P. PMID: 24003132
    8. EF-P is an elongation factor that enhances translation of polyproline-containing proteins: In the absence of EF-P, ribosomes stall at polyproline stretches, whereas the presence of EF-P alleviates the translational stalling. PMID: 23239623
    9. EF-P and its eukaryotic homolog, eIF5A, are essential for the synthesis of a subset of proteins containing proline stretches in all cells. PMID: 23239624
    10. GenX-elongation factor P-lysyl adenylate analogue crystals belonged to the monoclinic space group P2(1), with unit-cell parameters a=105.93, b=102.96, c=119.94 A, beta=99.4 degrees, and diffracted to 2.5 A resolution PMID: 20823541
    11. reveal that the translation elongation factor P (EF-P) lysylation by GenX is enhanced by YjeK (lysine 2,3-aminomutase paralog) PMID: 20729861

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  • 亚细胞定位：
    Cytoplasm.
  • 蛋白家族：
    Elongation factor P family
  • 数据库链接：

    KEGG: ecj:JW4107

    STRING: 316385.ECDH10B_4340