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  4. Recombinant Escherichia coli Elongation factor 4 (lepA)

Recombinant Escherichia coli Elongation factor 4 (lepA)

  • 中文名稱：
    大腸桿菌lepA重組蛋白
  • 貨號：
    CSB-YP350834ENV
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    大腸桿菌lepA重組蛋白
  • 貨號：
    CSB-EP350834ENV
  • 規格：
  • 來源：
    E.coli
  • 其他：
  • 中文名稱：
    大腸桿菌lepA重組蛋白
  • 貨號：
    CSB-EP350834ENV-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：
    大腸桿菌lepA重組蛋白
  • 貨號：
    CSB-BP350834ENV
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    大腸桿菌lepA重組蛋白
  • 貨號：
    CSB-MP350834ENV
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    lepA
  • Uniprot No.：
  • 別名：
    lepA; b2569; JW2553Elongation factor 4; EF-4; EC 3.6.5.n1; Ribosomal back-translocase LepA
  • 種屬：
    Escherichia coli (strain K12)
  • 蛋白長度：
    full length protein
  • 表達區域：
    1-599
  • 氨基酸序列
    MKNIRNFSII AHIDHGKSTL SDRIIQICGG LSDREMEAQV LDSMDLERER GITIKAQSVT LDYKASDGET YQLNFIDTPG HVDFSYEVSR SLAACEGALL VVDAGQGVEA QTLANCYTAM EMDLEVVPVL NKIDLPAADP ERVAEEIEDI VGIDATDAVR CSAKTGVGVQ DVLERLVRDI PPPEGDPEGP LQALIIDSWF DNYLGVVSLI RIKNGTLRKG DKVKVMSTGQ TYNADRLGIF TPKQVDRTEL KCGEVGWLVC AIKDIHGAPV GDTLTLARNP AEKALPGFKK VKPQVYAGLF PVSSDDYEAF RDALGKLSLN DASLFYEPES SSALGFGFRC GFLGLLHMEI IQERLEREYD LDLITTAPTV VYEVETTSRE VIYVDSPSKL PAVNNIYELR EPIAECHMLL PQAYLGNVIT LCVEKRGVQT NMVYHGNQVA LTYEIPMAEV VLDFFDRLKS TSRGYASLDY NFKRFQASDM VRVDVLINGE RVDALALITH RDNSQNRGRE LVEKMKDLIP RQQFDIAIQA AIGTHIIARS TVKQLRKNVL AKCYGGDISR KKKLLQKQKE GKKRMKQIGN VELPQEAFLA ILHVGKDNK
  • 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：
    Required for accurate and efficient protein synthesis under certain stress conditions. May act as a fidelity factor of the translation reaction, by catalyzing a one-codon backward translocation of tRNAs on improperly translocated ribosomes. Back-translocation proceeds from a post-translocation (POST) complex to a pre-translocation (PRE) complex, thus giving elongation factor G a second chance to translocate the tRNAs correctly. Binds to ribosomes in a GTP-dependent manner.
  • 基因功能參考文獻：
    1. The last 44 C-terminal amino acids of EF4 form a sub-domain within the C-terminal domain that is important for GTP-dependent function on the ribosome. PMID: 25712150
    2. Thus, EF4 has two opposing functions-at low-to-moderate levels of stress, the protein is protective by allowing stress-paused translation to resume; at high-levels of stress, EF4 helps bacteria self-destruct. PMID: 25491353
    3. (review) EF4 triggers back-translocation of the elongating ribosome, causing the translation machinery to move one codon backwards along the mRNA. PMID: 23662805
    4. Elevated intracellular Mg(2+) concentrations or low temperature inhibit protein synthesis, probably because of formation of aberrant elongating ribosomal states. We suggest that EF4 binds to these stuck ribosomes and remobilizes them PMID: 21300907
    5. EF4-dependent back-translocation proceeds from a post-translocation (POST) complex to a pre-translocation (PRE) complex via a four-step kinetic scheme (i.e., POST-->I(1)-->I(2)-->I(3)-->PRE PMID: 20045415
    6. LepA protein, present in all bacteria and mitochondria, is a third elongation factor required for accurate and efficient protein synthesis. PMID: 17110332
    7. The crystal structure of LepA from Escherichia coli at 2.8-A resolution, was determined. PMID: 18362332

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  • 亞細胞定位：
    Cell inner membrane; Peripheral membrane protein; Cytoplasmic side.
  • 蛋白家族：
    TRAFAC class translation factor GTPase superfamily, Classic translation factor GTPase family, LepA subfamily
  • 數據庫鏈接：


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