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Recombinant Escherichia coli DNA gyrase subunit B(gyrB), partial

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  • 中文名稱:
    Recombinant Escherichia coli DNA gyrase subunit B(gyrB), partial
  • 貨號:
    CSB-EP360158ENVb0
  • 規(guī)格:
    ¥2328
  • 圖片:
    • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • 其他:

產(chǎn)品詳情

  • 純度:
    Greater than 90% as determined by SDS-PAGE.
  • 生物活性:
    Not Test
  • 基因名:
    gyrB
  • Uniprot No.:
  • 別名:
    Type IIA topoisomerase subunit GyrB
  • 種屬:
    Escherichia coli (strain K12)
  • 蛋白長度:
    Partial
  • 來源:
    E.coli
  • 分子量:
    46.7 kDa
  • 表達(dá)區(qū)域:
    2-392aa
  • 氨基酸序列
    SNSYDSSSIKVLKGLDAVRKRPGMYIGDTDDGTGLHHMVFEVVDNAIDEALAGHCKEIIVTIHADNSVSVQDDGRGIPTGIHPEEGVSAAEVIMTVLHAGGKFDDNSYKVSGGLHGVGVSVVNALSQKLELVIQREGKIHRQIYEHGVPQAPLAVTGETEKTGTMVRFWPSLETFTNVTEFEYEILAKRLRELSFLNSGVSIRLRDKRDGKEDHFHYEGGIKAFVEYLNKNKTPIHPNIFYFSTEKDGIGVEVALQWNDGFQENIYCFTNNIPQRDGGTHLAGFRAAMTRTLNAYMDKEGYSKKAKVSATGDDAREGLIAVVSVKVPDPKFSSQTKDKLVSSEVKSAVEQQMNELLAEYLLENPTDAKIVVGKIIDAARAREAARRAREMT
    Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
    If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.
  • 蛋白標(biāo)簽:
    N-terminal 10xHis-tagged
  • 產(chǎn)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.
  • 緩沖液:
    If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
  • 復(fù)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(zhì)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:
    3-7 business days
  • 注意事項(xiàng):
    Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
  • Datasheet & COA:
    Please contact us to get it.

產(chǎn)品評價

靶點(diǎn)詳情

  • 功能:
    DNA gyrase negatively supercoils closed circular double-stranded DNA in an ATP-dependent manner to maintain chromosomes in an underwound state. This makes better substrates for topoisomerase 4 (ParC and ParE) which is the main enzyme that unlinks newly replicated chromosomes in E.coli. Gyrase catalyzes the interconversion of other topological isomers of double-stranded DNA rings, including catenanes. Relaxes negatively supercoiled DNA in an ATP-independent manner. E.coli gyrase has higher supercoiling activity than other characterized bacterial gyrases; at comparable concentrations E.coli gyrase introduces more supercoils faster than M.tuberculosis gyrase, while M.tuberculosis gyrase has higher decatenation than supercoiling activity compared to E.coli. E.coli makes 15% more negative supercoils in pBR322 plasmid DNA than S.typhimurium; the S.typhimurium GyrB subunit is toxic in E.coli, while the E.coli copy can be expressed in S.typhimurium even though the 2 subunits have 777/804 residues identical. The enzymatic differences between E.coli gyrase and topoisomerase IV are largely due to the GyrA C-terminal domain (approximately residues 524-841) and specifically the GyrA-box.
  • 基因功能參考文獻(xiàn):
    1. Among nalidixic acid resistant isolates...1 (2%) isolate showed gyrB (A660-T660) SNP. PMID: 27496516
    2. The GyrB subunit from Escherichia coli has been investigated, namely the ATP binding pocket both considering the protein without ligands and bound with the inhibitors clorobiocin, novobiocin and 5'-adenylyl-beta-gamma-imidodiphosphate. PMID: 21216167
    3. ParA binds DNA non-specifically in the presence of ATP. PMID: 20659294
    4. The insert domain of gyrB may have two functions, acting as a steric buttress to pre-configure the primary DNA-binding site, and serving as a relay that may help coordinate communication between different functional domains. PMID: 20675723
    5. double role played by metal ions in the catalytic steps involving DNA gyrase B PMID: 16223508
    6. These results reveal an important function for Par systems in plasmid DNA segregation that is likely to be conserved in bacteria. PMID: 18208495

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  • 亞細(xì)胞定位:
    Cytoplasm.
  • 蛋白家族:
    Type II topoisomerase family
  • 數(shù)據(jù)庫鏈接:

    KEGG: ecj:JW5625

    STRING: 316407.85676345



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