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  4. Recombinant Escherichia coli LexA repressor (lexA)

Recombinant Escherichia coli LexA repressor (lexA)

  • 中文名称：
    大肠杆菌lexA重组蛋白
  • 货号：
    CSB-YP363985ENV
  • 规格：
  • 来源：
    Yeast
  • 其他：
  • 中文名称：
    大肠杆菌lexA重组蛋白
  • 货号：
    CSB-EP363985ENV-B
  • 规格：
  • 来源：
    E.coli
  • 共轭：
    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：
  • 中文名称：
    大肠杆菌lexA重组蛋白
  • 货号：
    CSB-BP363985ENV
  • 规格：
  • 来源：
    Baculovirus
  • 其他：
  • 中文名称：
    大肠杆菌lexA重组蛋白
  • 货号：
    CSB-MP363985ENV
  • 规格：
  • 来源：
    Mammalian cell
  • 其他：

产品详情

  • 纯度：
    >85% (SDS-PAGE)
  • 基因名：
    lexA
  • Uniprot No.：
  • 别名：
    lexA; exrA; spr; tsl; umuA; b4043; JW4003LexA repressor; EC 3.4.21.88
  • 种属：
    Escherichia coli (strain K12)
  • 蛋白长度：
    full length protein
  • 表达区域：
    1-202
  • 氨基酸序列
    MKALTARQQE VFDLIRDHIS QTGMPPTRAE IAQRLGFRSP NAAEEHLKAL ARKGVIEIVS GASRGIRLLQ EEEEGLPLVG RVAAGEPLLA QQHIEGHYQV DPSLFKPNAD FLLRVSGMSM KDIGIMDGDL LAVHKTQDVR NGQVVVARID DEVTVKRLKK QGNKVELLPE NSEFKPIVVD LRQQSFTIEG LAVGVIRNGD WL
  • 蛋白标签：
    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.
  • 产品提供形式：
    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.
  • 复溶：
    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.
  • 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：
    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 ：
    Please contact us to get it.

产品评价

靶点详情

  • 功能：
    Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair. Implicated in hydroxy radical-mediated cell death induced by hydroxyurea treatment.The SOS response controls an apoptotic-like death (ALD) induced (in the absence of the mazE-mazF toxin-antitoxin module) in response to DNA damaging agents that is mediated by RecA and LexA.
  • 基因功能参考文献：
    1. The conformational flexibility of unbound LexA is the key element in establishing a co-ordinated SOS response. PMID: 21576225
    2. LexA regulated genes exhibit phenotypic heterogeneity as high level expression is observed in only a small subpopulation. PMID: 21070632
    3. NMR analysis of LexA catalytic domain in its active conformation PMID: 15929009
    4. oligomerization of LexA is proposed to be a possible regulation mechanism of the Escherichia coli SOS regulon in response to environmental conditions resulting in acidic intracellular pH. Structural changes on LexA repressor promoted by acidic pH. PMID: 16701697
    5. LexA binds to and represses the promoter of antC of coliphage N15. PMID: 17586637

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  • 蛋白家族：
    Peptidase S24 family
  • 数据库链接：

    KEGG: ecj:JW4003

    STRING: 316385.ECDH10B_4232