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  4. Recombinant Xenopus laevis Transcription initiation factor IIB (gtf2b)

Recombinant Xenopus laevis Transcription initiation factor IIB (gtf2b)

  • 中文名称：
    有爪蟾蜍gtf2b重组蛋白
  • 货号：
    CSB-YP010001XBE
  • 规格：
  • 来源：
    Yeast
  • 其他：
  • 中文名称：
    有爪蟾蜍gtf2b重组蛋白
  • 货号：
    CSB-EP010001XBE
  • 规格：
  • 来源：
    E.coli
  • 其他：
  • 中文名称：
    有爪蟾蜍gtf2b重组蛋白
  • 货号：
    CSB-EP010001XBE-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：
    有爪蟾蜍gtf2b重组蛋白
  • 货号：
    CSB-BP010001XBE
  • 规格：
  • 来源：
    Baculovirus
  • 其他：
  • 中文名称：
    有爪蟾蜍gtf2b重组蛋白
  • 货号：
    CSB-MP010001XBE
  • 规格：
  • 来源：
    Mammalian cell
  • 其他：

产品详情

  • 纯度：
    >85% (SDS-PAGE)
  • 基因名：
    gtf2b
  • Uniprot No.：
  • 别名：
    gtf2b; Transcription initiation factor IIB; EC 2.3.1.48; General transcription factor TFIIB
  • 种属：
    Xenopus laevis (African clawed frog)
  • 蛋白长度：
    full length protein
  • 表达区域：
    1-316
  • 氨基酸序列
    MASTSRIDAL PKVTCPNHPD ALLVEDYRAG DMICSECGLV VGDRVIDVGS EWRTFSNDKA AADPSRVGDA QNPLLSGGDL TTMIGKGTGS ASFDEFGNSK YQNRRTMSSS DRAMMNAFKE ITNMSDRINL PRNIIDRTNN LFKQVYEQKS LKGRSNDAIA SACLYIACRQ EGVPRTFKEI CAVSRISKKE IGRCFKLILK ALETNVDLIT TGDFMSRFCS NLGLTKQVQM AATHIARKAV ELDLVPGRSP ISVAAAAIYM ASQASAEKRT QKEIGDIAGV ADVTIRQSYR LIYPRAPDLF PADFKFDTPV DKLPQL
  • 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：
    General transcription factor that plays a role in transcription initiation by RNA polymerase II (Pol II). Involved in the pre-initiation complex (PIC) formation and Pol II recruitment at promoter DNA. Together with the TATA box-bound TBP forms the core initiation complex and provides a bridge between TBP and the Pol II-TFIIF complex. Released from the PIC early following the onset of transcription during the initiation and elongation transition and reassociates with TBP during the next transcription cycle. Associates with chromatin to core promoter-specific regions. Binds to two distinct DNA core promoter consensus sequence elements in a TBP-independent manner; these IIB-recognition elements (BREs) are localized immediately upstream (BREu), 5'-[GC][GC][GA]CGCC-3', and downstream (BREd), 5'-[GA]T[TGA][TG][GT][TG][TG]-3', of the TATA box element. Modulates transcription start site selection. Exhibits also autoacetyltransferase activity that contributes to the activated transcription.
  • 亚细胞定位：
    Nucleus. Chromosome.
  • 蛋白家族：
    TFIIB family
  • 数据库链接：

    KEGG: xla:394390

    UniGene: Xl.47842