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  4. Recombinant Human Transcription factor IIIB 90 kDa subunit (BRF1)

Recombinant Human Transcription factor IIIB 90 kDa subunit (BRF1)

  • 中文名稱：
    Recombinant Human Transcription factor IIIB 90 kDa subunit(BRF1)
  • 貨號：
    CSB-EP852925HU
  • 說明書：
  • 規格：
  • 來源：
    E.coli
  • 其他：
  • 中文名稱：
    Recombinant Human Transcription factor IIIB 90 kDa subunit(BRF1)
  • 貨號：
    CSB-EP852925HU-B
  • 說明書：
  • 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：
    Recombinant Human Transcription factor IIIB 90 kDa subunit(BRF1)
  • 貨號：
    CSB-BP852925HU
  • 說明書：
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    Recombinant Human Transcription factor IIIB 90 kDa subunit(BRF1)
  • 貨號：
    CSB-MP852925HU
  • 說明書：
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    Name:BRF1 Synonyms:BRF, GTF3B, TAF3B2, TAF3C
  • Uniprot No.：
  • 別名：
    B related factor 1; B-related factor 1; BRF; BRF-1; brf1; BRF1 homolog, subunit of RNA polymerase III transcription initiation factor IIIB (S. cerevisiae); General transcription factor IIIB, 90kD subunit; GTF3B; hBRF; hTFIIIB90; RNA polymerase III; subunit 2; TAF3B2; TAF3C; TAFIII90; TATA box binding protein (TBP) associated factor 3C; TATA box binding protein (TBP) associated factor, RNA polymerase III, GTF3B subunit 2; TATA box-binding protein-associated factor; TBP associated factor, RNA polymerase III, 90kD; TF3B_HUMAN; TF3B90; TFIIIB90; Transcription factor IIIB 90 kDa subunit; Transcription initiation factor IIIB
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    full length protein
  • 表達區域：
    1-677
  • 氨基酸序列
    MTGRVCRGCG GTDIELDAAR GDAVCTACGS VLEDNIIVSE VQFVESSGGG SSAVGQFVSL DGAGKTPTLG GGFHVNLGKE SRAQTLQNGR RHIHHLGNQL QLNQHCLDTA FNFFKMAVSR HLTRGRKMAH VIAACLYLVC RTEGTPHMLL DLSDLLQVNV YVLGKTFLLL ARELCINAPA IDPCLYIPRF AHLLEFGEKN HEVSMTALRL LQRMKRDWMH TGRRPSGLCG AALLVAARMH DFRRTVKEVI SVVKVCESTL RKRLTEFEDT PTSQLTIDEF MKIDLEEECD PPSYTAGQRK LRMKQLEQVL SKKLEEVEGE ISSYQDAIEI ELENSRPKAK GGLASLAKDG STEDTASSLC GEEDTEDEEL EAAASHLNKD LYRELLGGAP GSSEAAGSPE WGGRPPALGS LLDPLPTAAS LGISDSIREC ISSQSSDPKD ASGDGELDLS GIDDLEIDRY ILNESEARVK AELWMRENAE YLREQREKEA RIAKEKELGI YKEHKPKKSC KRREPIQAST AREAIEKMLE QKKISSKINY SVLRGLSSAG GGSPHREDAQ PEHSASARKL SRRRTPASRS GADPVTSVGK RLRPLVSTQP AKKVATGEAL LPSSPTLGAE PARPQAVLVE SGPVSYHADE EADEEEPDEE DGEPCVSALQ MMGSNDYGCD GDEDDGY
  • 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 Warning: in_array() expects parameter 2 to be array, null given in /www/web/cusabio_cn/public_html/caches/caches_template/default/content/show_product_protein.php on line 662
    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：
    General activator of RNA polymerase which utilizes different TFIIIB complexes at structurally distinct promoters. The isoform 1 is involved in the transcription of tRNA, adenovirus VA1, 7SL and 5S RNA. Isoform 2 is required for transcription of the U6 promoter.
  • 基因功能參考文獻：
    1. In an analysis of families with a history of colorectal cancer, we associated germline mutations in BRF1 with predisposition to colorectal cancer. Seven of the identified variants (1 detected in 2 families) affected BRF1 mRNA splicing, protein stability, or expression and/or function. PMID: 28912018
    2. Site-directed mutagenesis combined with kinase assays and specific phosphosite immunodetection identified Ser-54 (S54) and Ser-334 (S334) as PKA target amino acids in vitro and in vivo. Phosphomimetic mutation of the C-terminal S334 markedly increased TIS11b half-life and, unexpectedly, enhanced TIS11b activity on mRNA decay. PMID: 27708140
    3. Mutations in BRF1 cause severe short stature, remarkably delayed bone age, dysmorphic features, cerebellar hypoplasia and cognitive dysfunction inherited in an autosomal recessive pattern. PMID: 27748960
    4. Brf1 expression is increased in human HCC cases, which is correlated with shorter survival times. PMID: 26701855
    5. BRF1 mutations that reduce protein activity cause neurodevelopmental anomalies, suggesting that BRF1-mediated Pol III transcription is required for normal cerebellar and cognitive development. PMID: 25561519
    6. hnRNP F is a co-factor in a subset of tristetraprolin/BRF1/BRF2-mediated mRNA decay. PMID: 24978456
    7. these observations are in favor of a cell- and context-dependent regulation of Tis11b by hypoxia, which then contributes to modulation of angiogenesis. PMID: 21832157
    8. Alcohol induces RNA polymerase III-dependent transcription through c-Jun by co-regulating TATA-binding protein (TBP) and Brf1 expression. PMID: 21106530
    9. results identify a human Pol III isoform and isoform-specific functions in the regulation of cell growth and transformation PMID: 20154270
    10. CK2 forms a stable complex with TFIIIB and activates RNA polymerase III transcription in human cells. PMID: 11997511
    11. human small nuclear RNA gene-specific transcription factor IIIB complex de novo on and off promoter PMID: 12016223
    12. BRF1 accelerated mRNA decay and antagonized the stabilizing effect of PI3-kinase, while mutation of the zinc fingers abolished both function and ARE-binding activity. This approach identifies BRF1 as an essential regulator of ARE-dependent mRNA decay. PMID: 12198173
    13. Data report that protein kinase B (PKB/Akt) stabilizes ARE transcripts by phosphorylating butyrate response factor (BRF1) at serine 92. PMID: 15538381
    14. These results suggest a direct role of an RNA polymerase III transcription factor in the targeting process. PMID: 16982688
    15. depletion of endogenous TTP and BRF-1 proteins, or overexpression of dominant-negative mutant TTP proteins, impairs the localization of reporter AU-rich element mRNAs PMID: 17369404
    16. Maf1 occupancy of Pol III genes is inversely correlated with that of the initiation factor TFIIIB (subunit Brf1) and Pol III. PMID: 17499043
    17. the hypo-phosphorylated Rb appeared to be largely sequestered into a complex with Brf1, which resulted in the blockage of Rb function to repress E2F1 transactivation PMID: 17877750
    18. Brf1 gene was identified in the genome-wide loss-of-function genetic screen as putative tumor suppressor located at 14q32.33. PMID: 17968325
    19. MK2-mediated inhibition of BRF1 requires phosphorylation at S54, S92, and S203. PMID: 18326031
    20. deregulation of Brf1 and Brf2 expression could be a key mechanism responsible for the observed deregulation of RNA pol III transcription in cancer cells PMID: 18700021

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  • 相關疾病：
    Cerebellofaciodental syndrome (CFDS)
  • 亞細胞定位：
    Nucleus.
  • 蛋白家族：
    TFIIB family
  • 數據庫鏈接：

    HGNC: 11551

    OMIM: 604902

    KEGG: hsa:2972

    STRING: 9606.ENSP00000448323

    UniGene: Hs.424484



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