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  4. Recombinant Human Eukaryotic initiation factor 4A-I (EIF4A1)

Recombinant Human Eukaryotic initiation factor 4A-I (EIF4A1)

In Stock
  • 中文名稱：
    人EIF4A1重組蛋白
  • 貨號：
    CSB-EP007550HU
  • 規格：
    ￥1836
  • 圖片：
    • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • 其他：

產品詳情

  • 純度：
    Greater than 90% as determined by SDS-PAGE.
  • 基因名：
    EIF4A1
  • Uniprot No.：
  • 別名：
    (eIF-4A-I)(eIF4A-I)(ATP-dependent RNA helicase eIF4A-1)
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    Full Length of Mature Protein
  • 來源：
    E.coli
  • 分子量：
    53.5 kDa
  • 表達區域：
    2-406aa
  • 氨基酸序列
    SASQDSRSRDNGPDGMEPEGVIESNWNEIVDSFDDMNLSESLLRGIYAYGFEKPSAIQQRAILPCIKGYDVIAQAQSGTGKTATFAISILQQIELDLKATQALVLAPTRELAQQIQKVVMALGDYMGASCHACIGGTNVRAEVQKLQMEAPHIIVGTPGRVFDMLNRRYLSPKYIKMFVLDEADEMLSRGFKDQIYDIFQKLNSNTQVVLLSATMPSDVLEVTKKFMRDPIRILVKKEELTLEGIRQFYINVEREEWKLDTLCDLYETLTITQAVIFINTRRKVDWLTEKMHARDFTVSAMHGDMDQKERDVIMREFRSGSSRVLITTDLLARGIDVQQVSLVINYDLPTNRENYIHRIGRGGRFGRKGVAINMVTEEDKRTLRDIETFYNTSIEEMPLNVADLI
    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.
  • 蛋白標簽：
    N-terminal 10xHis-tagged and C-terminal Myc-tagged
  • 產品提供形式：
    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.
  • 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：
    3-7 business days
  • 注意事項：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet & COA：
    Please contact us to get it.

產品評價

靶點詳情

  • 功能：
    ATP-dependent RNA helicase which is a subunit of the eIF4F complex involved in cap recognition and is required for mRNA binding to ribosome. In the current model of translation initiation, eIF4A unwinds RNA secondary structures in the 5'-UTR of mRNAs which is necessary to allow efficient binding of the small ribosomal subunit, and subsequent scanning for the initiator codon.
  • 基因功能參考文獻：
    1. Star-PAP-specific polyadenylation sites usage regulates the expression of the eukaryotic translation initiation factor EIF4A1, the tumor suppressor gene PTEN and the long non-coding RNA NEAT1. PMID: 28911096
    2. our data demonstrate that the common effects of eIF4A1 and eIF4E on translation are mediated by the coding region and 3'UTR PMID: 27879264
    3. our data identify the eIF4F complex as an important upstream regulator of TORC1, which acts via TSC2 to inactivate TORC1 upon withdrawal of amino acids PMID: 26988032
    4. Our results demonstrate that miR-133a plays a pivotal role in colorectal cancer by inhibiting cell proliferation, invasion, and migration by targeting oncogenic eukaryotic translation initiation factor 4A1, which acts as a tumor suppressor and may provide a new potential therapeutic target in colorectal cancer PMID: 28466778
    5. miR-1284 can function as a new regulator to reduce gastric cancer multidrug resistant cells by targeting EIF4A1. PMID: 26936591
    6. Studies indicate a developing focus on targeting eukaryotic initiation factor 4A eIF4A1 and eIF4A2 as cancer therapy. PMID: 26614665
    7. Immunohistochemical analysis was performed on over 3000 breast tumors to investigate the relationship among expression of eIF4A1, the helicase-modulating proteins eIF4B, eIF4E and PDCD4, and clinical outcome. PMID: 25611378
    8. Collectively, these data suggested that a potential role of NS4A in antagonizing host antiviral defense is by recruiting eIF4AI and escaping the translation inhibition mediated by PKR. PMID: 25866185
    9. eIF4A functions as an adenosine triphosphate-dependent processive helicase when complexed with two accessory proteins, eIF4G and eIF4B. PMID: 26113725
    10. demonstrate that DAP5 associates with eIF2beta and eIF4AI to stimulate IRES-dependent translation of cellular mRNAs PMID: 25779044
    11. Studies indicate that eukaryotic initiation factor 4AI (EIF4AI) undergoes large conformational transitions, while unwinding RNA hairpins. PMID: 24909782
    12. Data indicate that caspase recruitment domain family, member 11 protein CARD11 has complex 5'UTRs and is sensitive to eIF4A RNA helicase inhibition. PMID: 25320244
    13. Increased Expression of EIF4A1 is associated with poor response to Brachytherapy in Cervical Cancer. PMID: 24844222
    14. report of an eIF4A RNA helicase-dependent mechanism of translational control that contributes to oncogenesis and underlies the anticancer effects of silvestrol and related compounds PMID: 25079319
    15. The E186 residue was found to be of significance for RNA-dependent ATPase activity for eIF4AI alone and in the presence of eIF4AI-binding domains of eIF4GI, binding between eIF4AI and eIF4GI domains were also significantly influenced by mutation of E186. PMID: 24471916
    16. Findings implicate phosphorylation of eIF4G1(Ser1232) by Cdk1:cyclin B and its inhibitory effects on eIF4A helicase activity in the mitotic translation initiation shift. PMID: 24248602
    17. Eukaryotic translation initiation factor 4A1 (eIF4A1) is a direct target of miR-US25-2-3p. PMID: 23747307
    18. Regulation of MUC1-C expression is mediated by the PI3K/AKT pathway and the eIF4A RNA helicase. PMID: 22689062
    19. The results indicated that eIF4AI and eIF4AII expression are linked and that the two protein isoforms exhibit functional differences. PMID: 22589333
    20. Duplex unwinding and ATPase activities of the DEAD-box helicase eIF4A are coupled by eIF4G and eIF4B. PMID: 21840318
    21. study found Burkholderia pseudomallei BPSL1549 acted as a potent cytotoxin against eukaryotic cells; it promotes deamidation of glutamine-339 of the translation initiation factor eIF4A, abolishing its helicase activity and inhibiting translation PMID: 22076380
    22. analysis of the tandem MA-3 region of Pdcd4 protein and characterization of its interactions with eIF4A and eIF4G PMID: 21454508
    23. Studies indicate that eIF4A (DDX2), together with its accessory proteins eIF4B and eIF4H, is thought to act as a helicase that unwinds secondary structures in the mRNA 5' UTR. PMID: 21427765
    24. EIF4A and eIF4G proteins are not responsible for the selective translation of viral mRNAs and the translational shut-off of cellular protein synthesis. PMID: 21377182
    25. Inhibition of eIF4A reduced the synthesis of APP and tau. PMID: 20927385
    26. These findings identify PKP1 as a regulator of translation and proliferation via modulation of eIF4A1 activity. PMID: 20156963
    27. Comparative characterization of two DEAD-box RNA helicases in superfamily II: human translation-initiation factor 4A and hepatitis C virus non-structural protein 3 (NS3) helicase. PMID: 11903057
    28. Results indicate that not only binding to eIF4A but also prevention of eIF4A binding to the MA-3 domain of eIF4Gc contributes to the mechanism by which Pdcd4 inhibits translation. PMID: 15082783
    29. analysis of cells of eIF4GIf molecules lacking either the PABP-binding site, the eIF3-binding site, the middle domain eIF4A-binding site, or the C-terminal segment that includes the second eIF4A-binding site PMID: 17130132
    30. Results report that 15d-PGJ2 blocks translation through inactivation of translational initiation factor eIF4A. PMID: 18034160
    31. the PDCD4 MA3 domains compete with the eIF4G MA3 domain and RNA for eIF4A binding. PDCD4 inhibits translation initiation by displacing eIF4G and RNA from eIF4A. PMID: 18296639
    32. The interaction of eIF4AI with two accessory factors, eIF4B and eIF4H, was studied. PMID: 18719248
    33. Study reports the topology of the eIF4A/4G/4H helicase complex, which is built from multiple experimentally observed domain-domain contacts. PMID: 19203580

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  • 蛋白家族：
    DEAD box helicase family, eIF4A subfamily
  • 數據庫鏈接：

    HGNC: 3282

    OMIM: 602641

    KEGG: hsa:1973

    STRING: 9606.ENSP00000293831

    UniGene: Hs.129673



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