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  4. Recombinant Human Probable ATP-dependent RNA helicase DDX4 (DDX4)

Recombinant Human Probable ATP-dependent RNA helicase DDX4 (DDX4)

  • 货号：
    CSB-YP882074HU
  • 规格：
  • 来源：
    Yeast
  • 其他：
  • 货号：
    CSB-EP882074HU
  • 规格：
  • 来源：
    E.coli
  • 其他：
  • 货号：
    CSB-EP882074HU-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：
  • 货号：
    CSB-BP882074HU
  • 规格：
  • 来源：
    Baculovirus
  • 其他：
  • 货号：
    CSB-MP882074HU
  • 规格：
  • 来源：
    Mammalian cell
  • 其他：

产品详情

  • 纯度：
    >85% (SDS-PAGE)
  • 基因名：
  • Uniprot No.：
  • 别名：
    DDX 4; Ddx4; DDX4_HUMAN; DEAD (Asp Glu Ala Asp) box polypeptide 4; DEAD box protein 4; DEAD/H (Asp-Glu-Ala-Asp/His) box polypeptide 4; MVH; Probable ATP dependent RNA helicase DDX4; Probable ATP-dependent RNA helicase DDX4; VASA; Vasa homolog
  • 种属：
    Homo sapiens (Human)
  • 蛋白长度：
    full length protein
  • 表达区域：
    1-724
  • 氨基酸序列
    MGDEDWEAEI NPHMSSYVPI FEKDRYSGEN GDNFNRTPAS SSEMDDGPSR RDHFMKSGFA SGRNFGNRDA GECNKRDNTS TMGGFGVGKS FGNRGFSNSR FEDGDSSGFW RESSNDCEDN PTRNRGFSKR GGYRDGNNSE ASGPYRRGGR GSFRGCRGGF GLGSPNNDLD PDECMQRTGG LFGSRRPVLS GTGNGDTSQS RSGSGSERGG YKGLNEEVIT GSGKNSWKSE AEGGESSDTQ GPKVTYIPPP PPEDEDSIFA HYQTGINFDK YDTILVEVSG HDAPPAILTF EEANLCQTLN NNIAKAGYTK LTPVQKYSIP IILAGRDLMA CAQTGSGKTA AFLLPILAHM MHDGITASRF KELQEPECII VAPTRELVNQ IYLEARKFSF GTCVRAVVIY GGTQLGHSIR QIVQGCNILC ATPGRLMDII GKEKIGLKQI KYLVLDEADR MLDMGFGPEM KKLISCPGMP SKEQRQTLMF SATFPEEIQR LAAEFLKSNY LFVAVGQVGG ACRDVQQTVL QVGQFSKREK LVEILRNIGD ERTMVFVETK KKADFIATFL CQEKISTTSI HGDREQRERE QALGDFRFGK CPVLVATSVA ARGLDIENVQ HVINFDLPST IDEYVHRIGR TGRCGNTGRA ISFFDLESDN HLAQPLVKVL TDAQQDVPAW LEEIAFSTYI PGFSGSTRGN VFASVDTRKG KSTLNTAGFS SSQAPNPVDD ESWD
  • 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：
    ATP-dependent RNA helicase required during spermatogenesis. Required to repress transposable elements and preventing their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Involved in the secondary piRNAs metabolic process, the production of piRNAs in fetal male germ cells through a ping-pong amplification cycle. Required for PIWIL2 slicing-triggered piRNA biogenesis: helicase activity enables utilization of one of the slice cleavage fragments generated by PIWIL2 and processing these pre-piRNAs into piRNAs.
  • 基因功能参考文献：
    1. Four sterility-related genes, including BOLL, DDX4, HORMAD1, and MAEL, were found to have increased methylation at CpGs of the promoter regions and decreased mRNA expressions in nonobstructive azoospermia and hypospermatogenesis (HS) testis and are believed to be associated with HS. PMID: 28342926
    2. positivity for DDX4 gene was detected in 17 of 39 males with nonobstructive azoospermia which was due to maturation arrest in 35.3% of cases, due to incomplete Sertoli cell only in 23.5% and due to complete Sertoli cell only in 41.2%. PMID: 28000927
    3. Results suggest that DDX4 positively regulates cell cycle progression of diverse somatic-derived blood cancer cells, implying its broad contributions to the cancer cell phenotype. PMID: 28612512
    4. DDX4 cell-free seminal mRNA was absent in 44% of Sertoli cell-only syndrome cases diagnosed by testicular histopathology, but present in all patients presenting with maturation arrest or hypospermatogenesis PMID: 27211570
    5. The 20-mer peptide (residues 228-247) of human DDX-4, an ATP-dependent RNA helicase known to regulate germ cell development, binds to a unique shallow binding surface on RanBPM formed by highly conserved loops on the surface of the beta-sheet with two aspartates on one end, a positive patch on the opposite end, and a tryptophan lining at the bottom of the surface. PMID: 27622290
    6. Data show that intrinsically disordered N terminus of DEAD-box RNA helicase Ddx4 forms organelles in HeLa cells and in vitro. PMID: 25747659
    7. this study reports the first analysis and comparison of the expression patterns and colocalization of DDX4 and CD133 in 59 ovarian cancer patients via tissue microarray and immunofluorescence analysis to identify the expression patterns and relationship of those two markers in ovarian cancer cells. PMID: 24727449
    8. Data suggest that VASA shows differential expression in ovary; in resting primordial follicle reserve in childhood/pre-puberty, VASA is associated with Balbiani's body space in germ cell; once follicle enters growing pool, VASA is undetectable. PMID: 23315064
    9. Vasa/Ddx4 gene can be involved in regulation of ground and primed states of pluripotency PMID: 22288104
    10. overexpression of VASA and or DAZL, in both embryonic and induced pluripotent stem cells promoted differentiation into primordial germ cells, and maturation and progression through meiosis was enhanced. PMID: 22162380
    11. Report the generation/characterization of embryonic stem cell lines carrying a VASA-pEGFP-1 reporter construct that expresses GFP in a population of differentiating cells showing expression of characteristic markers of primordial germ cells. PMID: 19937754
    12. marker for normal and malignant germ cells PMID: 11850529
    13. The expression of VASA mRNA and protein was significantly decreased in the sperm of oligozoospermic men. PMID: 17486274
    14. VASA showed a differential pattern of expression throughout the differentiation and proliferative phase and prophase I to finally associate with Balbiani's body in primordial and primary follicles. PMID: 18534994
    15. Over-expression of VASA abrogates the G2 checkpoint, induced by DNA damage, by down-regulating the expression of 14-3-3sigma. Results suggest that VASA may play a role in the progression of ovarian cancer or serve as a valuable marker of tumorigenesis. PMID: 18805576
    16. Highly methylated regions of the VASA gene are associated with maturation arrest phenotype in the testis. PMID: 19629140

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  • 亚细胞定位：
    Cytoplasm. Cytoplasm, perinuclear region.
  • 蛋白家族：
    DEAD box helicase family, DDX4/VASA subfamily
  • 组织特异性：
    Expressed only in ovary and testis. Expressed in migratory primordial germ cells in the region of the gonadal ridge in both sexes.
  • 数据库链接：

    HGNC: 18700

    OMIM: 605281

    KEGG: hsa:54514

    STRING: 9606.ENSP00000424838

    UniGene: Hs.223581