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  4. Recombinant Human Maternal embryonic leucine zipper kinase (MELK)

Recombinant Human Maternal embryonic leucine zipper kinase (MELK)

  • 中文名稱：
    人MELK重組蛋白
  • 貨號：
    CSB-YP013692HU
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    人MELK重組蛋白
  • 貨號：
    CSB-EP013692HU
  • 規格：
  • 來源：
    E.coli
  • 其他：
  • 中文名稱：
    人MELK重組蛋白
  • 貨號：
    CSB-EP013692HU-B
  • 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：
    人MELK重組蛋白
  • 貨號：
    CSB-BP013692HU
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    人MELK重組蛋白
  • 貨號：
    CSB-MP013692HU
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    MELK
  • Uniprot No.：
  • 別名：
    AI327312; hMELK; HPK 38; hPK38; KIAA0175; Likely ortholog of maternal embryonic leucine zipper kinase; Maternal embryonic leucine zipper kinase; MELK; MELK_HUMAN; mKIAA0175; MPK38; OTTHUMP00000021377; OTTHUMP00000046113; pEg3 kinase; Protein kinase Eg3; Protein kinase PK38; RP23 382O11.1; Tyrosine protein kinase MELK
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    full length protein
  • 表達區域：
    1-651
  • 氨基酸序列
    MKDYDELLKY YELHETIGTG GFAKVKLACH ILTGEMVAIK IMDKNTLGSD LPRIKTEIEA LKNLRHQHIC QLYHVLETAN KIFMVLEYCP GGELFDYIIS QDRLSEEETR VVFRQIVSAV AYVHSQGYAH RDLKPENLLF DEYHKLKLID FGLCAKPKGN KDYHLQTCCG SLAYAAPELI QGKSYLGSEA DVWSMGILLY VLMCGFLPFD DDNVMALYKK IMRGKYDVPK WLSPSSILLL QQMLQVDPKK RISMKNLLNH PWIMQDYNYP VEWQSKNPFI HLDDDCVTEL SVHHRNNRQT MEDLISLWQY DHLTATYLLL LAKKARGKPV RLRLSSFSCG QASATPFTDI KSNNWSLEDV TASDKNYVAG LIDYDWCEDD LSTGAATPRT SQFTKYWTES NGVESKSLTP ALCRTPANKL KNKENVYTPK SAVKNEEYFM FPEPKTPVNK NQHKREILTT PNRYTTPSKA RNQCLKETPI KIPVNSTGTD KLMTGVISPE RRCRSVELDL NQAHMEETPK RKGAKVFGSL ERGLDKVITV LTRSKRKGSA RDGPRRLKLH YNVTTTRLVN PDQLLNEIMS ILPKKHVDFV QKGYTLKCQT QSDFGKVTMQ FELEVCQLQK PDVVGIRRQR LKGDAWVYKR LVEDILSSCK V
  • 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
    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：
    Serine/threonine-protein kinase involved in various processes such as cell cycle regulation, self-renewal of stem cells, apoptosis and splicing regulation. Has a broad substrate specificity; phosphorylates BCL2L14, CDC25B, MAP3K5/ASK1 and ZNF622. Acts as an activator of apoptosis by phosphorylating and activating MAP3K5/ASK1. Acts as a regulator of cell cycle, notably by mediating phosphorylation of CDC25B, promoting localization of CDC25B to the centrosome and the spindle poles during mitosis. Plays a key role in cell proliferation and carcinogenesis. Required for proliferation of embryonic and postnatal multipotent neural progenitors. Phosphorylates and inhibits BCL2L14, possibly leading to affect mammary carcinogenesis by mediating inhibition of the pro-apoptotic function of BCL2L14. Also involved in the inhibition of spliceosome assembly during mitosis by phosphorylating ZNF622, thereby contributing to its redirection to the nucleus. May also play a role in primitive hematopoiesis.
  • 基因功能參考文獻：
    1. Study demonstrates that the interaction occurring between MELK and EZH2 promotes self-proliferation and stemness. PMID: 28536141
    2. In common culture conditions, the authors found that small molecule inhibition, genetic deletion, or acute depletion of MELK did not significantly affect cellular growth. PMID: 28926338
    3. Synthesis of MCL1, an antiapoptotic protein known to play a role in cancer cell survival during cell division, depends on the function of MELK-elF4B signaling. PMID: 27528663
    4. Inhibition of MELK (genetically and pharmacologically) induces radiation sensitivity. PMID: 27225691
    5. MELK is a host factor required for optimal uncoating of the HIV-1 core to promote viral cDNA synthesis. PMID: 28683086
    6. Here, the authors report that mutagenizing MELK with CRISPR/Cas9 has no effect on the fitness of basal breast cancer cell lines or cell lines from six other cancer types. Cells that harbor null mutations in MELK exhibit wild-type doubling times, cytokinesis, and anchorage-independent growth. PMID: 28337968
    7. MELK-inhibitor has a role in triple-negative breast cancer cells demonstrating context-dependent response with p53 as a key determinant PMID: 28235006
    8. MELK is an oncogenic kinase involved in the pathogenesis and recurrence of hepatocellular carcinoma. PMID: 27693640
    9. Inhibition or depletion of MELK reduced cell proliferation and anchorage-dependent and -independent growth in various ovarian cancer cell lines through a G2/M cell cycle arrest, eventually resulting in apoptosis. PMID: 28214016
    10. Report IL11RA and MELK amplification in gastric cancer cell lines and primary gastric adenocarcinomas. PMID: 27920471
    11. MELK expression in hepatocellular carcinoma is extremely intense compared to its expression reported in other types of cancer and could be a promising effective tumor marker of HCC. PMID: 27798878
    12. targeting MELK by the inhibition of both its catalytic activity and its protein stability might sensitize tumours to DNA-damaging agents or radiation therapy by lowering the DNA-damage threshold PMID: 26431963
    13. Together, these data indicate that MELK is a normally non-essential kinase, but is critical for basal-like breast cancer. PMID: 24844244
    14. EZH2 protects glioma stem cells from radiation-induced cell death in a MELK/FOXM1-dependent manner PMID: 25601206
    15. we report characterization of possible roles of MELK in acute myeloid leukemia PMID: 25365263
    16. insight has been brought by the discovery of a protein complex of FOXM1 with the mitotic kinase MELK in cancer stem cells in brain cancers, as this protein complex appears to be cancer-specific PMID: 25017123
    17. advanced cancers with OTSSP167 started in 2013, as the first-in-class MELK inhibitor. This review summarizes the current molecular understanding of MELK and the recent preclinical studies about MELK as a cancer therapeutic target. PMID: 24795222
    18. MELK promotes cell migration and invasion via the FAK/Paxillin pathway, and plays an important role in the occurrence and development of gastric cancer. PMID: 24885567
    19. our current knowledge of MELK function and recent discoveries in MELK signaling pathway were discussed. PMID: 24185907
    20. The structural and biochemical analyses unravel the molecular mechanisms for the autophosphorylation/activation of MELK and the dependence of its catalytic activity on reducing agents. PMID: 23922895
    21. Report MELK inhibitor that suppresses the growth of a wide range of human tumor cell lines. PMID: 23283305
    22. Data indicate that expression-based risk indices of three genes UBE2C, TPX2, and MELK were more strongly associated with poor 5-year survival in adenocarcinoma patients. PMID: 23357462
    23. MELK is upregulated in high-grade prostate cancer PMID: 22945237
    24. MELK could be associated with increased resistance of colorectal cancer cells against radiation and 5-FU. PMID: 21806965
    25. High MELK is associated with brain tumor. PMID: 21558073
    26. MELK expression is increased in breast cancer tissue and this is associated with poor survival. The most important factors controlling Bcl-G activity are post-translational modification by Fau & MELK. PMID: 19671159
    27. pEg3 is a potential regulator of the G2/M progression and may act antagonistically to the CDC25B phosphatase,pEg3 kinase is able to specifically phosphorylate CDC25B in vitro. One phosphorylation site was identified and corresponded to serine 323 PMID: 12400006
    28. analysis of MELK substrate specificity and activity regulation PMID: 16216881
    29. the kinase activity of MELK is likely to affect mammary carcinogenesis through inhibition of the pro-apoptotic function of Bcl-GL PMID: 17280616
    30. a critical role for MELK in the proliferation of brain tumors, including their stem cells, and suggest that MELK may be a compelling molecular target for treatment of high-grade brain tumors. PMID: 17722061
    31. Maternal embryonic leucine zipper kinase transcript abundance correlates with malignancy grade in astrocytomas PMID: 17960622

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  • 相關疾病：
    Defects in MELK are associated with some cancers, such as brain or breast cancers. Expression is dramatically increased in aggressive undifferentiated tumors, correlating with poor patient outcome in breast and brain cancers, suggesting a role in tumor-initiating cells and proliferation via its function in cell proliferation regulation.
  • 亞細胞定位：
    Cell membrane; Peripheral membrane protein.
  • 蛋白家族：
    Protein kinase superfamily, CAMK Ser/Thr protein kinase family, SNF1 subfamily
  • 組織特異性：
    Expressed in placenta, kidney, thymus, testis, ovary and intestine.
  • 數據庫鏈接：

    HGNC: 16870

    OMIM: 607025

    KEGG: hsa:9833

    STRING: 9606.ENSP00000298048

    UniGene: Hs.184339



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