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  4. POLQ Antibody

POLQ Antibody

  • 中文名稱：
    POLQ兔多克隆抗體
  • 貨號：
    CSB-PA006685
  • 規格：
    ￥1090
  • 其他：

產品詳情

  • Uniprot No.：
  • 基因名：
  • 別名：
    DKFZp781A0112 antibody; DNA polymerase eta antibody; DNA polymerase theta antibody; DPOLQ_HUMAN antibody; POLH antibody; POLQ antibody; Polymerase (DNA directed) theta antibody; PRO0327 antibody
  • 宿主：
    Rabbit
  • 反應種屬：
    Human
  • 免疫原：
    Synthesized peptide derived from the N-terminal region of Human DNA pol θ.
  • 免疫原種屬：
    Homo sapiens (Human)
  • 標記方式：
    Non-conjugated
  • 抗體亞型：
    IgG
  • 純化方式：
    The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
  • 濃度：
    It differs from different batches. Please contact us to confirm it.
  • 保存緩沖液：
    Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
  • 產品提供形式：
    Liquid
  • 應用范圍：
    IHC, ELISA
  • 推薦稀釋比：
    Application Recommended Dilution
    IHC 1:100-1:300
    ELISA 1:20000
  • Protocols：
  • 儲存條件：
    Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
  • 貨期：
    Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
  • 用途：
    For Research Use Only. Not for use in diagnostic or therapeutic procedures.

產品評價

靶點詳情

  • 功能：
    DNA polymerase that promotes microhomology-mediated end-joining (MMEJ), an alternative non-homologous end-joining (NHEJ) machinery triggered in response to double-strand breaks in DNA. MMEJ is an error-prone repair pathway that produces deletions of sequences from the strand being repaired and promotes genomic rearrangements, such as telomere fusions, some of them leading to cellular transformation. POLQ acts as an inhibitor of homology-recombination repair (HR) pathway by limiting RAD51 accumulation at resected ends. POLQ-mediated MMEJ may be required to promote the survival of cells with a compromised HR repair pathway, thereby preventing genomic havoc by resolving unrepaired lesions. The polymerase acts by binding directly the 2 ends of resected double-strand breaks, allowing microhomologous sequences in the overhangs to form base pairs. It then extends each strand from the base-paired region using the opposing overhang as a template. Requires partially resected DNA containing 2 to 6 base pairs of microhomology to perform MMEJ. The polymerase activity is highly promiscuous: unlike most polymerases, promotes extension of ssDNA and partial ssDNA (pssDNA) substrates. Also exhibits low-fidelity DNA synthesis, translesion synthesis and lyase activity, and it is implicated in interstrand-cross-link repair, base excision repair and DNA end-joining. Involved in somatic hypermutation of immunoglobulin genes, a process that requires the activity of DNA polymerases to ultimately introduce mutations at both A/T and C/G base pairs.
  • 基因功能參考文獻：
    1. Cells doubly deficient in Pol theta; and Lig4 exhibit 100% gene-targeting efficiency because of virtually no random integration events. PMID: 28695890
    2. Data suggest that translesion DNA synthesis mediated by (1) POLI-dependent pathway (2) REV1- and POLN-dependent pathway, or (3) POLtheta-dependent pathway occur in predominantly error-free manner in human cells. (POLI = DNA polymerase iota; REV1 = DNA repair protein-REV1; POLN = DNA polymerase nu; POLtheta = DNA polymerase theta) PMID: 29330301
    3. results suggest that bypass of Tg by Pol theta; results in mutations opposite the lesion, as well as frameshift mutations PMID: 29243925
    4. This article summarizes work on the expression and purification of the full-length protein, and then focus on the design, expression, and purification of an active C-terminal polymerase fragment. Strategies to obtain and improve crystals of a ternary POLQ complex (enzyme:DNA:nucleotide) are also presented, along with key elements of the structure. PMID: 28668117
    5. Our results indicate that there is a synthetic lethal relationship between pol theta;-mediated DNA repair and homologous recombination pathways PMID: 27533083
    6. Data suggest that error-free DNA replication through 3-deaza-3-methyladenine adduct is mediated via three different pathways dependent upon POL-iota/POL-kappa, POL-theta, and POL-zeta. PMID: 28939775
    7. Use fluorescence resonance energy transfer to monitor assembly of the human replicative polymerase holoenzyme. PMID: 23577232
    8. These results suggest that variants in the POLQ gene may be associated with the risk of Luminal breast cancer PMID: 25417172
    9. A DNA repair variant in POLQ (c.-1060A > G) is associated to hereditary breast cancer patients. PMID: 25409685
    10. Polymerase theta; uses a specialized thumb subdomain to establish unique upstream contacts to the primer DNA strand. PMID: 25775267
    11. Microhomology-mediated end-joining is dependent on Poltheta; in human cells. PMID: 25643323
    12. depletion of Poltheta; has a synergistic effect on cell survival in the absence of BRCA genes, suggesting that the inhibition of this mutagenic polymerase represents a valid therapeutic avenue for tumours carrying mutations in homology-directed repair genes PMID: 25642960
    13. results reveal a synthetic lethal relationship between the homologous-recombination pathway and Poltheta;-mediated repair in epithelial ovarian cancers, and identify Poltheta; as a novel druggable target for cancer therapy PMID: 25642963
    14. A role for DNA polymerase theta; in promoting replication through oxidative DNA lesion, thymine glycol, in human cells. PMID: 24648516
    15. POLQ possesses a DNA polymerase activity that appears to be template independent and allows efficient extension of single-stranded DNA as well as duplex DNA with either protruding or multiply mismatched 3'-OH termini. PMID: 22135286
    16. overexpression in breast cancer confers an adverse prognosis and is associated with key cancer pathways PMID: 20700469
    17. Data show that POLQ overexpression may be a promising genetic instability and prognostic marker for breast cancer. PMID: 20624954
    18. DNA polymerase theta purified from human cells is a high-fidelity enzyme. PMID: 12051913
    19. the isolation of the full-length human DNA POLQ gene, and an initial characterization of its gene product, DNA polymerase theta PMID: 14576298
    20. DNA Pol theta has a specialized function in lymphocytes and in tumor progression PMID: 14735462
    21. POLQ has a high efficiency in by-passing DNA damage. PMID: 15496986
    22. analysis of human DNA polymerase eta error-prone synthesis on DNA deoxyadenosine adducts PMID: 16188888
    23. The results demonstrate that activation of a UV-induced DNA damage response pathway, involving phosphorylation of RPA p34 by DNA-PK, is enhanced in cells lacking poleta. PMID: 16520097
    24. Pol eta can play an important role in determining the cellular sensitivity to therapeutic agents. PMID: 16603639
    25. DNA polymerase eta (Poleta) is responsible for efficient translesion synthesis (TLS) past cis-syn cyclobutane thymine dimers (TT dimers), the major DNA lesions induced by UV irradiation. PMID: 16824193
    26. Human DNA polymerase eta selectively produces a two-base deletion in copying the N2-guanyl adduct of 2-amino-3-methylimidazo[4,5-f]quinoline but not the C8 adduct at the NarI G3 site PMID: 16835218
    27. The enzymatic reactions with human DNA polymerase eta on oxidative products of guanine and 8-oxoG, is investigated. PMID: 17150533
    28. Evolutionary conservation of efficient T[CPD]T bypass by HsPoleta and AtPoleta may reflect a high degree of exposure of human skin and plants to solar UV-B radiation PMID: 18366182
    29. When copying undamaged DNA, DNA polymerase theta generates single base errors at rates 10- to more than 100-fold higher than for other family A members. PMID: 18503084
    30. Domain mapping of the 98-kDa enzyme by limited proteolysis and NaBH(4) cross-linking with a base excision repair intermediate revealed that the dRP lyase active site resides in a 24-kDa domain of Pol theta. PMID: 19188258

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  • 相關疾病：
    Breast cancer (BC)
  • 亞細胞定位：
    Nucleus. Chromosome.
  • 蛋白家族：
    DNA polymerase type-A family
  • 組織特異性：
    Highly expressed in testis.
  • 數據庫鏈接：

    HGNC: 9186

    OMIM: 114480

    KEGG: hsa:10721

    STRING: 9606.ENSP00000264233

    UniGene: Hs.241517



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