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  4. Recombinant Rat DNA polymerase beta (Polb)

Recombinant Rat DNA polymerase beta (Polb)

  • 货号：
    CSB-YP018302RA
  • 规格：
  • 来源：
    Yeast
  • 其他：
  • 货号：
    CSB-EP018302RA
  • 规格：
  • 来源：
    E.coli
  • 其他：
  • 货号：
    CSB-EP018302RA-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-BP018302RA
  • 规格：
  • 来源：
    Baculovirus
  • 其他：
  • 货号：
    CSB-MP018302RA
  • 规格：
  • 来源：
    Mammalian cell
  • 其他：

产品详情

  • 纯度：
    >85% (SDS-PAGE)
  • 基因名：
  • Uniprot No.：
  • 别名：
    PolbDNA polymerase beta; EC 2.7.7.7; EC 4.2.99.-
  • 种属：
    Rattus norvegicus (Rat)
  • 蛋白长度：
    Full length protein
  • 表达区域：
    1-335
  • 氨基酸序列
    MSKRKAPQET LNGGITDMLV ELANFEKNVS QAIHKYNAYR KAASVIAKYP HKIKSGAEAK KLPGVGTKIA EKIDEFLATG KLRKLEKIRQ DDTSSSINFL TRVTGIGPSA ARKLVDEGIK TLEDLRKNED KLNHHQRIGL KYFEDFEKRI PREEMLQMQD IVLNEVKKLD PEYIATVCGS FRRGAESSGD MDVLLTHPNF TSESSKQPKL LHRVVEQLQK VRFITDTLSK GETKFMGVCQ LPSENDENEY PHRRIDIRLI PKDQYYCGVL YFTGSDIFNK NMRAHALEKG FTINEYTIRP LGVTGVAGEP LPVDSEQDIF DYIQWRYREP KDRSE
  • 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：
    Repair polymerase that plays a key role in base-excision repair. Has 5'-deoxyribose-5-phosphate lyase (dRP lyase) activity that removes the 5' sugar phosphate and also acts as a DNA polymerase that adds one nucleotide to the 3' end of the arising single-nucleotide gap. Conducts 'gap-filling' DNA synthesis in a stepwise distributive fashion rather than in a processive fashion as for other DNA polymerases.
  • 基因功能参考文献：
    1. The I260Q variant of DNA polymerase beta is an efficient mutator polymerase with fairly indiscriminate misincorporation activities opposite all template bases. PMID: 23651085
    2. The closed state of E295K has a more distorted active site than the active site in the wild-type Polb. PMID: 22651551
    3. decline in pol beta activity started between 30 and 45 days postnatal in all the tissues. Post mitotic tissues showed pronounced decline than the proliferating tissues PMID: 22219134
    4. at low pH the chemical step is rate limiting for catalysis, but at high pH, a postchemistry conformational step is rate limiting due to a pH-dependent increase in the rate of nucleotidyl transfer PMID: 22010960
    5. These results point to the hinge region of DNA polymerase beta as being critical in the maintenance of the proper geometry of the dNTP binding pocket. PMID: 20108981
    6. single stranded DNA interactions and kinetics PMID: 11700054
    7. Changes in the activity and expression of DNA polymerase beta are mediated via cAMP and the A-kinase system, and that phosphorylation of this enzyme is also involved in this expression. PMID: 12088874
    8. pol beta may have a role in UV lesion bypass and deregulated pol beta may enhance UV-induced genetic instability PMID: 12388548
    9. data show that changes in liver expression of DNA polymerase beta, Ref-1, proliferating cell nuclear antigen, and Bax are associated with peroxisome proliferator-induced carcinogenesis in rats but not in hamsters. PMID: 12565796
    10. pol beta binds to dsDNA oligomers with the site-size of the enzyme-dsDNA complex n = 5 +/- 1 base pairs PMID: 12741854
    11. NMR data indicate that the nucleotide-DNA interaction appears to be essential for conformational activation PMID: 15248749
    12. the 8-kDa domain had two inhibitor binding areas; Three amino acid residues (Lys60, Leu77, and Thr79) of the 8-kDa domain bound to LCA and compound 2 and four amino acid residues (Leu11, Lys35, His51, and Thr79) of the 8-kDa domain bound to compound 9. PMID: 15311928
    13. Lys, Arg, Asp, Asn, and Glu substitutions for Ile at hinge residue 260 of pol beta yield enzymes with impaired activity or accuracy. PMID: 15751954
    14. the subdomain-closing conformational change occurs before binding of the catalytic Mg(II) while the rate-limiting step occurs after binding of the catalytic Mg(II) PMID: 15794655
    15. DNA polymerase beta discriminates the correct from incorrect substrate during the binding step. PMID: 15901725
    16. The upregulation of base-excision repair activities after ischemic preconditioning was likely because of increased expression of DNA Polymerase beta. PMID: 16001017
    17. data support a role for the flexible loop in pol beta error discrimination PMID: 16042415
    18. describe a site-directed mutational analysis in which the key amino acids (L11, K35, H51, K60, L77, and T79), which are direct interaction sites in the domain, were substituted with K, A, A, A, K, and A, respectively PMID: 16996474
    19. Loop II of pol beta functions to maintain accurate DNA synthesis by a direct or indirect influence on the nucleotide binding pocket. PMID: 19013261
    20. for Pol beta, fidelity is dictated by the differences in free energy required to reach the highest energy transition state of the chemical step. PMID: 19231836
    21. NMR assignments of the full-length protein (335 residues, 39 kDa) in the presence of a double gap--double hairpin DNA (22 nucleotides, 7 kDa) PMID: 19421423

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  • 亚细胞定位：
    Nucleus. Cytoplasm.
  • 蛋白家族：
    DNA polymerase type-X family
  • 数据库链接：

    KEGG: rno:29240

    STRING: 10116.ENSRNOP00000026039

    UniGene: Rn.9346