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    现在位置首页>实验试剂制品>PCR/RT-PCR/qPCR>DNA聚合酶> Lucigen高品质DNA聚合酶PyroPhage® 3173

    商品编号:54745
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    Lucigen高品质DNA聚合酶PyroPhage® 3173

    价    格:询价

    产    地:美国更新时间:2016/12/19 11:00:40

    品    牌:Lucigen型    号:PyroPhage® 3173

    状    态:正常点击量:2209

    15665882320
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    济南济威生物技术有限公司

    联 系 人:张经理

    电     话:0531-81307925

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    等     级: (第 1年)

    性     质:生产型,

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    Lucigen最新研制的PyroPhage 3173 DNA聚合酶,是一款高品质的耐热酶。现阶段PCR使用的酶,并非真正意义上的DNA复制酶,?#35805;?#37117;是来源于细菌或古细菌的修复聚合酶,这些酶在DNA复制的忠实性,进行性等方面存在固有的局限性。PyroPhage 3173来源于温泉中的噬菌体(Figure1),是真正的DNA复制酶,PyroPhage 3173不仅克服了上述局限性,并且能更高效的扩增DNA

    Figure 1. A hot spring in Yellowstone National Park. Lucigen is using its novel cloning technologies to identify and isolate new enzymes from rare, previously inaccessible hyperthermophilic microorganisms that inhabit the water column of such hot springs.

    PyroPhage? 3173 的优势

    ¨???????? PyroPhage? 3173更有利于PCR扩增?#21644;?#24066;售的PCR常用酶相比,PyroPhage? 3173对模板具有更有效的扩增性,PyroPhage? 3173能轻松有效地扩增4kb的模板(Figure2)

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    Figure 2. PCR amplification of a difficult template. PCR amplification of the Bacillus cobA gene (GC rich; strong secondary structure) using PyroPhage 3173 (Exo Minus) or the indicated DNA polymerase.

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    Figure 4. PyroPhage 3173 amplification efficiency. The PCR amplification efficiency of PyroPhage 3173 DNA Polymerase (Wild Type & Exo Minus) was compared to those of Taq and Vent? DNA polymerases using the fidelity assay template from Figure 2. Reaction products formed after the indicated number of cycles were quantified by densitometry of the gel bands. Cycle numbers for the PCRs are shown. Efficiency was calculated by published methods (1).

    ¨???????? 独特的等温扩增及RT-PCR能力:不论是单链还是双链DNA,不论是否具有引物,3173都能高效的等温扩增线状,环状,超螺旋状DNA(Figure 5) PyroPhage? 3173Exo Minus)同样适用于单管、单酶逆转录聚合酶链反应(RT-PCR)Figure 6)。

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    PyroPhage 3173 DNA Polymerase Wild Type Exo Minus?
    3’-5’ exonuclease strong none
    5’-3’ exonuclease none none
    Strand displacement strong strong
    Extension from nicks strong strong
    Thermostability (T? @95° in PCR buffer) 10 min. 10 min.
    Km dNTPs 40 μM 40 μM
    Km DNA 5.3 nM 5.3 nM
    Processivity not determined 47 nt
    Fidelity 8 X 104 1.5 X 104
    3’ ends of amplicons blunt single base A and G overhangs
    参考?#21335;?/span>

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    1Arezi, B., Xing, W., Sorge, J. A., Hogrefe, H. H. (2003). Amplification efficiency of thermostable DNA polymerases. Anal Biochem. 321(2), 226.

    2Hogrefe HH, Cline J, Lovejoy AE, Nielson KB. (2001). DNA polymerases from hyperthermophiles. Methods Enzymol. 334, 91.

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