5' to 3' exonuclease mutations of thermostable DNA polymerases
    22.
    发明授权
    5' to 3' exonuclease mutations of thermostable DNA polymerases 失效
    热稳定DNA聚合酶的5'至3'核酸外切酶突变

    公开(公告)号:US5795762A

    公开(公告)日:1998-08-18

    申请号:US458819

    申请日:1995-06-02

    IPC分类号: C12N9/12

    CPC分类号: C12N9/1252

    摘要: The present invention relates to thermostable DNA polymerases which exhibit a different level of 5' to 3' exonuclease activity than their respective native polymerases. Particular conserved amino acid domains in thermostable DNA polymerases are mutated or deleted to alter the 5' to 3' exonuclease activity of the polymerases. The present invention also relates to means for isolating and producing such altered polymerases.

    摘要翻译: 本发明涉及耐热性DNA聚合酶,其表现出与其各自的天然聚合酶不同的5'至3'核酸外切酶活性水平。 热稳定DNA聚合酶中特定的保守氨基酸结构域突变或缺失,以改变聚合酶的5'至3'核酸外切酶活性。 本发明还涉及用于分离和产生这种改变的聚合酶的方法。