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公开(公告)号:US08372619B2
公开(公告)日:2013-02-12
申请号:US12172963
申请日:2008-07-14
申请人: Zhenyu Zhu , Aine Blanchard , Shuang-Yong Xu , Shengxi Guan , Hua Wei , Penghua Zhang , Dapeng Sun , Siu-hong Chan
发明人: Zhenyu Zhu , Aine Blanchard , Shuang-Yong Xu , Shengxi Guan , Hua Wei , Penghua Zhang , Dapeng Sun , Siu-hong Chan
IPC分类号: C12N9/22
CPC分类号: C12N15/1058 , C12N9/16 , C12N9/22 , C12N15/1034 , C12N15/1086
摘要: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions include restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
摘要翻译: 提供了具有改变性质的酶的组合物和方法,其涉及诱变的系统方法和允许选择所需蛋白质的筛选试验。 该方法的实施方案特别适用于修饰限制性核酸内切酶如星形活性的特定性质。 组合物包括具有降低的星形活性的限制性内切核酸酶,其由整体保真度指数改善因子定义。
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公开(公告)号:US20090029376A1
公开(公告)日:2009-01-29
申请号:US12172963
申请日:2008-07-14
申请人: Zhenyu Zhu , Aine Blanchard , Shuang-Yong Xu , Shengxi Guan , Hua Wei , Penghua Zhang , Dapeng Sun , Siu-Hong Chan
发明人: Zhenyu Zhu , Aine Blanchard , Shuang-Yong Xu , Shengxi Guan , Hua Wei , Penghua Zhang , Dapeng Sun , Siu-Hong Chan
CPC分类号: C12N15/1058 , C12N9/16 , C12N9/22 , C12N15/1034 , C12N15/1086
摘要: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions include restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
摘要翻译: 提供了具有改变性质的酶的组合物和方法,其涉及诱变的系统方法和允许选择所需蛋白质的筛选试验。 该方法的实施方案特别适用于修饰限制性内切核酸酶如星形活性的特定性质。 组合物包括具有降低的星形活性的限制性内切核酸酶,其由整体保真度指数改善因子定义。
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