Libraries of optimized cytochrome P450 enzymes and the optimized P450 enzymes
    3.
    发明授权
    Libraries of optimized cytochrome P450 enzymes and the optimized P450 enzymes 有权
    优化的细胞色素P450酶和优化的P450酶的文库

    公开(公告)号:US08603949B2

    公开(公告)日:2013-12-10

    申请号:US10869813

    申请日:2004-06-15

    IPC分类号: C40B50/02

    CPC分类号: C12N9/0071

    摘要: The present disclosure teaches that the recombination of homologous sequences of P450 enzymes, with the aid of SCHEMA to predict a resulting protein structure, is able to generate libraries of chimeras with significant functional diversity. Additionally, the members of these libraries demonstrate superior or unexpected new properties, which correlate with other factors that are observable in the library. Thus, the making of libraries of optimized P450 enzymes, the analysis of libraries to identify an optimized subset, and the optimized chimeras with improved or altered functionalities are all taught in the present disclosure.

    摘要翻译: 本公开内容指出,借助于SCHEMA来预测所得蛋白质结构的P450酶的同源序列的重组能够产生具有显着功能多样性的嵌合体库。 此外,这些图书馆的成员展示了优秀或意想不到的新属性,这与库中可观察到的其他因素相关。 因此,在本公开内容中教导了制备优化的P450酶的文库,分析库以鉴定优化的子集,以及具有改进或改变的功能的优化的嵌合体。

    Peroxide-driven cytochrome P450 oxygenase variants
    5.
    发明申请
    Peroxide-driven cytochrome P450 oxygenase variants 有权
    过氧化物驱动的细胞色素P450加氧酶变体

    公开(公告)号:US20090142821A1

    公开(公告)日:2009-06-04

    申请号:US12287681

    申请日:2008-10-11

    IPC分类号: C12N9/02

    CPC分类号: C12N9/0071 C12Y114/14001

    摘要: The invention relates to novel variants of cytochrome P450 oxygenases. These variants have an improved ability to use peroxide as an oxygen donor as compared to the corresponding wild-type enzyme. These variants also have an improved thermostability as compared to the cytochrome P450 BM-3 F87A mutant. Preferred variants include cytochrome P450 BM-3 heme domain mutants having 158V, F87A, H100R, F107L, A135S, M145A/V, N239H, S274T, L3241, I366V, K434E, E442K, and/or V446I amino acid substitutions.

    摘要翻译: 本发明涉及细胞色素P450加氧酶的新变体。 与相应的野生型酶相比,这些变体具有改善使用过氧化物作为供氧体的能力。 与细胞色素P450 BM-3 F87A突变体相比,这些变体也具有改善的热稳定性。 优选的变体包括具有158V,F87A,H100R,F107L,A135S,M145A / V,N239H,S274T,L3241,I366V,K434E,E442K和/或V446I氨基酸取代的细胞色素P450 BM-3血红素结构域突变体。

    Peroxide-driven cytochrome P450 oxygenase variants
    6.
    发明授权
    Peroxide-driven cytochrome P450 oxygenase variants 有权
    过氧化物驱动的细胞色素P450加氧酶变体

    公开(公告)号:US07465567B2

    公开(公告)日:2008-12-16

    申请号:US10125640

    申请日:2002-04-16

    CPC分类号: C12N9/0071 C12Y114/14001

    摘要: The invention relates to novel variants of cytochrome P450 oxygenases. These variants have an improved ability to use peroxide as an oxygen donor as compared to the corresponding wild-type enzyme. These variants also have an improved thermostability as compared to the cytochrome P450 BM-3 F87A mutant. Preferred variants include cytochrome P450 BM-3 heme domain mutants having I58V, F87A, H100R, F107L, A135S, M145A/V, N239H, S274T, L324I, I366V, K434E, E442K, and/or V446I amino acid substitutions.

    摘要翻译: 本发明涉及细胞色素P450加氧酶的新变体。 与相应的野生型酶相比,这些变体具有改善使用过氧化物作为供氧体的能力。 与细胞色素P450 BM-3 F87A突变体相比,这些变体也具有改善的热稳定性。 优选的变体包括具有I58V,F87A,H100R,F107L,A135S,M145A / V,N239H,S274T,L324I,I366V,K434E,E442K和/或V446I氨基酸取代的细胞色素P450 BM-3血红素结构域突变体。

    Thermostable peroxide-driven cytochrome P450 oxygenase variants and methods of use
    7.
    发明授权
    Thermostable peroxide-driven cytochrome P450 oxygenase variants and methods of use 有权
    耐热过氧化物驱动的细胞色素P450加氧酶变体和使用方法

    公开(公告)号:US07435570B2

    公开(公告)日:2008-10-14

    申请号:US10916369

    申请日:2004-08-11

    CPC分类号: C12N9/0077

    摘要: The invention relates to novel variants of cytochrome P450 oxygenases. These variants have at least one mutation improving their ability to use peroxide as an oxygen donor as compared to the corresponding wild-type enzyme. The variants also have at least one mutation improving thermostability as compared to the parent enzyme or corresponding wild-type enzyme. Preferred variants include cytochrome P450 BM-3 heme domain variants having L52I, I58V, F87A, H100R, S106R, F107L, A135S, M145A/V, A184V, N239H, S274T, L324I, V340M, I366V, K434E, E442K, and/or V446I amino acid substitutions.

    摘要翻译: 本发明涉及细胞色素P450加氧酶的新变体。 与相应的野生型酶相比,这些变体具有提高其使用过氧化物作为供氧体的能力的至少一个突变。 与亲本酶或相应的野生型酶相比,变体还具有提高热稳定性的至少一个突变。 优选的变体包括具有L52I,I58V,F87A,H100R,S106R,F107L,A135S,M145A / V,A184V,N239H,S274T,L324I,V340M,I366V,K434E,E442K和/或V446I的细胞色素P450 BM-3血红素结构域变体 氨基酸取代。

    Directed evolution of galactose oxidase enzymes
    8.
    发明授权
    Directed evolution of galactose oxidase enzymes 失效
    半乳糖氧化酶的定向进化

    公开(公告)号:US07115403B1

    公开(公告)日:2006-10-03

    申请号:US09571553

    申请日:2000-05-16

    CPC分类号: C12N9/0006 C12N15/102

    摘要: This invention relates to the expression of improved polynucleotide and polypeptide sequences encoding for eukaryotic enzymes, particularly oxidase enzymes. The enzymes are advantageously produced in conventional or facile expression systems. Various methods for directed evolution of polynucleotide sequences can be used to obtain the improved sequences. The improved characteristics of the polypeptides or proteins generated in this manner include improved expression, enhanced activity toward one or more substrates, and increased thermal stability. In a particular embodiment, the invention relates to improved expression of the galactose oxidase gene and galactose oxidase enzymes. GAO mutants that are highly active and/or thermostable are disclosed.

    摘要翻译: 本发明涉及编码真核生物酶,特别是氧化酶的改良的多核苷酸和多肽序列的表达。 酶有利地在常规或简单的表达系统中产生。 可以使用用于多核苷酸序列的定向进化的各种方法来获得改进的序列。 以这种方式产生的多肽或蛋白质的改进特征包括改进的表达,增强对一种或多种底物的活性和增加的热稳定性。 在一个具体实施方案中,本发明涉及半乳糖氧化酶基因和半乳糖氧化酶的改进表达。 公开了高活性和/或热稳定的GAO突变体。

    Directed evolution of oxidase enzymes
    9.
    发明授权
    Directed evolution of oxidase enzymes 失效
    氧化酶的定向进化

    公开(公告)号:US07098010B1

    公开(公告)日:2006-08-29

    申请号:US09722602

    申请日:2000-11-27

    CPC分类号: C12N9/0006 C12N15/102

    摘要: This invention relates to the expression of improved polynucleotide and polypeptide sequences encoding for eukaryotic enzymes, particularly oxidase enzymes. The enzymes are advantagoeusly produced in conventional or facile expression systems. Various methods for directed evolution of polynucleotide sequences can be used to obtain the improved sequences. The improved characteristics of the polypeptides or proteins generated in this manner include improved expression, enhanced activity toward one or more substrates, and increased thermal stability. In a particular embodiment, the invention relates to improved expression of the galactose oxidase gene and galactose oxidase enzymes. GAO mutants that are highly active and/or thermostable are disclosed.

    摘要翻译: 本发明涉及编码真核生物酶,特别是氧化酶的改良的多核苷酸和多肽序列的表达。 这些酶在常规或简单的表达系统中有利地产生。 可以使用用于多核苷酸序列的定向进化的各种方法来获得改进的序列。 以这种方式产生的多肽或蛋白质的改进特征包括改进的表达,增强对一种或多种底物的活性和增加的热稳定性。 在一个具体实施方案中,本发明涉及半乳糖氧化酶基因和半乳糖氧化酶的改进表达。 公开了高活性和/或热稳定的GAO突变体。