利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

57 条记录 (耗时 0.049 秒)

    &agr;-amylase mutants
    11.
    发明授权
    &agr;-amylase mutants 失效
    α-淀粉酶突变体

    公开(公告)号：US06440716B1

    公开(公告)日：2002-08-27

    申请号：US09636252

    申请日：2000-08-10

    申请人： Allan Svendsen ,  Henrik Bisgård-Frantzen ,  Torben Vedel Borchert

    发明人： Allan Svendsen ,  Henrik Bisgård-Frantzen ,  Torben Vedel Borchert

    IPC分类号： C12N928

    CPC分类号： C11D3/386 ,  C12N9/2417

    摘要： The present invention relates to a method of constructing a variant of a parent Termamyl-like &agr;-amylase, which variant has &agr;-amylase activity and at least one altered property as compared to the parent &agr;-amylase, comprises i) analysing the structure of the parent Termamyl-like &agr;-amylase to identify at least one amino acid residue or at least one structural part of the Termamyl-like &agr;-amylase structure, which amino acid residue or structural part is believed to be of relevance for altering the property of the parent Termamyl-like &agr;-amylase (as evaluated on the basis of structural or functional considerations), ii) constructing a Termamyl-like &agr;-amylase variant, which as compared to the parent Termamyl-like &agr;-amylase, has been modified in the amino acid residue or structural part identified in i) so as to alter the property, and, optionally, iii) testing the resulting Termamyl-like &agr;-amylase variant with respect to the property in question.

    摘要翻译： 本发明涉及一种构建母体类戊酰样α-淀粉酶的变体的方法，该变体与母体α-淀粉酶相比具有α-淀粉酶活性和至少一种改变的性质，包括：i）分析 母体类戊酰样α-淀粉酶，以鉴定至少一个氨基酸残基或至少一个类甲酰样α-淀粉酶结构的结构部分，该氨基酸残基或结构部分被认为与改变 亲本类戊酰样α-淀粉酶（根据结构或功能考虑进行评估），ii）构建与母体类戊酰样α-淀粉酶相比较的类戊酰样α-淀粉酶变体，其在 在i）中鉴定的氨基酸残基或结构部分，以便改变其性质，以及任选地，iii）相对于所讨论的性质测试所得到的类戊酰样α-淀粉酶变体。

    Amylase variants
    12.
    发明授权
    Amylase variants 有权
    淀粉酶变体

    公开(公告)号：US06297038B1

    公开(公告)日：2001-10-02

    申请号：US09354191

    申请日：1999-07-15

    申请人： Henrik Bisgård-Frantzen ,  Allan Svendsen ,  Torben Vedel Borchert

    发明人： Henrik Bisgård-Frantzen ,  Allan Svendsen ,  Torben Vedel Borchert

    IPC分类号： C12N928

    CPC分类号： C11D3/38618 ,  C11D3/38609 ,  C11D3/38681 ,  C12N9/2417 ,  C12Y302/01001 ,  D06L1/14

    摘要： The present invention relates to variants of a parent &agr;-amylase, which parent &agr;-amylase (i) has an amino acid sequence selected from the amino acid sequences shown in SEQ ID No. 1, SEQ ID No. 2, SEQ ID No. 3, and SEQ ID No. 7, respectively; or (ii) displays at least 80% homology with one or more of these amino acid sequences; and/or displays immunological cross-reactivity with an antibody raised against an &agr;-amylase having one of these amino acid sequences; and/or is encoded by a DNA sequence which hybridizes with the same probe as a DNA sequence encoding an a-amylase having one of these amino acid sequences; in which variant: (a) at least one amino acid residue of the parent &agr;-amylase has been deleted; and/or (b) at least one amino acid residue of the parent &agr;-amylase has been replaced by a different amino acid residue; and/or (c) at least one amino acid residue has been inserted relative to the parent &agr;-amylase; the variant having &agr;-amylase activity and exhibiting at least one of the following properties relative to the parent &agr;-amylase: increased thermostability; increased stability towards oxidation; and reduced Ca2+ dependency; with the proviso that the amino acid sequence of the variant is not identical to any of the amino acid sequences shown in SEQ ID No. 1, SEQ ID No. 2, SEQ ID No.3 and SEQ ID No. 7, respectively.

    摘要翻译： 本发明涉及母体α-淀粉酶的变体，其母体α-淀粉酶（i）具有选自SEQ ID No.1，SEQ ID No.2，SEQ ID No.2所示的氨基酸序列的氨基酸序列。 3和SEQ ID No.7; 或（ii）与这些氨基酸序列中的一个或多个显示至少80％的同源性; 和/或显示与针对具有这些氨基酸序列之一的α-淀粉酶产生的抗体的免疫交叉反应性; 和/或由与编码具有这些氨基酸序列之一的α-淀粉酶的DNA序列相同的探针杂交的DNA序列编码; 在该变体中：（a）母体α-淀粉酶的至少一个氨基酸残基已被缺失; 和/或（b）母体α-淀粉酶的至少一个氨基酸残基被不同的氨基酸残基替代; 和/或（c）相对于母体α-淀粉酶插入至少一个氨基酸残基; 该变体具有α-淀粉酶活性并且相对于母体α-淀粉酶表现出以下特性中的至少一个：增加的热稳定性; 提高氧化稳定性; 并降低Ca2 +依赖性;条件是变体的氨基酸序列与SEQ ID No.1，SEQ ID No.2，SEQ ID No.3和SEQ ID No所示的任何氨基酸序列不相同。 7，分别。

    &agr;-amylase mutants
    13.
    发明授权
    &agr;-amylase mutants 有权
    α-淀粉酶突变体

    公开(公告)号：US06187576B1

    公开(公告)日：2001-02-13

    申请号：US09170670

    申请日：1998-10-13

    申请人： Allan Svendsen ,  Torben Vedel Borchert ,  Henrik Bisgård-Frantzen

    发明人： Allan Svendsen ,  Torben Vedel Borchert ,  Henrik Bisgård-Frantzen

    IPC分类号： C12N900

    CPC分类号： C12N9/2417 ,  C11D3/386

    摘要： The invention relates to a variant of a parent Termamyl-like &agr;-amylase, comprising mutations in two, three, four, five or six regions/positions. The variants have increased thermostability at acidic pH and/or at low Ca2+ concentrations (relative to the parent). The invention also relates to a DNA construct comprising a DNA sequence encoding an &agr;-amylase variant of the invention, a recombinant expression vector which carries a DNA construct of the invention, a cell which is transformed with a DNA construct of the invention, the use of an &agr;-amylase variant of the invention for washing and/or dishwashing, textile desizing, starch liquefaction, a detergent additive comprising an &agr;-amylase variant of the invention, a manual or automatic dishwashing detergent composition comprising an &agr;-amylase variant of the invention, a method for generating a variant of a parent Termamyl-like &agr;-amylase, which variant exhibits increased thermostability at acidic pH and/or at low Ca2+ concentrations (relative to the parent).

    摘要翻译： 本发明涉及亲本的类戊酰样α-淀粉酶的变体，其包含2,3,4,5或6个/位置的突变。 这些变体在酸性pH和/或低Ca 2+浓度（相对于亲本）下具有增加的热稳定性。 本发明还涉及包含编码本发明的α-淀粉酶变体的DNA序列的DNA构建体，携带本发明的DNA构建体的重组表达载体，用本发明的DNA构建体转化的细胞，使用 本发明的α-淀粉酶变体用于洗涤和/或餐具洗涤，纺织品退浆，淀粉液化，包含本发明的α-淀粉酶变体的洗涤剂添加剂，手动或自动洗碗洗涤剂组合物，其包含α-淀粉酶变体 本发明提供一种产生母体类戊酰样α-淀粉酶的变体的方法，该变体在酸性pH和/或低Ca 2+浓度（相对于亲本）中表现出增加的热稳定性。

    Amylase Variants
    14.
    发明申请
    Amylase Variants 有权
    淀粉酶变体

    公开(公告)号：US20090082246A1

    公开(公告)日：2009-03-26

    申请号：US12204434

    申请日：2008-09-04

    申请人： Carsten Andersen ,  Torben Vedel Borchert ,  Bjarne Ronfeldt Nielsen

    发明人： Carsten Andersen ,  Torben Vedel Borchert ,  Bjarne Ronfeldt Nielsen

    IPC分类号： C11D7/42 ,  C12N9/28 ,  C12N15/56 ,  C12N15/75 ,  C12N1/21

    CPC分类号： C11D3/386 ,  C11D3/38672 ,  C11D3/38681 ,  C12N9/2417

    摘要： The present invention relates to variants (mutants) of polypeptides, in particular Termamyl-like alpha-amylases, which variant has alpha-amylase activity and exhibits an alteration in at least one of the following properties relative to said parent alpha-amylase: substrate specificity, substrate binding, substrate cleavage pattern, thermal stability, pH/activity profile, pH/stability profile, stability towards oxidation, Ca2+ dependency, specific activity, and solubility, in particular under production conditions.

    摘要翻译： 本发明涉及多肽的变体（突变体），特别是类戊酰样α-淀粉酶，该变体具有α-淀粉酶活性并且相对于所述亲本α-淀粉酶在至少一个以下性质中具有改变：底物特异性 ，底物结合，底物切割模式，热稳定性，pH /活性分布，pH /稳定性分布，对氧化的稳定性，Ca 2+依赖性，比活性和溶解度，特别是在生产条件下。

    Alpha-amylase mutants
    20.
    发明授权
    Alpha-amylase mutants 失效
    α-淀粉酶突变体

    公开(公告)号：US08323946B2

    公开(公告)日：2012-12-04

    申请号：US13161931

    申请日：2011-06-16

    申请人： Allan Svendsen ,  Henrik Bisgard-Frantzen ,  Torben Vedel Borchert

    发明人： Allan Svendsen ,  Henrik Bisgard-Frantzen ,  Torben Vedel Borchert

    IPC分类号： C12N9/00 ,  C12N9/30 ,  C12N1/20 ,  C12N15/00 ,  C07H21/04

    CPC分类号： C11D3/386 ,  C12N9/2417

    摘要： The present invention relates to a method of constructing a variant of a parent Termamyl-like alpha-amylase, which variant has alpha-amylase activity and at least one altered property as compared to the parent alpha-amylase, comprises i) analyzing the structure of the parent Termamyl-like alpha-amylase to identify at least one amino acid residue or at least one structural part of the Termamyl-like alpha-amylase structure, which amino acid residue or structural part is believed to be of relevance for altering the property of the parent Termamyl-like alpha-amylase (as evaluated on the basis of structural or functional considerations), ii) constructing a Termamyl-like alpha-amylase variant, which as compared to the parent Termamyl-like alpha-amylase, has been modified in the amino acid residue or structural part identified in i) so as to alter the property, and, optionally, iii) testing the resulting Termamyl-like alpha-amylase variant with respect to the property in question.

    摘要翻译： 本发明涉及一种构建母体类戊酰样α-淀粉酶的变体的方法，该变体具有与母体α-淀粉酶相比具有α-淀粉酶活性和至少一种改变的性质，包括：i）分析 鉴定至少一个氨基酸残基或类甲酰样α-淀粉酶结构的至少一个结构部分，所述氨基酸残基或结构部分被认为与改变其性质有关的相关性 母体类戊酰样α-淀粉酶（根据结构或功能考虑进行评估），ii）构建与母体类戊酰样α-淀粉酶相比的类戊酰样α-淀粉酶变体，已经在 在i）中鉴定的氨基酸残基或结构部分，以改变其性质，以及任选地，iii）相对于所讨论的性质测试所得的类戊酰样α-淀粉酶变体。