Amylase variants
    21.
    发明申请
    Amylase variants 审中-公开

    公开(公告)号:US20090280527A1

    公开(公告)日:2009-11-12

    申请号:US11235738

    申请日:2005-09-21

    摘要: The present invention relates to variants of a parent α-amylase, which parent α-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 α-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 α-amylase having one of these amino acid sequences; in which variant:(a) at least one amino acid residue of the parent α-amylase has been deleted; and/or (b) at least one amino acid residue of the parent α-amylase has been replaced by a different amino acid residue; and/or (c) at least one amino acid residue has been inserted relative to the parent α-amylase; the variant having α-amylase activity and exhibiting at least one of the following properties relative to the parent α-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.

    Starch debranching enzymes
    22.
    发明授权
    Starch debranching enzymes 失效
    淀粉脱支酶

    公开(公告)号:US07374922B2

    公开(公告)日:2008-05-20

    申请号:US10375720

    申请日:2003-02-26

    摘要: The invention relates to a genetically engineered variant of a parent starch debranching enzyme, i.e. a pullulanase or an isamylase, the enzyme variant having an improved thermostability at a pH in the range of 4-6 compared to the parent enzyme and/or an increased activity towards amylopectin and/or glycogen compared to the parent enzyme, to methods for producing such starch debranching enzyme variants with improved thermostability and/or altered substrate specificity, and to a method for converting starch to one or more sugars using at least one such enzyme variant.

    摘要翻译: 本发明涉及母体淀粉脱支酶的遗传工程改造,即支链淀粉酶或淀粉酶,所述酶变体在与亲本酶相比在4-6的范围内具有改善的热稳定性和/或增加的活性 对于支链淀粉和/或糖原,与制备具有改进的热稳定性和/或改变的底物特异性的淀粉脱支酶变体的方法以及使用至少一种这样的酶变体将淀粉转化为一种或多种糖的方法 。

    Alpha-amylase mutants
    24.
    发明申请
    Alpha-amylase mutants 失效
    α-淀粉酶突变体

    公开(公告)号:US20050170487A1

    公开(公告)日:2005-08-04

    申请号:US11064196

    申请日:2005-02-22

    IPC分类号: C11D3/386 C12N9/28

    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 α-amylase, which variant has α-amylase activity and at least one altered property as compared to the parent α-amylase, comprises i) analysing the structure of the parent Termamyl-like α-amylase to identify at least one amino acid residue or at least one structural part of the Termamyl-like α-amylase structure, which amino acid residue or structural part is believed to be of relevance for altering the property of the parent Termamyl-like α-amylase (as evaluated on the basis of structural or functional considerations), ii) constructing a Termamyl-like α-amylase variant, which as compared to the parent Termamyl-like α-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 α-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。

    &agr;-amylase and &agr;-amylase variants
    25.
    发明授权
    &agr;-amylase and &agr;-amylase variants 有权
    α-淀粉酶和α-淀粉酶变体

    公开(公告)号:US06361989B1

    公开(公告)日:2002-03-26

    申请号:US09290734

    申请日:1999-04-13

    IPC分类号: C12N900

    摘要: The invention relates to a novel Termamyl-like &agr;-amylase, and Termamyl-like &agr;-amylases 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: 本发明涉及一种新的类戊酰样α-淀粉酶和包含2,3,4,5或6个或6个位置突变的类戊酰样α-淀粉酶。 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。

    Alpha-amylase mutants
    28.
    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

    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。

    Alpha-amylase mutants
    29.
    发明授权
    Alpha-amylase mutants 有权
    α-淀粉酶突变体

    公开(公告)号:US08263368B2

    公开(公告)日:2012-09-11

    申请号:US12493860

    申请日:2009-06-29

    IPC分类号: C12N9/28 C12S11/00 C12P19/14

    摘要: The invention relates to a novel Termamyl-like alpha-amylase, and Termamyl-like alpha-amylases 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 alpha-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 alpha-amylase variant of the invention for washing and/or dishwashing, textile desizing, starch liquefaction, a detergent additive comprising an alpha-amylase variant of the invention, a manual or automatic dishwashing detergent composition comprising an alpha-amylase variant of the invention, a method for generating a variant of a parent Termamyl-like alpha-amylase, which variant exhibits increased thermostability at acidic pH and/or at low Ca2+ concentrations (relative to the parent).

    摘要翻译: 本发明涉及一种新的类戊酰样α-淀粉酶和包含2,3,4,5或6个或6个位置突变的类戊酰样α-淀粉酶。 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。

    Processes for producing a fermentation product
    30.
    发明授权
    Processes for producing a fermentation product 有权
    用于生产发酵产物的方法

    公开(公告)号:US08076109B2

    公开(公告)日:2011-12-13

    申请号:US13079100

    申请日:2011-04-04

    CPC分类号: C12P7/06 Y02E50/17

    摘要: The present invention relates to processes for producing a fermentation product, such as ethanol, from milled starch-containing material comprising (a) saccharifying the milled starch-containing material with a glucoamylase having an amino acid sequence shown in SEQ ID NO: 2, or a glucoamylase being at least 70% identical thereto, at a temperature below the initial gelatinization temperature of said starch-containing material, (b) fermenting using a fermenting organism.

    摘要翻译: 本发明涉及由含碾磨的含淀粉材料生产发酵产物如乙醇的方法,该方法包括:(a)用含有SEQ ID NO:2所示氨基酸序列的葡糖淀粉酶糖化含碾磨淀粉的材料,或 在低于所述含淀粉材料的初始糊化温度的温度下,(b)使用发酵生物发酵的葡糖淀粉酶与其至少70%相同。