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    • 91. 发明申请
    • CREATION OF DIVERSITY IN POLYPEPTIDES
    • 多糖生物多样性的创造
    • US20100136653A1
    • 2010-06-03
    • US12703986
    • 2010-02-11
    • Allan SvendsenLars Beier
    • Allan SvendsenLars Beier
    • C12N9/10C07H21/04
    • A21D8/042C12N9/1048C12N9/2417C12N15/1027C12N15/1058C12N15/1089
    • The inventors realized that the diversity generated by conventional methods may be limited by steric hindrance between amino acid residues in the three-dimensional structures of the resulting polypeptides. The steric hindrance may occur between amino acid residues at widely different positions in the amino acid sequences, e.g. between residues in two different domains of the 3D structure, and resulting polypeptides which include such steric hindrance may never be observed in the conventional recombination methods because they may be expressed in poor yields or may have poor activity or stability.The inventors developed a method to identify and alleviate such steric hindrance in the resulting polypeptides. In an alignment of the three-dimensional structures, steric hindrance is indicated when residues from two different structures are located within a certain distance. Pairs of residues at corresponding positions in the amino acid sequences are not considered, and residues close to the surface (high solvent accessibility) are considered to be less prone to steric hindrance.
    • 发明人意识到,通过常规方法产生的多样性可能受到所得多肽的三维结构中的氨基酸残基之间的空间位阻的限制。 空间位阻可以发生在氨基酸序列中广泛不同位置的氨基酸残基之间,例如, 在3D结构的两个不同结构域中的残基之间以及包含这种空间位阻的所得多肽在常规重组方法中可能永远不会观察到,因为它们可能以不良产率表达或可能具有差的活性或稳定性。 发明人开发了鉴定和减轻所得多肽中这种空间位阻的方法。 在三维结构的排列中,当来自两个不同结构的残基位于一定距离内时,指示空间位阻。 不考虑氨基酸序列中对应位置的残基对,并且靠近表面的残留物(高溶剂可及性)被认为不太容易产生空间位阻。
    • 95. 发明授权
    • Alpha-amylase variants
    • α-淀粉酶变体
    • US08465957B2
    • 2013-06-18
    • US13478512
    • 2012-05-23
    • Allan SvendsenSoren KjaerulffHenrik Bisgaard-FrantzenCarsten Andersen
    • Allan SvendsenSoren KjaerulffHenrik Bisgaard-FrantzenCarsten Andersen
    • C12N9/28
    • C12N9/2414C07H21/04C11D3/38609C11D3/38618C12N9/2417
    • The invention relates to a variant of a parent Termamyl-like alpha-amylase, comprising mutations in two, three, four, five or six regions/positions. The variants have increased stability at high temperatures (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.
    • 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。 这些变体在高温下(相对于亲本)具有增加的稳定性。 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,该变体表现出增加。
    • 99. 发明申请
    • Alpha-Amylase Variants
    • α-淀粉酶变体
    • US20110287516A1
    • 2011-11-24
    • US13038991
    • 2011-03-02
    • Allan SvendsenSoeren KjaerulffHenrik Bisgaard-FrantzenCarsten Andersen
    • Allan SvendsenSoeren KjaerulffHenrik Bisgaard-FrantzenCarsten Andersen
    • C12N9/26
    • C12N9/2414C07H21/04C11D3/38609C11D3/38618C12N9/2417
    • The invention relates to a variant of a parent Termamyl-like alpha-amylase, comprising mutations in two, three, four, five or six regions/positions. The variants have increased stability at high temperatures (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.
    • 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。 这些变体在高温下(相对于亲本)具有增加的稳定性。 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,该变体表现出增加。