POLYPEPTIDES WITH ENDOGLUCANASE ACTIVITY AND USES THEREOF
    3.
    发明申请
    POLYPEPTIDES WITH ENDOGLUCANASE ACTIVITY AND USES THEREOF 审中-公开
    具有内切葡聚糖酶活性的多肽及其用途

    公开(公告)号:WO2017106676A1

    公开(公告)日:2017-06-22

    申请号:PCT/US2016/067223

    申请日:2016-12-16

    Applicant: DANISCO US INC

    CPC classification number: C12N9/24 C12N9/2437 C12Y302/01004

    Abstract: Disclosed herein are cellulase variants, or active fragments thereof, and polynucleotides encoding same, wherein the cellulase variants, or active fragments thereof, hav endoglucanase activity. Also disclosed herein are compositions comprising said cellulase variants, or active fragments thereof; vectors and/or host cells comprising the polynucleotides encoding said cellulase variants, or active fragments thereof; and methods for making and/or using said cellulase variants, or active fragments thereof and/or compositions containing same; wherein said cellulase variants, or active fragments thereof, have endoglucanase activity.

    Abstract translation: 本文公开了纤维素酶变体或其活性片段和编码它们的多核苷酸,其中纤维素酶变体或其活性片段具有内切葡聚糖酶活性。 本文还公开了包含所述纤维素酶变体或其活性片段的组合物; 包含编码所述纤维素酶变体的多核苷酸或其活性片段的载体和/或宿主细胞; 以及制造和/或使用所述纤维素酶变体或其活性片段和/或含有它们的组合物的方法; 其中所述纤维素酶变体或其活性片段具有内切葡聚糖酶活性。

    VARIANT ALPHA AMYLASES WITH ENHANCED ACTIVITY ON STARCH POLYMERS
    9.
    发明申请
    VARIANT ALPHA AMYLASES WITH ENHANCED ACTIVITY ON STARCH POLYMERS 审中-公开
    具有增强活性的淀粉聚合物的变性乳酸淀粉

    公开(公告)号:WO2014007921A1

    公开(公告)日:2014-01-09

    申请号:PCT/US2013/042702

    申请日:2013-05-24

    Abstract: Described are variants of alpha-amylase enzymes for use in industrial processes, such as liquefaction of starch. The alpha-amylase variants have increased specific activity allowing the more rapidly reduction of peak viscosity during liquefaction processes. The alpha-amylase is modified by introducing into the amino sequence of a parent Family 13 alpha-amylase polypeptide a mutation at an amino acid residue in the starch-binding groove; wherein the starch-binding groove is formed by amino acid residues in the alpha-helix preceding the first beta-strand in the A domain, the loop between the sixth alpha-helix and the seventh beta-strand in the A domain, the loop between the seventh alpha-helix and the eighth beta-strand in the A domain, and the loop connecting the A domain and the C domain; and wherein the mutation alters the binding of starch to the variant alpha amylase polypeptide compared to the parental alpha amylase polypeptide.

    Abstract translation: 描述了用于工业过程中的α-淀粉酶的变体,例如淀粉的液化。 α-淀粉酶变体具有增加的比活性,允许在液化过程期间峰值粘度的更快速降低。 通过在母体家族13α-淀粉酶多肽的氨基酸序列中引入淀粉结合槽中的氨基酸残基处的突变来修饰α-淀粉酶; 其中淀粉结合槽由A结构域中的第一个β链之前的α-螺旋中的氨基酸残基形成,A结构域中的第六个α-螺旋和第七个β链之间的环, A域中的第七个α-螺旋和第八个β链,以及连接A结构域和C结构域的环; 并且其中所述突变改变了与亲本α-淀粉酶多肽相比淀粉与变体α淀粉酶多肽的结合。

Patent Agency Ranking