公开(公告)号：EP2061882A2

公开(公告)日：2009-05-27

申请号：EP07839448.3

申请日：2007-10-09

申请人： Danisco US, Inc., Genencor Division

发明人： AEHLE, Wolfgang ,  VAN SOLINGEN, Piet ,  SCHEFFERS, Martijn ,  BOTT, Richard

IPC分类号： C12N9/34 ,  C07K14/37 ,  C12N15/56 ,  C12N15/31 ,  C12R1/885 ,  C12N15/62

CPC分类号： C12N9/2428 ,  C12N15/09 ,  C12Y302/01003 ,  Y02E50/17

摘要： The present invention relates to variants of a parent glucoamylase having altered properties (e.g., improved thermostability and/or specific activity). In particular, the present invention provides compositions comprising the variant glucoamylases, including starch hydrolyzing compositions, animal feed compositions and cleaning compositions. The invention also relates to DNA constructs encoding the variants and methods of producing the glucoamylase variants in host cells.

摘要翻译： 本发明涉及具有改变的性质（例如改善的热稳定性和/或比活性）的母体葡糖淀粉酶的变体。 特别地，本发明提供包含变体葡糖淀粉酶，包括淀粉水解组合物，动物饲料组合物和清洁组合物的组合物。 本发明还涉及编码在宿主细胞中产生葡糖淀粉酶变体的变体和方法的DNA构建体。

公开(公告)号：EP2132308A2

公开(公告)日：2009-12-16

申请号：EP08743789.3

申请日：2008-03-12

申请人： Danisco US, Inc., Genencor Division

发明人： DUAN, Gang ,  QIAN, Kathy ,  SCHEFFERS, Martijn ,  SHETTY, Jayarama K. ,  VAN SOLINGEN, Pieter

IPC分类号： C12N9/30

CPC分类号： C12N9/242

摘要： A maltogenic α-amylase from Trichoderma reesei (TrAA) and variants thereof in the presence of a glucoamylase are useful in the production of high-glucose syrups from liquefied starch, where the high-glucose syrups produced thereby contain at least about 97% glucose. In this process, TrAA advantageously suppresses the reversion of glucose to malto-oligosaccharides. Expression hosts and encoding nucleic acids useful for producing TrAA and its variants also are provided.

公开(公告)号：EP2132307A2

公开(公告)日：2009-12-16

申请号：EP08731952.1

申请日：2008-03-12

申请人： Danisco US, Inc., Genencor Division

发明人： DUAN, Gang ,  QIAN, Kathy ,  SCHEFFERS, Martijn ,  SHETTY, Jayarama ,  VAN SOLINGEN, Pieter

IPC分类号： C12N9/30

CPC分类号： C12N9/242

摘要： A maltogenic a-amylase from Trichoderma reesei (TrAA) and variants thereof are useful in the production of high-maltose syrups from liquefied starch. Particularly high maltose concentrations are achieved when TrAA is used in the presence of a pullulanase. Expression hosts and encoding nucleic acids useful for producing TrAA and its variants also are provided.