公开(公告)号：US20120156733A1

公开(公告)日：2012-06-21

申请号：US13291938

申请日：2011-11-08

申请人： William A. Cuevas ,  Sang-Kyu Lee ,  Sandra W. Ramer ,  Andrew Shaw ,  Amr R. Toppozada ,  David A. Estell ,  Sura Hadi

发明人： William A. Cuevas ,  Sang-Kyu Lee ,  Sandra W. Ramer ,  Andrew Shaw ,  Amr R. Toppozada ,  David A. Estell ,  Sura Hadi

IPC分类号： C12P7/14 ,  C12P19/14

CPC分类号： D06M16/003 ,  C11D3/38609 ,  C11D3/38618 ,  C11D3/3869 ,  C12N9/2417 ,  C12Y302/01001 ,  D06L4/40

摘要： Described are variants of a parent α-amylase that exhibits an alteration in at least one of the following properties relative to said parent α-amylase: specific activity, substrate specificity, substrate binding, substrate cleavage, thermal stability, pH-dependent activity, pH-dependent stability, oxidative stability, Ca2+ dependency, pI, and wash performance. The variants are suitable for starch conversion, ethanol production, laundry washing, dish washing, hard surface cleaning, textile desizing, and/or sweetener production.

摘要翻译： 描述了亲本α-淀粉酶的变体，其相对于所述亲本α-淀粉酶在至少一个以下性质中具有改变：比活性，底物特异性，底物结合，底物切割，热稳定性，pH依赖性活性，pH 依赖稳定性，氧化稳定性，Ca2 +依赖性，pI和洗涤性能。 这些变体适用于淀粉转化，乙醇生产，洗衣，洗碗，硬表面清洗，纺织品退浆和/或甜味剂生产。