Mutant alpha-amylase

摘要

Novel alpha-amylase enzymes are disclosed having a substution equivalent to G475R in Bacillus licheniformis. The disclosed alpha-amylase enzymes show improved specific activity and starch hydrolysis performance. Also provided are polynucleotides encoding such enzymes, expression vectors including such polynucleotides, host cells transformed with such expression vectors, and the use of such enzymes in detergent compositions.