Patent ID: 6486113
Filing Date: 2002-11-26
Classification: C11D,C12N

Abstract:
A mutant &agr;-amylase obtained by introducing a deletion or a replacement of a methionine residue at the 202-position in the amino acid sequence set forth in SEQ ID NO:1, or by introducing a deletion or a replacement of a methionine residue at a position homologous to the 202-position of SEQ ID NO:1 in an amino acid sequence having at least 95.2% homology to SEQ ID NO:1,wherein said deletion or replacement in either said SEQ ID NO:1 or said amino acid sequence having at least 95.2% homology to SEQ ID NO:1 is with an arbitrary amino acid residue, whereby said mutant alpha-amylase has a residual activity of at least 80% after incubation for 1 hour.