The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2006
Filed:
Jun. 09, 2000
Keiji Endo, Tochigi, JP;
Kazuaki Igarashi, Tochigi, JP;
Yasuhiro Hayashi, Tochigi, JP;
Hiroshi Hagihara, Tochigi, JP;
Katsuya Ozaki, Tochigi, JP;
Keiji Endo, Tochigi, JP;
Kazuaki Igarashi, Tochigi, JP;
Yasuhiro Hayashi, Tochigi, JP;
Hiroshi Hagihara, Tochigi, JP;
Katsuya Ozaki, Tochigi, JP;
Kao Corporation, Tokyo, JP;
Abstract
The invention relates to a mutant α-amylase obtained by making replacement or deletion of at least one of amino acid residues such as the 167th Gln, 169th Tyr and 178th Ala in the amino acid sequence set forth in SEQ ID NO:1 in an α-amylase having said amino acid sequence, or an α-amylase having a homology of at least 70% to said amino acid sequence, a gene encoding the mutant α-amylase, a vector, transformed cells, a process for producing a mutant α-amylase, comprising culturing the transformed cells, and a detergent composition comprising the mutant α-amylase. The mutant α-amylase of the invention has excellent properties of high resistance to chelating agents, high specific activity in an alkaline region and excellent stability to heat, and is hence useful for detergents for automatic dish washer, laundry detergents and the like.