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1. (WO1996005295) AN IMPROVED CLEANING COMPOSITION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1996/005295 International Application No.: PCT/US1995/010426
Publication Date: 22.02.1996 International Filing Date: 09.08.1995
Chapter 2 Demand Filed: 07.03.1996
IPC:
C11D 3/386 (2006.01) ,C11D 3/39 (2006.01) ,C12N 9/28 (2006.01)
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
3
Other compounding ingredients of detergent compositions covered in group C11D1/101
16
Organic compounds
38
Products with no well-defined composition
386
Preparations containing enzymes
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
D
DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
3
Other compounding ingredients of detergent compositions covered in group C11D1/101
39
Organic or inorganic per-compounds
C CHEMISTRY; METALLURGY
12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
N
MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICRO-ORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9
Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes
14
Hydrolases (3.)
24
acting on glycosyl compounds (3.2)
26
acting on alpha-1, 4-glucosidic bonds, e.g. hyaluronidase, invertase, amylase
28
Alpha-amylase from microbial source, e.g. bacterial amylase
Applicants:
GENENCOR INTERNATIONAL, INC. [US/US]; 4 Cambridge Place 1870 South Winton Road Rochester, NY 14618, US
Inventors:
BARNETT, Christopher, C.; US
MITCHINSON, Colin; US
POWER, Scott, D.; US
Agent:
STONE, Christopher, L.; Genencor International, Inc. 180 Kimball Way South San Francisco, CA 94080, US
Priority Data:
08/289,35111.08.1994US
Title (EN) AN IMPROVED CLEANING COMPOSITION
(FR) COMPOSITION DE NETTOYAGE AMELIOREE
Abstract:
(EN) Novel alpha-amylase mutants derived from the DNA sequences of naturally occurring or recombinant alpha-amylases are disclosed. The mutant alpha-amylases, in general, are obtained by $i(in vitro) modifications of a precursor DNA sequence encoding the naturally occurring or recombinant alpha-amylase to generate the substitution (replacement) or deletion of one or more oxidizable amino acid residues in the amino acid sequence of a precursor alpha-amylase. Such mutant alpha-amylases have altered oxidative stability and/or altered pH performance profiles and/or altered thermal stability as compared to the precursor. Also disclosed are detergent and starch liquefaction compositions comprising the mutant amylases, as well as methods of using the mutant amylases. More particularly preferred are mutant alpha-amylases from $i(Bacillus licheniformis) modified at MET197 or MET15 or at TRP138 residues or at equivalent residues of other alpha-amylases from other microbial sources ($i(Bacillus, Aspergillus)).
(FR) Nouvelles alpha-amylases mutantes dérivées de séquences d'ADN d'alpha-amylases naturelles ou de recombinaison. Les alpha-amylsases mutantes, en général, sont obtenues par des modifications in vitro d'une séquence d'ADN précurseur codant l'alpha-amylase naturelle ou de recombinaison pour réaliser la substitution (le remplacement) ou la délétion d'un ou plusieurs restes aminoacides oxydables dans la séquence d'aminoacide d'une alpha-amylase précurseur. De telles alpha-amylases mutantes présentent une stabilité modifiée à l'oxydation et ou des profils modifiés de rendement par rapport au pH et/ou une stabilité thermique modifiée par rapport au précurseur. L'invention porte également sur des compositions de détergents et des compositions de liquéfaction de l'amidon renfermant ces amylases mutantes, ainsi que sur des procédés d'utilisation de telles amylases. Les alpha-amylases mutantes plus particulièrement préférées sont celles provenant de l'espèce $i(Bacillus Licheniformis) modifiée en MET197 ou MET15 ou au niveau des restes TRP138 ou équivalents d'autre alpha-amylases provenant d'autres sources microbiennes $i((Bacillus, Aspergillus)).
Designated States: AU, BR, CA, CN, CZ, FI, HU, JP, KR, MX, NO, NZ, PL, RU, VN
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
FI970563NO19970609MXPA/a/1997/000776VN0899EP0775201JPH10504197
CN1158637CA2197203KR1019970704872NZ291984AU1995033662