Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Transferase other than ribonuclease
Reexamination Certificate
2007-07-10
2007-07-10
Rao, Manjunath (Department: 1652)
Chemistry: molecular biology and microbiology
Enzyme , proenzyme; compositions thereof; process for...
Transferase other than ribonuclease
C435S004000, C435S006120, C435S069100, C435S183000, C435S252300, C435S252500, C435S320100, C536S023200
Reexamination Certificate
active
10089549
ABSTRACT:
The object of the present invention is to provide an α-isomaltosylglucosaccharide-forming enzyme, process of the same, cyclotetrasaccharide, and saccharide composition comprising the saccharide which are obtainable by using the enzyme; and is solved by establishing an α-isomaltosylglucosaccharide-forming enzyme which forms a saccharide, having a glucose polymerization degree of at least three and having both the α-1,6 glucosidic linkage as a linkage at the non-reducing end and the α-1,4 glucosidic linkage other than the linkage at the non-reducing end, by catalyzing the α-glucosyl-transfer from a saccharide having a glucose polymerization degree of at least two and having the α-1,4 glucosidic linkage as a linkage at the non-reducing end without substantially increasing the reducing power; α-isomaltosyl-transferring method using the enzyme; method for forming α-isomaltosylglucosaccharide; process for producing a cyclotetrasaccharide having the structure of cyclo{→6)-α-D-glucopyranosyl-(1→3)-α-D-glucopyranosyl-(1→6)-α-D-glucopyranosyl-(1→3)-α-D-glucopyranosyl-(1→} using both the α-isomaltosylglucosaccharide-forming enzyme and the α-isomaltosyl-transferring enzyme; and the uses of the saccharides obtainable therewith.
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Fukuda Shigeharu
Higashiyama Takanobu
Kubota Michio
Miyake Toshio
Tsusaki Keiji
Browdy and Neimark PLLC
Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
Rao Manjunath
LandOfFree
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