Patent ID: 7098013
Filing Date: 2006-08-29
Classification: C12N,C12P

Abstract:
1. An isolated DNA, which encodes a polypeptide comprising the amino acid sequence of SEQ ID NO:2; wherein the polypeptide has an enzymatic activity of producing, through α-isomaltosyl-transferring reaction, a saccharide having a structure of cyclo{ 6)-α-D-glucopyranosyl-(1 3)-α-D-glucopyranosyl-(1 6)-α-D-glucopyranosyl-(1 3)-α-D-glucopyranosyl-(1 } from a saccharide having a glucose polymerization degree of 3 or higher and having both α-1,6 glucosidic linkage as a linkage at the non-reducing end and α-1,4 glucosidic linkage other than the linkage at the non-reducing end, represented by the chemical formula 1: (wherein “Gn” means an α-1,4-glucan having a glucose polymerization degree of “n”, and “n” means an integer of 2 or greater.).