ID   2.4.1.248
DE   cycloisomaltooligosaccharide glucanotransferase.
CA   cyclizes part of a (1->6)-alpha-D-glucan chain by formation of a (1->6)-
CA   alpha-D-glucosidic bond.
CC   -!- Specific for (1->6)-alpha-D-glucans (dextrans) and, unlike
CC       cyclomaltodextrin glucanotransferase (EC 2.4.1.19), without activity
CC       toward (1->4)-alpha-D-glucans, such as amylose.
CC   -!- It also has no activity on oligosaccharides, such as amylopectin and
CC       pullulan, containing (1->6)-alpha-D-glucosidic linkages at branch
CC       points.
CC   -!- The enzyme from Bacillus circulans T-3040 has been shown to form
CC       cycloisomalto-oligosaccharides of three sizes (7, 8 and 9 glucose
CC       units).
CC   -!- It will also catalyze the disproportionation of two isomalto-
CC       oligosaccharides molecules to yield a series of isomalto-
CC       oligosachharides and the addition of D-glucose to cycloisomalto-
CC       oligosaccharides with ring opening to form isomalto-oligosaccharides.
DR   P94286, CTA1_NIACI ;  P70873, CTA2_NIACI ;
//