ID   2.4.1.161
DE   oligosaccharide 4-alpha-D-glucosyltransferase.
AN   alpha-1,4-transglucosylase.
AN   amylase III.
CA   Transfers the non-reducing terminal alpha-D-glucose residue from a
CA   (1->4)-alpha-D-glucan to the 4-position of a free glucose or of a
CA   glucosyl residue at the non-reducing terminus of a (1->4)-alpha-D-glucan,
CA   thus bringing about the rearrangement of oligosaccharides.
CC   -!- The enzyme acts on amylose, amylopectin, glycogen and
CC       maltooligosaccharides.
CC   -!- No detectable free glucose is formed, indicating the enzyme does not
CC       act as a hydrolase.
CC   -!- The enzyme from the bacterium Cellvibrio japonicus has the highest
CC       activity with maltotriose as a donor, and also accepts maltose, while
CC       the enzyme from amoeba does not accept maltose.
CC   -!- Oligosaccharides with 1->6 linkages cannot function as donors,
CC       but can act as acceptors.
CC   -!- Unlike EC 2.4.1.25, this enzyme can transfer only a single glucosyl
CC       residue.
DR   B3PEE6, OL4AG_CELJU;
//