ID 2.4.1.372 DE mutansucrase. CA [(1->3)-alpha-D-glucosyl](n) + sucrose = [(1->3)-alpha-D-glucosyl](n+1) + CA D-fructose. CC -!- The glucansucrases transfer a D-glucosyl residue from sucrose to a CC glucan chain. CC -!- They are classified based on the linkage by which they attach the CC transferred residue. CC -!- In some cases, in which the enzyme forms more than one linkage type, CC classification relies on the relative proportion of the linkages that CC are generated. CC -!- This enzyme extends the glucan chain by an alpha(1->3) linkage. //