Cyclomaltodextrin glucanotransferase



 
Systematic name (1->4)-alpha-D-glucan:(1->4)-alpha-D-glucan 4-alpha-D-[(1->4)-alpha-D-glucano]-transferase (cyclizing) IUBMB nomenclature Cyclomaltodextrin glucanotransferase
CAS number 9030-09-5 IUBMB number EC 2.4.1.19
EC number None
Synonyms
  • Bacillus macerans amylase; cyclodextrin glucanotransferase; α-cyclodextrin glucanotransferase; α-cyclodextrin glycosyltransferase; β-cyclodextrin glucanotransferase; β-cyclodextrin glycosyltransferase; γ-cyclodextrin glycosyltransferase; cyclodextrin glycosyltransferase; cyclomaltodextrin glucotransferase; cyclomaltodextrin glycosyltransferase; konchizaimu; α-1,4-glucan 4-glycosyltransferase, cyclizing; BMA; CGTase; neutral-cyclodextrin glycosyltransferase; 1,4-α-D-glucan 4-α-D-(1,4-α-D-glucano)-transferase (cyclizing)
Properties

Cyclizes part of a (1→4)-α-D-glucan chain by formation of a 1→4)-α-D-glucosidic bond. Cyclomaltodextrins (Schardinger dextrins) of various sizes (6,7,8, etc. glucose units) are formed reversibly from starch and similar substrates. Will also disproportionate linear maltodextrins without cyclizing (cf. EC 2.4.1.25, 4-α-glucanotransferase).