Glycoside hydrolasesEC3.2.1. are a widespread group of enzymes that
hydrolyse the
glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycoside hydrolases, based on sequence similarity, has led to the definition of >100 different families.[1][2][3] This classification is available on the
CAZy web site,[4][5] and also discussed at CAZypedia, an online encyclopedia of carbohydrate active enzymes.[6][7]
The enzymes in this family have amylomaltase or 4-α-glucanotransferase activity (
EC2.4.1.25)
CAZY GH_77, they transfer a segment of a (1,4)-alpha-D-glucan to a new 4-position in an acceptor, which may be
glucose or (1,4)-alpha-D-glucan.[8] They belong to the disproportionating family of enzymes.