InterPro: IPR015220 Glucodextranase N

Glucodextranase domain N, uniquely found in bacterial and archaeal glucoamylases and glucodextranases, adopts a structure consisting of 17 antiparallel beta-strands. These beta-strands are divided into two beta-sheets, and one of the beta-sheets is wrapped by an extended polypeptide, which appears to stabilise the domain. This domain, together with glycoside hydrolase domain A (IPR011613), is mainly involved with catalytic activity, hydrolysing alpha-1,6-glucosidic linkages of dextran to release beta-D-glucose from the non-reducing end via an inverting reaction mechanism [1].