ID 3.2.1.133 DE glucan 1,4-alpha-maltohydrolase. AN maltogenic alpha-amylase. CA hydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides so as CA to remove successive alpha-maltose residues from the non-reducing ends of CA the chains. CC -!- Acts on starch and related polysaccharides and oligosaccharides. CC -!- The product is alpha-maltose; cf. EC 3.2.1.2. DR P32818, AMYM_BACAD ; Q04977, AMYM_BACLI ; P19531, AMYM_GEOSE ; //