maltose + H2O => 2 D-glucose (sucrase-isomaltase) Authored: D'Eustachio, P, 2006-11-03 14:36:07 Digestion of maltose by sucrase-isomaltase to yield glucose EC Number: 3.2.1.20 Pubmed12547908 Pubmed3897250 Reactome Database ID Release 43191108 Reactome, http://www.reactome.org ReactomeREACT_9426 Reviewed: Nichols, BL, 2007-01-15 21:51:24 The alpha-1,4 linkages of extracellular maltose are hydrolyzed to yield glucose in a reaction catalyzed by sucrase-maltase (Nichols et al. 1998; Semenza et al. 2001). In the body, this enzyme is found as a dimer on the external face of enterocytes in microvilli of the small intestine (Hauri et al. 1985), and acts on maltose derived directly from the diet and from the hydrolysis of starch. has a Stoichiometric coefficient of 2