Alpha-(1,4) exo-glucosidase involved in breakdown of dietary starch oligosaccharides in small intestine. Cleaves the non-reducing alpha-(1,4)-linked glucose residue in linear dextrins with retention of anomeric center stereochemistry . Mainly hydrolyzes short length oligomaltoses having two to seven glucose residues . Can cleave alpha-(1,2), alpha-(1,3) and alpha-(1,6) glycosidic linkages with lower efficiency, whereas beta glycosidic linkages are usually not hydrolyzed .
Apical cell membrane; Single-pass type II membrane protein. Brush border. .
Broadly expressed. Highly expressed in small intestine. Expressed in granulocytes.
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