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ß-d-galactosidase

Pronunciation: ga-lak'to-sid'as

Definition: An enzyme that catalyzes the hydrolysis of lactose into d-glucose and d-galactose, as well as the hydrolysis of other ß-d-galactosides; it also catalyzes galactotransferase reactions; a deficiency of ß-d-galactosidase leads to problems in the intestinal digestion of lactose; used in the production of milk products for adults who lack the intestinal enzyme; a defect of one isozyme of ß-d-galactosidase is associated with Morquio syndrome type B.

Synonym(s): lactase

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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