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α-Glucosidase hydrolyzes terminal non-reducing (1→4)-linked α-glucose residues to release a single α-glucose molecule. [ 10 ] α-Glucosidase is a carbohydrate-hydrolase that releases α-glucose as opposed to β-glucose. β-Glucose residues can be released by glucoamylase, a functionally similar enzyme.
Beta-glucosidase # EC 3.2.1.21 : is associated with Gaucher's disease: Lactase: EC 3.2.1.23 : one member of the β-galactosidase family, breaks down milk sugars, and its absence in adulthood causes lactose intolerance: Debranching enzyme # EC 3.2.1.33: in mammals, yeast and some bacteria, combines transferase and glucosidase activity in ...
Chemically, the drug is an analog of the enzyme that is deficient in patients affected by Pompe disease, alpha-glucosidase. It is the first drug available to treat this disease. [2] It was approved for medical use in the United States in April 2006, as Myozyme [7] and in May 2010, as Lumizyme. [8]
Acid alpha-glucosidase, also called acid maltase, [5] is an enzyme that helps to break down glycogen in the lysosome. It is functionally similar to glycogen debranching enzyme, but is on a different chromosome, processed differently by the cell and is located in the lysosome rather than the cytosol. [6] In humans, it is encoded by the GAA gene. [5]
Glycoside hydrolases are classified into EC 3.2.1 as enzymes catalyzing the hydrolysis of O- or S-glycosides. Glycoside hydrolases can also be classified according to the stereochemical outcome of the hydrolysis reaction: thus they can be classified as either retaining or inverting enzymes. [6]
Nüchter et al. (2001) have shown a new approach to Fischer glycosidation. [3] [4] [5] Employing a microwave oven equipped with refluxing apparatus in a rotor reactor with pressure bombs, Nüchter et al. (2001) were able to achieve 100% yield of α- and β-D-glucosides. This method can be performed on a multi-kilogram scale.
Hydrolysis reaction of Maltose being broken at the 1-4 alpha-glucosidase linkage. The mechanism of all FamilyGH13 enzymes is to break a α-glucosidase linkage by hydrolyzing it. Maltase focuses on breaking apart maltose, a disaccharide that is a link between 2 units of glucose, at the α-(1->4) bond.
The enzyme GDP-glucosidase (EC 3.2.1.42) catalyzes the chemical reaction GDP-glucose + H 2 O ⇌ {\displaystyle \rightleftharpoons } D -glucose + GDP Thus, the two substrates of this enzyme are GDP-glucose and H 2 O , whereas its two products are D -glucose and GDP .