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  • Title: [Comparative study of glycosidase from cattle liver and exoglycanase from Aspergillus awamori].
    Author: Firsov LM.
    Journal: Biokhimiia; 1978 Dec; 43(12):2222-32. PubMed ID: 369619.
    Abstract:
    Anomerities of products were estimated for glucosidases from cattle liver and Aspergillus awamori. It was demonstrated that the enzyme from cattle liver is alpha-glucosidase and that from Asp. awamori is exogluconase. It was demonstrated that alpha-glucosidase hydrolyzes the C1--O bond in the course of reaction. delta-Lactone of gluconic acid is a competitive inhibitor for both enzymes. The secondary kinetic isotope effects for both enzymes were measured. The isotope effect for alpha-glucosidase is equal to 1, for exogluconase 1,1 for glycogen and 1,18 for maltose. Some aspects of mechanisms of both enzymes are discussed in terms of the data obtained.
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