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  • Title: [Glycosidases of various mollusks: general properties, kinetic studies and action on natural substrates].
    Author: Cabezas JA, Calvo P, Díez T, Melgar MJ, Ortíz de la Tabla MV, de Pedro A, Pérez N, Reglero A, Santamaría MG, Villar E.
    Journal: Rev Esp Fisiol; 1982; 38 Suppl():73-9. PubMed ID: 6293019.
    Abstract:
    The beta-N-acetylhexosaminidase, beta-glucuronidase, alpha-galactosidase, beta-galactosidase and alpha-L-fucosidase activities, in six different species of molluscs, have been studied. The optimum pH was acid in all cases, in agreement with the lysosomal origin of these enzymes. They generally show several pI in their isoelectrofocusing profiles. Kinetic studies with enzymes having several activities in one protein, i.e. beta-N-acetylhexosaminidase and beta-galactosidase, have been carried out with mixed substrates in order to determine the occurrence of several active sites. The action of these enzymes on glycosidic rests containing natural substrates has been studied by enzymatic hydrolysis.
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