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  • Title: Properties of an extracellular -galactosidase secreted by Neurospora crassa.
    Author: Comp PC, Lester G.
    Journal: J Bacteriol; 1971 Jul; 107(1):162-7. PubMed ID: 5563865.
    Abstract:
    An extracellular beta-galactosidase with an activity optimum at about pH 4 was found to occur in the filtrates of Neurospora crassa strain 74A when this mold was grown on certain sugars. This activity accounted for a substantial portion of the beta-galactosidase activity in the culture. The beta-galactosidase in the medium appeared to be a secreted, extracellular enzyme, not a product of cell lysis. The extracellular activity was found to have physical and kinetic properties similar to those of an intracellular beta-galactosidase previously found in Neurospora. Some conditions for the production and concentration of the enzyme are described.
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