similar to saposin c , saposin a stimulates the hydrolysis of 4-methylumbelliferyl beta-glucoside and glucocerebroside by beta-glucosylceramidase and of galactocerebroside by beta-galactosylceramidase , mainly by increasing the maximal velocity of both reactions .
C0020291
hydrolysis
C0017768
beta-glucosylceramidase