4-Methylumbelliferyl ?-D-glucopyranoside has been used to assay acid alpha-glucosidase (GAA) activity in tissue homogenates.
Biochem/physiol Actions
4-Methylumbelliferyl ?-D-glucopyranoside serves as a fluorogenic substrate for the ?-glucosidase enzyme. The product, 4-methylumbelliferyl, shows a peak at 440nm in the fluorescence spectra.