Abstract:Mucopolysaccharidosis type IIIA (MPS IIIA) is a lysosomal storage disorder due to the deficient activity of sulfamidase (SGSH). Traditionally, measurement of this enzymatic activity has been performed using a fluorescently (4-MU) labeled glycoside substrate. While this substrate is inexpensive and readily available, the current method requires a 2-step procedure that is performed over 2 days. Here we report a new and simplified procedure using the 4-MU substrate. Major advantages of this assay method over the … Show more
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