PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2527097-5 1989 The measurement of residual enzyme activity in the fibroblasts of patients which best correlated with the onset of the illness was the ion exchange chromatographic separation of Hex A-associated hydrolysis of the synthetic substrate 4-methylumbelliferyl N-acetyl-beta-D-glucosamine-6-sulfate (4MUGS). 4-methylumbelliferyl n-acetyl-beta-d-glucosamine-6-sulfate 233-291 hexosaminidase subunit alpha Homo sapiens 178-183