PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6208403-4 1984 Glycosylhydrolases known to cleave alpha-D-mannose, beta-D-galactose (1,4-linked), beta-N-acetyl-D-glucosamine, and alpha-N-acetyl-D-galactosamine did not reduce the activity of epiglycanin. beta-D-galactose 52-68 mucin 21, cell surface associated Homo sapiens 178-189