PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7781780-0 1995 Identification and structural characterization of a mannose-6-phosphate containing oligomannosidic N-glycan from human erythropoietin secreted by recombinant BHK-21 cells. mannose-6-phosphate 52-71 erythropoietin Homo sapiens 119-133