PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8157712-10 1994 The difference in pI of each hCG isoform was attributable to the extent of sialylation; basic hCG isoforms contained less sialic acid by immunological detection using lectins. N-Acetylneuraminic Acid 122-133 chorionic gonadotropin subunit beta 5 Homo sapiens 94-97