PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7512967-2 1994 In the present study, by use of an affinity column containing sialic acid-binding lectins from Maackia amurensis seeds, a mouse monoclonal IgG2b was successfully separated into three phenotypes, which are different in the degree of sialylation in the heavy chain. N-Acetylneuraminic Acid 62-73 immunoglobulin heavy constant gamma 2B Mus musculus 139-144