PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6811862-1 1982 A murine BALB/c IgG2a (lambda 3) myeloma immunoglobulin SAPC-15 with binding activity for negatively charged polysaccharides has been purified by affinity chromatography, and its interaction with heparin and various other polyanionic antigens has been studied. Polysaccharides 109-124 immunoglobulin heavy variable V1-9 Mus musculus 16-21