PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 407299-7 1977 Two single paraprotein-producing varients (IgG2b or IgA) were derived when cells were cultured in the presence of Fungizone. Amphotericin B 114-123 immunoglobulin heavy constant gamma 2B Mus musculus 43-48