PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6335045-9 1984 Antibiotic resistance to Ampicillin, Cephaloridine, Cephalexine and Cefazolin observed in receiving strains after conjugation is not only due to beta-lactamase transfer. Ampicillin 25-35 beta-lactamase Escherichia coli 145-159