PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25906485-1 2015 AmpC beta-lactamase is an enzyme commonly produced by Escherichia coli that causes resistance to cephalosporins and penicillins. Cephalosporins 97-111 beta-lactamase Escherichia coli 5-19