PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 4584801-1 1973 Transformation of R-factor RP4 specifying resistance to ampicillin, kanamycin, and tetracycline from Escherichia coli to Rhizobium trifolii is reported. Ampicillin 56-66 rhodopsin Homo sapiens 27-30