PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
9657873-1	1998	We report a rapid and simple protocol for measuring the beta-lactamase activity from recombinant Escherichia coli cells transformed with any of the common plasmid vectors that provide ampicillin resistance through constitutive expression and periplasmic localization of the beta-lactamase TEM-1.	Ampicillin	184-194	hypothetical protein	Escherichia coli	289-294