PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
16025538-3	2005	After copper sulfate induction, transfected S2 cells were found to secrete hEPO with a maximum expression level of 18 mg/L and a secretion efficiency near 98%.	Copper Sulfate	6-20	erythropoietin	Homo sapiens	75-79	
17963934-3	2008	Addition of copper sulfate as an inducer to infected, stably transfected S2 cells resulted in simultaneous expression of hEPO and three fluorescent proteins.	Copper Sulfate	12-26	erythropoietin	Homo sapiens	121-125