PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
9148943-3	1997	Exposure of mouse 3T3 cells to increasing concentrations of CNU, and subsequent selection of resistant cells, led to the isolation of clones with 5-10 times higher levels of MGMT activity than in the control.	1-(2-chloroethyl)-1-nitrosourea	60-63	O-6-methylguanine-DNA methyltransferase	Mus musculus	174-178