PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2263207-0	1990	Methylmethane-sulphonate and X-ray-induced mutations in the Chinese hamster hprt gene: mRNA phenotyping using polymerase chain reactions.	Methyl Methanesulfonate	0-24	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	76-80	
2263207-1	1990	Alterations in the hprt gene of Chinese hamster cells were determined in 71 spontaneous, methylmethane sulphonate (MMS)- and X-ray-induced mutants, using the Southern blot hybridization technique.	Methyl Methanesulfonate	89-113	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	19-23	
2263207-1	1990	Alterations in the hprt gene of Chinese hamster cells were determined in 71 spontaneous, methylmethane sulphonate (MMS)- and X-ray-induced mutants, using the Southern blot hybridization technique.	Methyl Methanesulfonate	115-118	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	19-23