PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8202370-5	1994	The frequency of mutations formed in the hypoxanthine phosphoribosyl transferase (hprt) locus was investigated after methylmethanesulfonate (MMS), ethylmethanesulfonate (EMS), N-nitroso-N-methylurea (NMU) and N-nitroso-N-ethylurea (NEU) exposure.	Methylnitrosourea	176-198	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	41-80	
8202370-5	1994	The frequency of mutations formed in the hypoxanthine phosphoribosyl transferase (hprt) locus was investigated after methylmethanesulfonate (MMS), ethylmethanesulfonate (EMS), N-nitroso-N-methylurea (NMU) and N-nitroso-N-ethylurea (NEU) exposure.	Methylnitrosourea	176-198	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	82-86	
8202370-5	1994	The frequency of mutations formed in the hypoxanthine phosphoribosyl transferase (hprt) locus was investigated after methylmethanesulfonate (MMS), ethylmethanesulfonate (EMS), N-nitroso-N-methylurea (NMU) and N-nitroso-N-ethylurea (NEU) exposure.	Methylnitrosourea	200-203	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	41-80	
8202370-5	1994	The frequency of mutations formed in the hypoxanthine phosphoribosyl transferase (hprt) locus was investigated after methylmethanesulfonate (MMS), ethylmethanesulfonate (EMS), N-nitroso-N-methylurea (NMU) and N-nitroso-N-ethylurea (NEU) exposure.	Methylnitrosourea	200-203	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	82-86	
1934271-0	1991	Site specificity of N-methyl-N-nitrosourea-induced transition mutations in the hprt gene.	Methylnitrosourea	20-42	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	79-83	
1934271-3	1991	The present study aimed to investigate the types and position specificities of mutations induced by MNU in another gene, the hprt gene of V79 Chinese hamster cells.	Methylnitrosourea	100-103	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	125-129	
1712425-6	1991	Sequence analysis of PCR-amplified HPRT cDNA from these mutants showed that the spontaneous and the 2 MNU-induced mutant clones lacked exon 4, while the EMS-induced mutant had a GC to AT transition in exon 6.	Methylnitrosourea	102-105	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	35-39	
3328039-3	1987	Significant protection against the mutagenic effects of N-methyl-N-nitrosourea and ethylmethanesulphonate at the hypoxanthine phosphoribosyltransferase (HPRT) locus was observed in clone 8 and SB cells.	Methylnitrosourea	56-78	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	113-151	
3328039-3	1987	Significant protection against the mutagenic effects of N-methyl-N-nitrosourea and ethylmethanesulphonate at the hypoxanthine phosphoribosyltransferase (HPRT) locus was observed in clone 8 and SB cells.	Methylnitrosourea	56-78	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	153-157	
7273309-5	1981	TPA also markedly enhanced the expression, in crowded cultures, of HPRT- mutants induced by the carcinogen N-methyl-N-nitrosourea.	Methylnitrosourea	107-129	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	67-71	
11219871-1	1980	Marked differences between the mutagenic efficiency of N-methyl-N-nitrosourea (MNU), a potent carcinogen, methyl methane sulphonate (MMS) and dimethyl sulphate (DMS), both weak carcinogens, have been reported at the hypoxanthine-guanine phosphoribosyltransferase (HGPRT) and ouabain loci in V79 cells.	Methylnitrosourea	55-77	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	216-262	
11219871-1	1980	Marked differences between the mutagenic efficiency of N-methyl-N-nitrosourea (MNU), a potent carcinogen, methyl methane sulphonate (MMS) and dimethyl sulphate (DMS), both weak carcinogens, have been reported at the hypoxanthine-guanine phosphoribosyltransferase (HGPRT) and ouabain loci in V79 cells.	Methylnitrosourea	55-77	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	264-269	
11219871-1	1980	Marked differences between the mutagenic efficiency of N-methyl-N-nitrosourea (MNU), a potent carcinogen, methyl methane sulphonate (MMS) and dimethyl sulphate (DMS), both weak carcinogens, have been reported at the hypoxanthine-guanine phosphoribosyltransferase (HGPRT) and ouabain loci in V79 cells.	Methylnitrosourea	79-82	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	216-262	
11219871-1	1980	Marked differences between the mutagenic efficiency of N-methyl-N-nitrosourea (MNU), a potent carcinogen, methyl methane sulphonate (MMS) and dimethyl sulphate (DMS), both weak carcinogens, have been reported at the hypoxanthine-guanine phosphoribosyltransferase (HGPRT) and ouabain loci in V79 cells.	Methylnitrosourea	79-82	hypoxanthine-guanine phosphoribosyltransferase	Cricetulus griseus	264-269