PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2172971-4	1990	rGEF increased the exchange rate of GDP in normal [Gly12]p21 or oncogenic [Val12]p21 up to 30- to 40-fold under physiological concentrations of Mg2+.	Guanosine Diphosphate	36-39	ras homolog family member A	Bos taurus	57-60	
2172971-4	1990	rGEF increased the exchange rate of GDP in normal [Gly12]p21 or oncogenic [Val12]p21 up to 30- to 40-fold under physiological concentrations of Mg2+.	Guanosine Diphosphate	36-39	ras homolog family member A	Bos taurus	81-84