PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2799763-4	1989	Fractionation of VSMC-conditioned medium by heparin-affigel chromatography separated three immunologically and functionally distinct PA inhibitors (PAI), namely PAI-1, PAI-2 and protease-nexin I.	Heparin	44-51	serpin family E member 1	Homo sapiens	133-146	
2799763-6	1989	PA inhibitor 2 (PAI-2) had little affinity for heparin, whereas PA inhibitor 1 (PAI-1) bound to heparin and was eluted from the column at NaCl concentrations of 0.1 to 0.35 M. Protease-nexin I, eluted at NaCl concentrations of 0.5 M and higher.	Heparin	96-103	serpin family E member 1	Homo sapiens	64-78	
2799763-6	1989	PA inhibitor 2 (PAI-2) had little affinity for heparin, whereas PA inhibitor 1 (PAI-1) bound to heparin and was eluted from the column at NaCl concentrations of 0.1 to 0.35 M. Protease-nexin I, eluted at NaCl concentrations of 0.5 M and higher.	Heparin	96-103	serpin family E member 1	Homo sapiens	80-85	
2799763-10	1989	Thus, human VSMC produce all three presently known PAI and these can be separated in single heparin affinity purification step.	Heparin	92-99	serpin family E member 1	Homo sapiens	51-54