PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2309578-10	1990	Cross-linking studies using 125I-labeled TGF-beta show that this loss of activity is due to TGF-beta binding to a protein of approximately 300 kD.	Iodine-125	28-32	transforming growth factor, beta 1	Mus musculus	41-49	
2309578-10	1990	Cross-linking studies using 125I-labeled TGF-beta show that this loss of activity is due to TGF-beta binding to a protein of approximately 300 kD.	Iodine-125	28-32	transforming growth factor, beta 1	Mus musculus	92-100