PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1615759-2	1992	The major proteins secreted by normal human osteoblasts from adult trabecular bone were identified by N-terminal sequencing to be gelatinase, osteonectin, the C-terminal propeptides of the alpha 1 and alpha 2 chains of type I collagen, tissue inhibitor of metalloproteinase 1 (TIMP-1), and beta 2-microglobulin.	propeptides	170-181	adrenoceptor alpha 1D	Homo sapiens	189-208	
1615759-8	1992	The major proteins secreted by normal fetal osteoblastic cells were identified by N-terminal sequencing to be osteonectin and the C-terminal propeptides of the alpha 1 and alpha 2 chains of type I collagen.	propeptides	141-152	adrenoceptor alpha 1D	Homo sapiens	160-179	
28281531-3	2017	Here, by structural and mutagenic analysis, we identify key amino acid residues in the alpha1 and alpha2 C-propeptides that determine homo- and heterotrimerization.	propeptides	107-118	adrenoceptor alpha 1D	Homo sapiens	87-106