PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
23592783-8	2013	The transition from zymogen to active C1s repositions both loops such that they would be able to interact with sulfotyrosine residues on C4.	tyrosine O-sulfate	111-124	complement C4A (Rodgers blood group)	Homo sapiens	137-139