PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
12450545-3	2003	The same purification scheme was used to obtain Cobalt-ACE, where zinc ion located at the active site is replaced by cobalt.	Cobalt	117-123	angiotensin-converting enzyme	Sus scrofa	55-58