PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
21921028-6	2011	CPO displayed a neutral pH optimum and was inhibited by common metallocarboxypeptidase inhibitors as well as citrate.	Citric Acid	109-116	carboxypeptidase O	Homo sapiens	0-3