PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
10369401-3	1999	Replacement of valine with isoleucine at this position provides access to a binding site that is larger in COX-2 than in COX-1.	Isoleucine	27-37	mitochondrially encoded cytochrome c oxidase I	Homo sapiens	121-126