PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
11371572-2	2001	Cobalamin (vitamin B(12)) is structurally similar to heme and is a cofactor for methionine synthase, a key enzyme in folate metabolism.	Niacinamide	11-20	5-methyltetrahydrofolate-homocysteine methyltransferase	Homo sapiens	80-99