PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
23785415-1	2013	Vitamin B12, a co-factor in methyl-group transfer, is important in maintaining DNA (deoxycytidine) methylation.	Deoxycytidine	84-97	NADH:ubiquinone oxidoreductase subunit B3	Homo sapiens	8-11