PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
15340146-6	2004	The proteins were identified by using a chemoenzymatic approach that exploits an engineered galactosyltransferase enzyme to selectively label O-GlcNAc proteins with a ketone-biotin tag.	Biotin	174-180	O-linked N-acetylglucosamine (GlcNAc) transferase	Homo sapiens	142-150