PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
12027671-10	2002	The transformation of p-quinone 2 into acetophenone 3 might contribute to the chemistry of tocopherols oxidized at C-4, i.e., 4-hydroxy-alpha-tocopherol and 4-oxo-alpha-tocopherol, which have been proposed as precursors of natural vitamin E metabolites.	quinone	22-31	complement C4A (Rodgers blood group)	Homo sapiens	115-118	
3761306-2	1986	We found that stypoldione binds covalently to sulfhydryl groups of thiol-containing compounds via addition of sulfur to the C-4" position of the quinone ring.	quinone	145-152	complement C4A (Rodgers blood group)	Homo sapiens	124-127