PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
19778056-3	2009	Taking into account the non-oxidative mechanism of pyrazine formation, the data indicated that all of the ethyl-substituted pyrazines identified in the glyoxal/alanine model system incorporated C-2" and C-3" atoms of alanine, and not that of free acetaldehyde, as the ethyl group carbon atoms.	Pyrazines	51-59	complement C3	Homo sapiens	203-206