PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
16787057-2	2006	The present studies show that enhancement of carbon acidity of alpha-amino acids by cofactor pyridoxal 5"-phosphate, PLP, with an unusual, unprotonated pyridine is due to solvation effects, in contrast to the intrinsic electron-withdrawing stabilization by the pyridinium ion to form a quinonoid intermediate.	quinonoid	286-295	proteolipid protein 1	Homo sapiens	117-120