PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
12069489-4	2002	In 1993, Ito proposed that melanogenic switching is due to the covalent binding of the intermediate DOPAquinone to the enzyme glutathione reductase.	dopaquinone	100-111	glutathione-disulfide reductase	Homo sapiens	126-147	
8433004-8	1993	When tyrosinase activity is high, an excess of dopaquinone is produced, which results in the inactivation of glutathione reductase and gamma-glutamyl transpeptidase, enzymes essential for pheomelanogenesis.	dopaquinone	47-58	glutathione-disulfide reductase	Homo sapiens	109-130