PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
18582124-8	2008	The formamidopyrimidine derivative forms from ring opening of the guanine imidazole ring following C-8 oxidation in the N(7), N(9) disubstituted guanine.	formamidopyrimidine	4-23	homeobox C8	Homo sapiens	99-102	
8555407-2	1995	The 1H and 13C NMR features of the two modified nucleosides obtained in DMSO-d6 are indicative of a similar formamidopyrimidine structure for the base residue (the ring-opened form of a C-8 hydroxylated purine).	formamidopyrimidine	108-127	homeobox C8	Homo sapiens	186-189