PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
17125260-5	2006	All modifications at the uracil base of UTP led to a decrease in potency at the P2Y4 receptor.	Uracil	25-31	pyrimidinergic receptor P2Y4	Homo sapiens	80-84	
11754592-0	2002	Methanocarba modification of uracil and adenine nucleotides: high potency of Northern ring conformation at P2Y1, P2Y2, P2Y4, and P2Y11 but not P2Y6 receptors.	Uracil	29-35	pyrimidinergic receptor P2Y4	Homo sapiens	119-123