PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
18768840-1	2008	The purinoreceptor P2X7 is expressed on subsets of T cells and mediates responses of these cells to extracellular nucleotides such as ATP or NAD(+).	NAD	141-147	purinergic receptor P2X, ligand-gated ion channel, 7	Mus musculus	19-23