PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19234185-3 2009 Although ATP acts as a soluble ligand to activate P2X(7), gating of P2X(7) by NAD(+) requires ecto-ADP-ribosyltransferase ART2.2-catalyzed transfer of the ADP-ribose moiety from NAD(+) onto Arg125 of P2X(7). Ribose 159-165 ADP-ribosyltransferase 2b Mus musculus 122-128