Reaction catalyzed by NAD+-protein-arginine ADP-ribosyltransferase (2.4.2.31)

	P2X7 purinoceptor protein	+		NAD+	=		Nomega-[(2\'-phospho-ADP)-D-ribosyl]-P2X7 purinoceptor protein-L-arginine	+
	P2X7 purinoceptor protein	+		NAD+	=		Nomega-[(2'-phospho-ADP)-D-ribosyl]-P2X7 purinoceptor protein-L-arginine	+		nicotinamide